$.getJSON is an asynchronous request, meaning the code will continue to run even though the request is not yet done. You should trigger the second request when the first one is done, one of the choices you seen already in ComFreek's answer.

Alternatively you could use jQuery's $.when/.then(), similar to this:

var input = "netuetamundis";  var sID;  $(document).ready(function () {     $.when($.getJSON("https://prod.api.pvp.net/api/lol/eune/v1.1/summoner/by-name/" + input + "?api_key=API_KEY_HERE", function () {         obj = name;         sID = obj.id;         console.log(sID);     })).then(function () {         $.getJSON("https://prod.api.pvp.net/api/lol/eune/v1.2/stats/by-summoner/" + sID + "/summary?api_key=API_KEY_HERE", function (stats) {             console.log(stats);         });     }); }); 

This would be more open for future modification and separates out the responsibility for the first call to know about the second call.

The first call can simply complete and do it's own thing not having to be aware of any other logic you may want to add, leaving the coupling of the logic separated.

You're storing the .Text properties of the textboxes directly into the database, this doesn't work. The .Text properties are Strings (i.e. simple text) and not typed as DateTime instances. Do the conversion first, then it will work.

Do this for each date parameter:

Dim bookIssueDate As DateTime = DateTime.ParseExact( txtBookDateIssue.Text, "dd/MM/yyyy", CultureInfo.InvariantCulture ) cmd.Parameters.Add( New OleDbParameter("@Date_Issue", bookIssueDate ) ) 

Note that this code will crash/fail if a user enters an invalid date, e.g. "64/48/9999", I suggest using DateTime.TryParse or DateTime.TryParseExact, but implementing that is an exercise for the reader.

Run dos2unix or similar utility on it to remove the carriage returns (^M).

This message indicates that your file has dos-style lineendings:

-bash: /backup/backup.sh: /bin/bash^M: bad interpreter: No such file or directory 

Utilities like dos2unix will fix it:

 dos2unix <backup.bash >improved-backup.sh 

Or, if no such utility is installed, you can accomplish the same thing with translate:

tr -d "\015\032" <backup.bash >improved-backup.sh 

As for how those characters got there in the first place, @MadPhysicist had some good comments.

The linked list holds operations on the shared data structure.

For example, if I have a stack, it will be manipulated with pushes and pops. The linked list would be a set of pushes and pops on the pseudo-shared stack. Each thread sharing that stack will actually have a local copy, and to get to the current shared state, it'll walk the linked list of operations, and apply each operation in order to its local copy of the stack. When it reaches the end of the linked list, its local copy holds the current state (though, of course, it's subject to becoming stale at any time).

In the traditional model, you'd have some sort of locks around each push and pop. Each thread would wait to obtain a lock, then do a push or pop, then release the lock.

In this model, each thread has a local snapshot of the stack, which it keeps synchronized with other threads' view of the stack by applying the operations in the linked list. When it wants to manipulate the stack, it doesn't try to manipulate it directly at all. Instead, it simply adds its push or pop operation to the linked list, so all the other threads can/will see that operation and they can all stay in sync. Then, of course, it applies the operations in the linked list, and when (for example) there's a pop it checks which thread asked for the pop. It uses the popped item if and only if it's the thread that requested this particular pop.

Just a wild guess: (not much to go on) but I have had similar problems when, for example, I was using the IIS rewrite module on my local machine (and it worked fine), but when I uploaded to a host that did not have that add-on module installed, I would get a 500 error with very little to go on - sounds similar. It drove me crazy trying to find it.

So make sure whatever options/addons that you might have and be using locally in IIS are also installed on the host.

Similarly, make sure you understand everything that is being referenced/used in your web.config - that is likely the problem area.

For solution just uncomment line 29:

**protected $namespace = 'App\\Http\\Controllers';**

in 'app\Providers\RouteServiceProvider.php' file.

just uncomment line 29

I do not think the warnings you have received are related. I had the same warnings which turned out to be the chrome extension React Dev Tools. Removed the extension and the errors have gone.

If you ejected and are curious, this change on the CRA repo is what is causing the error.

To fix it, you need to apply their changes; namely, the last set of files:

• packages/react-scripts/config/paths.js
• packages/react-scripts/config/webpack.config.js
• packages/react-scripts/config/webpackDevServer.config.js
• packages/react-scripts/package.json
• packages/react-scripts/scripts/build.js
• packages/react-scripts/scripts/start.js

Personally, I think you should manually apply the changes because, unless you have been keeping up-to-date with all the changes, you could introduce another bug to your webpack bundle (because of a dependency mismatch or something).

OR, you could do what Geo Angelopoulos suggested. It might take a while but at least your project would be in sync with the CRA repo (and get all their latest enhancements!).

In my case downgrading @angular/animations worked, if you can afford to do that, run the command

npm i @angular/[email protected]

Or use another version that might work for you from the Versions tab here: https://www.npmjs.com/package/@angular/animations

In my case the tensorflow install was looking for cudart64_101.dll

The 101 part of cudart64_101 is the Cuda version - here 101 = 10.1

I had downloaded 11.x, so the version of cudart64 on my system was cudart64_110.dll

This is the wrong file!! cudart64_101.dll ? cudart64_110.dll

Solution

Download Cuda 10.1 from https://developer.nvidia.com/

Install (mine crashes with NSight Visual Studio Integration, so I switched that off)

When the install has finished you should have a Cuda 10.1 folder, and in the bin the dll the system was complaining about being missing

Check that the path to the 10.1 bin folder is registered as a system environmental variable, so it will be checked when loading the library

You may need a reboot if the path is not picked up by the system straight away

If you are using Netbeans older version, you have to make changes in maven to use https over http

Open C:\Program Files\NetBeans8.0.2\java\maven\conf\settings.xml and paste below code in between mirrors tag

<mirror>
<id>maven-mirror</id>
<name>Maven Mirror</name>
<url>https://repo.maven.apache.org/maven2</url>
<mirrorOf>central</mirrorOf>
</mirror>

It will force maven to use https://repo.maven.apache.org/maven2 url.

It's really simple to fix the issue, however keep in mind that you should fork and commit your changes for each library you are using in their repositories to help others as well.

Let's say you have something like this in your code:

$str = "test";
echo($str{0});

since PHP 7.4 curly braces method to get individual characters inside a string has been deprecated, so change the above syntax into this:

$str = "test";
echo($str[0]);

Fixing the code in the question will look something like this:

public function getRecordID(string $zoneID, string $type = '', string $name = ''): string
{
    $records = $this->listRecords($zoneID, $type, $name);
    if (isset($records->result[0]->id)) {
        return $records->result[0]->id;
    }
    return false;
}

I resolved my case by replacing "import" by "require".

// import { parse } from 'node-html-parser';
parse = require('node-html-parser');

As the new feature comes, SameSite=None cookies must also be marked as Secure or they will be rejected.

One can find more information about the change on chromium updates and on this blog post

Note: not quite related directly to the question, but might be useful for others who landed here as it was my concern at first during development of my website:

if you are seeing the warning from question that lists some 3rd party sites (in my case it was google.com, huh) - that means they need to fix it and it's nothing to do with your site. Of course unless the warning mentions your site, in which case adding Secure should fix it.

I found the regexp.source changed from node v12.11.0, maybe the new v8 engine caused. see more on https://github.com/nodejs/node/releases/tag/v12.11.0.

D:\code\react-native>nvm use 12.10.0
Now using node v12.10.0 (64-bit)

D:\code\react-native>node
Welcome to Node.js v12.10.0.
Type ".help" for more information.
> /node_modules[/\\]react[/\\]dist[/\\].*/.source
'node_modules[\\/\\\\]react[\\/\\\\]dist[\\/\\\\].*'
> /node_modules[/\\]react[/\\]dist[/\\].*/.source.replace(/\//g, path.sep)
'node_modules[\\\\\\\\]react[\\\\\\\\]dist[\\\\\\\\].*'
>
(To exit, press ^C again or ^D or type .exit)
>

D:\code\react-native>nvm use 12.11.0
Now using node v12.11.0 (64-bit)

D:\code\react-native>node
Welcome to Node.js v12.11.0.
Type ".help" for more information.
> /node_modules[/\\]react[/\\]dist[/\\].*/.source
'node_modules[/\\\\]react[/\\\\]dist[/\\\\].*'
> /node_modules[/\\]react[/\\]dist[/\\].*/.source.replace(/\//g, path.sep)
'node_modules[\\\\\\]react[\\\\\\]dist[\\\\\\].*'
>
(To exit, press ^C again or ^D or type .exit)
>

D:\code\react-native>nvm use 12.13.0
Now using node v12.13.0 (64-bit)

D:\code\react-native>node
Welcome to Node.js v12.13.0.
Type ".help" for more information.
> /node_modules[/\\]react[/\\]dist[/\\].*/.source
'node_modules[/\\\\]react[/\\\\]dist[/\\\\].*'
> /node_modules[/\\]react[/\\]dist[/\\].*/.source.replace(/\//g, path.sep)
'node_modules[\\\\\\]react[\\\\\\]dist[\\\\\\].*'
>
(To exit, press ^C again or ^D or type .exit)
>

D:\code\react-native>nvm use 13.3.0
Now using node v13.3.0 (64-bit)

D:\code\react-native>node
Welcome to Node.js v13.3.0.
Type ".help" for more information.
> /node_modules[/\\]react[/\\]dist[/\\].*/.source
'node_modules[/\\\\]react[/\\\\]dist[/\\\\].*'
> /node_modules[/\\]react[/\\]dist[/\\].*/.source.replace(/\//g, path.sep)
'node_modules[\\\\\\]react[\\\\\\]dist[\\\\\\].*'
>

I was also facing the same issue:

1. I made sure to be connected to mongoDB by running the following on the terminal:

   brew services start [email protected]
   

   And I got the output:

   Successfully started `mongodb-community`
   

Instructions for installing mongodb at
https://docs.mongodb.com/manual/tutorial/install-mongodb-on-os-x/ or https://www.youtube.com/watch?v=IGIcrMTtjoU

2. My configuration was as follows:

   mongoose.connect(config.mongo_uri, {
       useUnifiedTopology: true,
       useNewUrlParser: true})
       .then(() => console.log("Connected to Database"))
       .catch(err => console.error("An error has occured", err));
   

Which solved my problem!

The javascript below works for me. Credits to @artur.k.space.

function ColabReconnect() {
    var dialog = document.querySelector("colab-dialog.yes-no-dialog");
    var dialogTitle = dialog && dialog.querySelector("div.content-area>h2");
    if (dialogTitle && dialogTitle.innerText == "Runtime disconnected") {
        dialog.querySelector("paper-button#ok").click();
        console.log("Reconnecting...");
    } else {
        console.log("ColabReconnect is in service.");
    }
}
timerId = setInterval(ColabReconnect, 60000);

In the Colab notebook, click on Ctrl + Shift + the i key simultaneously. Copy and paste the script into the prompt line. Then hit Enter before closing the editor.

By doing so, the function will check every 60 seconds to see if the onscreen connection dialog is shown, and if it is, the function would then click the ok button automatically for you.

For everyone using .NET Core CLI on MinGW MSYS. After installing using

dotnet tool install --global dotnet-ef

add this line to to bashrc file c:\msys64\home\username\ .bashrc (location depend on your setup)

export PATH=$PATH:/c/Users/username/.dotnet/tools

Angular 8

In Angular 8, ViewChild has another param

@ViewChild('nameInput', {static: false}) component : Component

You can read more about it here and here

Angular 9 & Angular 10

In Angular 9 default value is static: false, so doesn't need to provide param unless you want to use {static: true}

I had this issue when I used npm link to install my local library, which I've built using cra. I found the answer here. Which literally says:

This problem can also come up when you use npm link or an equivalent. In that case, your bundler might “see” two Reacts — one in application folder and one in your library folder. Assuming 'myapp' and 'mylib' are sibling folders, one possible fix is to run 'npm link ../myapp/node_modules/react' from 'mylib'. This should make the library use the application’s React copy.

Thus, running the command: npm link ../../libraries/core/decipher/node_modules/react from my project folder has fixed the issue.

You can fix the errors by validating your input, which is something you should do regardless of course.

The following typechecks correctly, via type guarding validations

const DNATranscriber = {
    G: 'C',
    C: 'G',
    T: 'A',
    A: 'U'
};

export default class Transcriptor {
    toRna(dna: string) {
        const codons = [...dna];
        if (!isValidSequence(codons)) {
            throw Error('invalid sequence');
        }
        const transcribedRNA = codons.map(codon => DNATranscriber[codon]);
        return transcribedRNA;
    }
}

function isValidSequence(values: string[]): values is Array<keyof typeof DNATranscriber> {
    return values.every(isValidCodon);
}
function isValidCodon(value: string): value is keyof typeof DNATranscriber {
    return value in DNATranscriber;
}

It is worth mentioning that you seem to be under the misapprehention that converting JavaScript to TypeScript involves using classes.

In the following, more idiomatic version, we leverage TypeScript to improve clarity and gain stronger typing of base pair mappings without changing the implementation. We use a function, just like the original, because it makes sense. This is important! Converting JavaScript to TypeScript has nothing to do with classes, it has to do with static types.

const DNATranscriber = {
    G = 'C',
    C = 'G',
    T = 'A',
    A = 'U'
};

export default function toRna(dna: string) {
    const codons = [...dna];
    if (!isValidSequence(codons)) {
        throw Error('invalid sequence');
    }
    const transcribedRNA = codons.map(codon => DNATranscriber[codon]);
    return transcribedRNA;
}

function isValidSequence(values: string[]): values is Array<keyof typeof DNATranscriber> {
    return values.every(isValidCodon);
}
function isValidCodon(value: string): value is keyof typeof DNATranscriber {
    return value in DNATranscriber;
}

Update:

Since TypeScript 3.7, we can write this more expressively, formalizing the correspondence between input validation and its type implication using assertion signatures.

const DNATranscriber = {
    G = 'C',
    C = 'G',
    T = 'A',
    A = 'U'
} as const;

type DNACodon = keyof typeof DNATranscriber;
type RNACodon = typeof DNATranscriber[DNACodon];

export default function toRna(dna: string): RNACodon[] {
    const codons = [...dna];
    validateSequence(codons);
    const transcribedRNA = codons.map(codon => DNATranscriber[codon]);
    return transcribedRNA;
}

function validateSequence(values: string[]): asserts values is DNACodon[] {
    if (!values.every(isValidCodon)) {
        throw Error('invalid sequence');    
    }
}
function isValidCodon(value: string): value is DNACodon {
    return value in DNATranscriber;
}

You can read more about assertion signatures in the TypeScript 3.7 release notes.

What we ended up doing is stopped using the class components and created Functional Components, using useEffect() from the Hooks API for lifecycle methods. This allows you to still use makeStyles() with Lifecycle Methods without adding the complication of making Higher-Order Components. Which is much simpler.

Example:

import React, { useEffect, useState } from 'react';
import axios from 'axios';
import { Redirect } from 'react-router-dom';

import { Container, makeStyles } from '@material-ui/core';

import LogoButtonCard from '../molecules/Cards/LogoButtonCard';

const useStyles = makeStyles(theme => ({
  root: {
    display: 'flex',
    alignItems: 'center',
    justifyContent: 'center',
    margin: theme.spacing(1)
  },
  highlight: {
    backgroundColor: 'red',
  }
}));

// Highlight is a bool
const Welcome = ({highlight}) => { 
  const [userName, setUserName] = useState('');
  const [isAuthenticated, setIsAuthenticated] = useState(true);
  const classes = useStyles();

  useEffect(() => {
    axios.get('example.com/api/username/12')
         .then(res => setUserName(res.userName));
  }, []);

  if (!isAuthenticated()) {
    return <Redirect to="/" />;
  }
  return (
    <Container maxWidth={false} className={highlight ? classes.highlight : classes.root}>
      <LogoButtonCard
        buttonText="Enter"
        headerText={isAuthenticated && `Welcome, ${userName}`}
        buttonAction={login}
      />
   </Container>
   );
  }
}

export default Welcome;

Problem statement

Problem occurs when we want to import CommonJS module into ES6 module codebase.

Before these flags we had to import CommonJS modules with star (* as something) import:

// node_modules/moment/index.js
exports = moment

// index.ts file in our app
import * as moment from 'moment'
moment(); // not compliant with es6 module spec

// transpiled js (simplified):
const moment = require("moment");
moment();

We can see that * was somehow equivalent to exports variable. It worked fine, but it wasn't compliant with es6 modules spec. In spec, the namespace record in star import (moment in our case) can be only a plain object, not callable (moment() is not allowed).

Solution

With flag esModuleInterop we can import CommonJS modules in compliance with es6 modules spec. Now our import code looks like this:

// index.ts file in our app
import moment from 'moment'
moment(); // compliant with es6 module spec

// transpiled js with esModuleInterop (simplified):
const moment = __importDefault(require('moment'));
moment.default();

It works and it's perfectly valid with es6 modules spec, because moment is not namespace from star import, it's default import.

But how does it work? As you can see, because we did a default import, we called the default property on a moment object. But we didn't declare a default property on the exports object in the moment library. The key is the __importDefault function. It assigns module (exports) to the default property for CommonJS modules:

var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};

As you can see, we import es6 modules as they are, but CommonJS modules are wrapped into an object with the default key. This makes it possible to import defaults on CommonJS modules.

__importStar does the similar job - it returns untouched esModules, but translates CommonJS modules into modules with a default property:

// index.ts file in our app
import * as moment from 'moment'

// transpiled js with esModuleInterop (simplified):
const moment = __importStar(require("moment"));
// note that "moment" is now uncallable - ts will report error!

var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
    result["default"] = mod;
    return result;
};

Synthetic imports

And what about allowSyntheticDefaultImports - what is it for? Now the docs should be clear:

Allow default imports from modules with no default export. This does not affect code emit, just typechecking.

In moment typings we don't have specified default export, and we shouldn't have, because it's available only with flag esModuleInterop on. So allowSyntheticDefaultImports will not report an error if we want to import default from a third-party module which doesn't have a default export.

I'm Daniel Stenberg.

I made curl

I founded the curl project back in 1998, I wrote the initial curl version and I created libcurl. I've written more than half of all the 24,000 commits done in the source code repository up to this point in time. I'm still the lead developer of the project. To a large extent, curl is my baby.

I shipped the first version of curl as open source since I wanted to "give back" to the open source world that had given me so much code already. I had used so much open source and I wanted to be as cool as the other open source authors.

Thanks to it being open source, literally thousands of people have been able to help us out over the years and have improved the products, the documentation. the web site and just about every other detail around the project. curl and libcurl would never have become the products that they are today were they not open source. The list of contributors now surpass 1900 names and currently the list grows with a few hundred names per year.

Thanks to curl and libcurl being open source and liberally licensed, they were immediately adopted in numerous products and soon shipped by operating systems and Linux distributions everywhere thus getting a reach beyond imagination.

Thanks to them being "everywhere", available and liberally licensed they got adopted and used everywhere and by everyone. It created a defacto transfer library standard.

At an estimated six billion installations world wide, we can safely say that curl is the most widely used internet transfer library in the world. It simply would not have gone there had it not been open source. curl runs in billions of mobile phones, a billion Windows 10 installations, in a half a billion games and several hundred million TVs - and more.

Should I have released it with proprietary license instead and charged users for it? It never occured to me, and it wouldn't have worked because I would never had managed to create this kind of stellar project on my own. And projects and companies wouldn't have used it.

Why do I still work on curl?

Now, why do I and my fellow curl developers still continue to develop curl and give it away for free to the world?

1. I can't speak for my fellow project team members. We all participate in this for our own reasons.
2. I think it's still the right thing to do. I'm proud of what we've accomplished and I truly want to make the world a better place and I think curl does its little part in this.
3. There are still bugs to fix and features to add!
4. curl is free but my time is not. I still have a job and someone still has to pay someone for me to get paid every month so that I can put food on the table for my family. I charge customers and companies to help them with curl. You too can get my help for a fee, which then indirectly helps making sure that curl continues to evolve, remain free and the kick-ass product it is.
5. curl was my spare time project for twenty years before I started working with it full time. I've had great jobs and worked on awesome projects. I've been in a position of luxury where I could continue to work on curl on my spare time and keep shipping a quality product for free. My work on curl has given me friends, boosted my career and taken me to places I would not have been at otherwise.
6. I would not do it differently if I could back and do it again.

Am I proud of what we've done?

Yes. So insanely much.

But I'm not satisfied with this and I'm not just leaning back, happy with what we've done. I keep working on curl every single day, to improve, to fix bugs, to add features and to make sure curl keeps being the number one file transfer solution for the world even going forward.

We do mistakes along the way. We make the wrong decisions and sometimes we implement things in crazy ways. But to win in the end and to conquer the world is about patience and endurance and constantly going back and reconsidering previous decisions and correcting previous mistakes. To continuously iterate, polish off rough edges and gradually improve over time.

Never give in. Never stop. Fix bugs. Add features. Iterate. To the end of time.

For real?

Yeah. For real.

Do I ever get tired? Is it ever done?

Sure I get tired at times. Working on something every day for over twenty years isn't a paved downhill road. Sometimes there are obstacles. During times things are rough. Occasionally people are just as ugly and annoying as people can be.

But curl is my life's project and I have patience. I have thick skin and I don't give up easily. The tough times pass and most days are awesome. I get to hang out with awesome people and the reward is knowing that my code helps driving the Internet revolution everywhere is an ego boost above normal.

curl will never be "done" and so far I think work on curl is pretty much the most fun I can imagine. Yes, I still think so even after twenty years in the driver's seat. And as long as I think it's fun I intend to keep at it.

If you want to use tf.contrib, you need to now copy and paste the source code from github into your script/notebook. It's annoying and doesn't always work. But that's the only workaround I've found. For example, if you wanted to use tf.contrib.opt.AdamWOptimizer, you have to copy and paste from here. https://github.com/tensorflow/tensorflow/blob/590d6eef7e91a6a7392c8ffffb7b58f2e0c8bc6b/tensorflow/contrib/opt/python/training/weight_decay_optimizers.py#L32

I had the same issue. turns out that Capitalizing the "A" in "App" was the issue. Also, if you do export: export default App; make sure you export the same name "App" as well.

Starting with Android 9.0 (API level 28), cleartext support is disabled by default.

This is what you need to do to get rid of this problem if you do normal run commands properly

1. npm install
2. react-native start
3. react-native run-android

And modify your android manifest file like this.

<application
    android:name=".MainApplication"
    android:icon="@mipmap/ic_launcher"
    android:usesCleartextTraffic="true" // add this line with TRUE Value.
android:theme="@style/AppTheme">

Deleting file .condarc (eg./root/.condarc) in the user's home directory before installation, resolved the issue.

I've fixed this issue by doing, step by step:

1. remove node_modules
2. remove package-lock.json,
3. run npm --depth 9999 update
4. run npm install

I know this is not the solution to OPs post. However, this post is the first one indexed by Google when I searched for answers to this error. For this reason I feel this will benefit others.

The following error...

The POST method is not supported for this route. Supported methods: GET, HEAD.

was caused by not clearing the routing cache

php artisan route:cache

try this

import tensorflow as tf

tf.compat.v1.disable_eager_execution()

hello = tf.constant('Hello, TensorFlow!')

sess = tf.compat.v1.Session()

print(sess.run(hello))

Had the same problem. Here’s what I did & it got me the results I wanted.

1. Go to the Terminal of Visual studio code.
2. Cd to the directory of the file that has the code you wrote and ran. Let's call the program " xx.cpp "
3. Type g++ xx.cpp -o a.out (creates an executable)
4. To run your program, type ./a.out

We can apply the project deployment target to all pods target. Resolved by adding this code block below to end of your Podfile:

post_install do |installer|
  fix_deployment_target(installer)
end

def fix_deployment_target(installer)
  return if !installer
  project = installer.pods_project
  project_deployment_target = project.build_configurations.first.build_settings['IPHONEOS_DEPLOYMENT_TARGET']

  puts "Make sure all pods deployment target is #{project_deployment_target.green}"
  project.targets.each do |target|
    puts "  #{target.name}".blue
    target.build_configurations.each do |config|
      old_target = config.build_settings['IPHONEOS_DEPLOYMENT_TARGET']
      new_target = project_deployment_target
      next if old_target == new_target
      puts "    #{config.name}: #{old_target.yellow} -> #{new_target.green}"
      config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = new_target
    end
  end
end

Results log:

I installed pip3 using

python3.7 -m pip install pip

But upon using pip3 to install other dependencies, it was using python3.6.
You can check the by typing pip3 --version

Hence, I used pip3 like this (stated in one of the above answers):

python3.7 -m pip install <module>

or use it like this:

python3.7 -m pip install -r requirements.txt

I made a bash alias for later use in ~/.bashrc file as alias pip3='python3.7 -m pip'. If you use alias, don't forget to source ~/.bashrc after making the changes and saving it.

if you want to have nullable property change your interface to this:

interface Person {
  name?:string | null,
  age?:string | null,
  gender?:string | null,
  occupation?:string | null,
 }

if being undefined is not the case you can remove question marks (?) from in front of the property names.

For those newbies like me, don't assign variable to service response, meaning do

export class ShopComponent implements OnInit {
  public productsArray: Product[];

  ngOnInit() {
      this.productService.getProducts().subscribe(res => {
        this.productsArray = res;
      });
  }
}

Instead of

export class ShopComponent implements OnInit {
    public productsArray: Product[];

    ngOnInit() {
        this.productsArray = this.productService.getProducts().subscribe();
    }
}

Is canny your own function? Do you use Canny from OpenCV inside it? If yes check if you feed suitable argument for Canny - first Canny argument should meet following criteria:

• type: <type 'numpy.ndarray'>
• dtype: dtype('uint8')
• being single channel or simplyfing: grayscale, that is 2D array, i.e. its shape should be 2-tuple of ints (tuple containing exactly 2 integers)

You can check it by printing respectively

type(variable_name)
variable_name.dtype
variable_name.shape

Replace variable_name with name of variable you feed as first argument to Canny.

I had to upgrade doctrine/orm:

composer update doctrine/orm

Updating doctrine/orm (v2.5.13 => v2.6.6)

.catch(error => { throw error}) is a no-op. It results in unhandled rejection in route handler.

As explained in this answer, Express doesn't support promises, all rejections should be handled manually:

router.get("/emailfetch", authCheck, async (req, res, next) => {
  try {
  //listing messages in users mailbox 
    let emailFetch = await gmaiLHelper.getEmails(req.user._doc.profile_id , '/messages', req.user.accessToken)
    emailFetch = emailFetch.data
    res.send(emailFetch)
  } catch (err) {
    next(err);
  }
})

You should not set state (or do anything else with side effects) from within the rendering function. When using hooks, you can use useEffect for this.

The following version works:

import React, { useState, useEffect } from "react";
import ReactDOM from "react-dom";

const StateSelector = () => {
  const initialValue = [
    { id: 0, value: " --- Select a State ---" }];

  const allowedState = [
    { id: 1, value: "Alabama" },
    { id: 2, value: "Georgia" },
    { id: 3, value: "Tennessee" }
  ];

  const [stateOptions, setStateValues] = useState(initialValue);
  // initialValue.push(...allowedState);

  console.log(initialValue.length);
  // ****** BEGINNING OF CHANGE ******
  useEffect(() => {
    // Should not ever set state during rendering, so do this in useEffect instead.
    setStateValues(allowedState);
  }, []);
  // ****** END OF CHANGE ******

  return (<div>
    <label>Select a State:</label>
    <select>
      {stateOptions.map((localState, index) => (
        <option key={localState.id}>{localState.value}</option>
      ))}
    </select>
  </div>);
};

const rootElement = document.getElementById("root");
ReactDOM.render(<StateSelector />, rootElement);

and here it is in a code sandbox.

I'm assuming that you want to eventually load the list of states from some dynamic source (otherwise you could just use allowedState directly without using useState at all). If so, that api call to load the list could also go inside the useEffect block.

I had an issue in my Program.cs file. I was trying to connect with AddAzureKeyVault that had been deleted long time ago.

Conclusion:

This error could come to due to any silly error in the application. Debug step by step your application startup process.

I have the same problem after upgrading to Gradle Wrapper 5.0., Now I switch back to 4.10.3 which just released 5 December 2018 based on Gradle documentation and use Android Gradle Plugin: 3.2.1 (the latest stable version).

These answers appear to be outdated - React now has a built in type PropsWithChildren<{}>. It is defined similarly to some of the correct answers on this page:

type PropsWithChildren<P> = P & { children?: ReactNode };

Flutter uses the pubspec.yaml file, located at the root of your project, to identify assets required by an app.

Here is an example:

flutter:
  assets:
    - assets/my_icon.png
    - assets/background.png

To include all assets under a directory, specify the directory name with the / character at the end:

flutter:
  assets:
    - directory/
    - directory/subdirectory/

For more info, see https://flutter.dev/docs/development/ui/assets-and-images

Got a similar error from CircleCi's error log.

"ERROR in The Angular Compiler requires TypeScript >=3.1.1 and <3.3.0 but 3.3.3333 was found instead."

Just so you know this did not affect the Angular application, but the CircleCi error was becoming annoying. I am running Angular 7.1

I ran: $ npm i [email protected] --save-dev --save-exact to update the package-lock.json file.

Then I ran: $ npm i

After that I ran: $ npm audit fix

"This CircleCi error message" went away. So it works

I am using git+vscode+windows+vue, and after read the eslint document: https://eslint.org/docs/rules/linebreak-style

Finally fix it by:

add *.js text eol=lf to .gitattributes

then run vue-cli-service lint --fix

This is the way how I simulate constructor in functional components using the useRef hook:

function Component(props) {
    const willMount = useRef(true);
    if (willMount.current) {
        console.log('This runs only once before rendering the component.');
        willMount.current = false;        
    }

    return (<h1>Meow world!</h1>);
}

Here is the lifecycle example:

function RenderLog(props) {
    console.log('Render log: ' + props.children);
    return (<>{props.children}</>);
}

function Component(props) {

    console.log('Body');
    const [count, setCount] = useState(0);
    const willMount = useRef(true);

    if (willMount.current) {
        console.log('First time load (it runs only once)');
        setCount(2);
        willMount.current = false;
    } else {
        console.log('Repeated load');
    }

    useEffect(() => {
        console.log('Component did mount (it runs only once)');
        return () => console.log('Component will unmount');
    }, []);

    useEffect(() => {
        console.log('Component did update');
    });

    useEffect(() => {
        console.log('Component will receive props');
    }, [count]);


    return (
        <>
        <h1>{count}</h1>
        <RenderLog>{count}</RenderLog>
        </>
    );
}

[Log] Body
[Log] First time load (it runs only once)
[Log] Body
[Log] Repeated load
[Log] Render log: 2
[Log] Component did mount (it runs only once)
[Log] Component did update
[Log] Component will receive props

Of course Class components don't have Body steps, it's not possible to make 1:1 simulation due to different concepts of functions and classes.

This is another option:

export default function Counter() {

}

This answer explains what's going on behind the scenes, and the basics of how to solve this problem in any language. For reference, see the MDN docs on this topic.

You are making a request for a URL from JavaScript running on one domain (say domain-a.com) to an API running on another domain (domain-b.com). When you do that, the browser has to ask domain-b.com if it's okay to allow requests from domain-a.com. It does that with an HTTP OPTIONS request. Then, in the response, the server on domain-b.com has to give (at least) the following HTTP headers that say "Yeah, that's okay":

HTTP/1.1 204 No Content                            // or 200 OK
Access-Control-Allow-Origin: https://domain-a.com  // or * for allowing anybody
Access-Control-Allow-Methods: POST, GET, OPTIONS   // What kind of methods are allowed
...                                                // other headers

If you're in Chrome, you can see what the response looks like by pressing F12 and going to the "Network" tab to see the response the server on domain-b.com is giving.

So, back to the bare minimum from @threeve's original answer:

header := w.Header()
header.Add("Access-Control-Allow-Origin", "*")

if r.Method == "OPTIONS" {
    w.WriteHeader(http.StatusOK)
    return
}

This will allow anybody from anywhere to access this data. The other headers he's included are necessary for other reasons, but these headers are the bare minimum to get past the CORS (Cross Origin Resource Sharing) requirements.

I got the error while using react-native-config.
Got this error since I had an empty line in .env files...

FIRST_PARAM=SOMETHING

SECOND_PARAM_AFTER_EMPTY_LINE=SOMETHING

3 hours wasted, maybe will save someone time

Tried all the above But for me it was solved by

npm start

You have to define a PersistentVolume providing disc space to be consumed by the PersistentVolumeClaim.

When using storageClass Kubernetes is going to enable "Dynamic Volume Provisioning" which is not working with the local file system.

To solve your issue:

• Provide a PersistentVolume fulfilling the constraints of the claim (a size >= 100Mi)
• Remove the storageClass-line from the PersistentVolumeClaim
• Remove the StorageClass from your cluster

How do these pieces play together?

At creation of the deployment state-description it is usually known which kind (amount, speed, ...) of storage that application will need.
To make a deployment versatile you'd like to avoid a hard dependency on storage. Kubernetes' volume-abstraction allows you to provide and consume storage in a standardized way.

The PersistentVolumeClaim is used to provide a storage-constraint alongside the deployment of an application.

The PersistentVolume offers cluster-wide volume-instances ready to be consumed ("bound"). One PersistentVolume will be bound to one claim. But since multiple instances of that claim may be run on multiple nodes, that volume may be accessed by multiple nodes.

A PersistentVolume without StorageClass is considered to be static.

"Dynamic Volume Provisioning" alongside with a StorageClass allows the cluster to provision PersistentVolumes on demand. In order to make that work, the given storage provider must support provisioning - this allows the cluster to request the provisioning of a "new" PersistentVolume when an unsatisfied PersistentVolumeClaim pops up.

Example PersistentVolume

In order to find how to specify things you're best advised to take a look at the API for your Kubernetes version, so the following example is build from the API-Reference of K8S 1.17:

apiVersion: v1
kind: PersistentVolume
metadata:
  name: ckan-pv-home
  labels:
    type: local
spec:
  capacity:
    storage: 100Mi
  hostPath:
    path: "/mnt/data/ckan"

The PersistentVolumeSpec allows us to define multiple attributes. I chose a hostPath volume which maps a local directory as content for the volume. The capacity allows the resource scheduler to recognize this volume as applicable in terms of resource needs.

Additional Resources:

• Configure PersistentVolume Guide

After so much time i got it solved this way

My laravel installation path was not the same as set in the config file session.php

'domain' => env('SESSION_DOMAIN', 'example.com'),

With Homebrew and jenv:

Assumption: Mac machine and you already have installed homebrew.

Install cask:

$ brew tap caskroom/cask
$ brew tap caskroom/versions

To install latest java:

$ brew cask install java

To install java 8:

$ brew cask install java8

To install java 9:

$ brew cask install java9

If you want to install/manage multiple version then you can use 'jenv':

Install and configure jenv:

$ brew install jenv
$ echo 'export PATH="$HOME/.jenv/bin:$PATH"' >> ~/.bash_profile
$ echo 'eval "$(jenv init -)"' >> ~/.bash_profile
$ source ~/.bash_profile

Add the installed java to jenv:

$ jenv add /Library/Java/JavaVirtualMachines/jdk1.8.0_202.jdk/Contents/Home
$ jenv add /Library/Java/JavaVirtualMachines/jdk1.11.0_2.jdk/Contents/Home

To see all the installed java:

$ jenv versions

Above command will give the list of installed java:

* system (set by /Users/lyncean/.jenv/version)
1.8
1.8.0.202-ea
oracle64-1.8.0.202-ea

Configure the java version which you want to use:

$ jenv global oracle64-1.6.0.39

This is just a warning and it will probably be fixed before 2019 with plugin updates so don't worry about it. I would recommend you to use compatible versions of your plugins and gradle.

You can check your plugin version and gradle version here for better experience and performance.

https://developer.android.com/studio/releases/gradle-plugin

Try using the stable versions for a smooth and warning/error free code.

I had follow all above steps but it's not work form me finally. I was created duplicate Target and it's working fine. I have no idea what's wrong maybe cache memory issue

Remove "strictNullChecks": true from "compilerOptions" or set it to false in the tsconfig.json file of your Ng app. These errors will go away like anything and your app would compile successfully.

Disclaimer: This is just a workaround. This error appears only when the null checks are not handled properly which in any case is not a good way to get things done.

None of the listed solutions worked for me. In another thread it was pointed out that including a folder named "resources" in the project causes this error. After renaming my "resources" folder, the error went away.

In my case, the file (and the directory) that XCode was mentioning was incorrect, and the issue started occurring after a Git merge with a relatively huge branch. To fix the same, I did the following steps:

• Searched for the file in the directory system of XCode.
• Found the errored file highlighted in red (i.e, it was missing).
• Right clicked on the file and removed the file.
• I tried building my code again, and voila, it was successful.

I hope these steps help someone out.

@mohammed, this is usually attributed to the authentication plugin that your mysql database is using.

By default and for some reason, mysql 8 default plugin is auth_socket. Applications will most times expect to log in to your database using a password.

If you have not yet already changed your mysql default authentication plugin, you can do so by:
1. Log in as root to mysql
2. Run this sql command:

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password
BY 'password';  

Replace 'password' with your root password. In case your application does not log in to your database with the root user, replace the 'root' user in the above command with the user that your application uses.

Digital ocean expounds some more on this here Installing Mysql

There seems no way to have google maps api key free without credit card. To test the functionality of google map you can use it while leaving the api key field "EMPTY". It will show a message saying "For Development Purpose Only". And that way you can test google map functionality without putting billing information for google map api key.

<script src="https://maps.googleapis.com/maps/api/js?key=&callback=initMap" async defer></script>

new Buffer(number)            // Old
Buffer.alloc(number)          // New

new Buffer(string)            // Old
Buffer.from(string)           // New

new Buffer(string, encoding)  // Old
Buffer.from(string, encoding) // New

new Buffer(...arguments)      // Old
Buffer.from(...arguments)     // New

Note that Buffer.alloc() is also faster on the current Node.js versions than new Buffer(size).fill(0), which is what you would otherwise need to ensure zero-filling.

I solved the problem by changing the StartupType of the ssh-agent to Manual via Set-Service ssh-agent -StartupType Manual.

Then I was able to start the service via Start-Service ssh-agent or just ssh-agent.exe.

A Record lets you create a new type from a Union. The values in the Union are used as attributes of the new type.

For example, say I have a Union like this:

type CatNames = "miffy" | "boris" | "mordred";

Now I want to create an object that contains information about all the cats, I can create a new type using the values in the CatName Union as keys.

type CatList = Record<CatNames, {age: number}>

If I want to satisfy this CatList, I must create an object like this:

const cats:CatList = {
  miffy: { age:99 },
  boris: { age:16 },
  mordred: { age:600 }
}

You get very strong type safety:

• If I forget a cat, I get an error.
• If I add a cat that's not allowed, I get an error.
• If I later change CatNames, I get an error. This is especially useful because CatNames is likely imported from another file, and likely used in many places.

Real-world React example.

I used this recently to create a Status component. The component would receive a status prop, and then render an icon. I've simplified the code quite a lot here for illustrative purposes

I had a union like this:

type Statuses = "failed" | "complete";

I used this to create an object like this:

const icons: Record<
  Statuses,
  { iconType: IconTypes; iconColor: IconColors }
> = {
  failed: {
    iconType: "warning",
    iconColor: "red"
  },
  complete: {
    iconType: "check",
    iconColor: "green"
  };

I could then render by destructuring an element from the object into props, like so:

const Status = ({status}) => <Icon {...icons[status]} />

If the Statuses union is later extended or changed, I know my Status component will fail to compile and I'll get an error that I can fix immediately. This allows me to add additional error states to the app.

Note that the actual app had dozens of error states that were referenced in multiple places, so this type safety was extremely useful.

Try something like this:

type: application/ms-excel

/**
 *  used to get file from server
 */

this.http.get(`${environment.apiUrl}`,{
          responseType: 'arraybuffer',headers:headers} 
         ).subscribe(response => this.downLoadFile(response, "application/ms-excel"));


    /**
     * Method is use to download file.
     * @param data - Array Buffer data
     * @param type - type of the document.
     */
    downLoadFile(data: any, type: string) {
        let blob = new Blob([data], { type: type});
        let url = window.URL.createObjectURL(blob);
        let pwa = window.open(url);
        if (!pwa || pwa.closed || typeof pwa.closed == 'undefined') {
            alert( 'Please disable your Pop-up blocker and try again.');
        }
    }

On Mac remove hidden file: <FLUTTER_HOME>/bin/cache/.upgrade_lock

This error can be due to many many things.

The key here seems the hint about error reading. I see you are working on a flash drive or something similar? Try to run the install on a local folder owned by your current user.

You could also try with sudo, that might solve a permission problem if that's the case.

Another reason why it cannot read could be because it has not downloaded correctly, or saved correctly. A little problem in your network could have caused that, and the cache clean would remove the files and force a refetch but that does not solve your problem. That means it would be more on the save part, maybe it didn't save because of permissions, maybe it didn't not save correctly because it was lacking disk space...

You can simply use password field value as a pattern for confirm password field. For Example :

<div class="form-group">
 <input type="password" [(ngModel)]="userdata.password" name="password" placeholder="Password" class="form-control" required #password="ngModel" pattern="(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{8,}" />
 <div *ngIf="password.invalid && (myform.submitted || password.touched)" class="alert alert-danger">
   <div *ngIf="password.errors.required"> Password is required. </div>
   <div *ngIf="password.errors.pattern"> Must contain at least one number and one uppercase and lowercase letter, and at least 8 or more characters.</div>
 </div>
</div>

<div class="form-group">
 <input type="password" [(ngModel)]="userdata.confirmpassword" name="confirmpassword" placeholder="Confirm Password" class="form-control" required #confirmpassword="ngModel" pattern="{{ password.value }}" />
 <div *ngIf=" confirmpassword.invalid && (myform.submitted || confirmpassword.touched)" class="alert alert-danger">
   <div *ngIf="confirmpassword.errors.required"> Confirm password is required. </div>
   <div *ngIf="confirmpassword.errors.pattern"> Password & Confirm Password does not match.</div>
 </div>
</div>

28.0.0 is the final version of support libraries. Android has migrated to AndroidX. To use the latest android libraries, Migrating to AndroidX

Edit: Versions 28.0.0-rc02 and 28.0.0 are now available.

I don't see any 28.0 version on Google Maven. Only 28.0.0-alpha1 and 28.0.0-alpha3. Just change it to either of those or how it was previously, i.e., with .+ which just means any version under 28 major release.

For an alpha appcompat release 28.+ makes more sense.

The provider is bundled with PowerShell>=6.0.

If all you need is a way to install a package from a file, just grab the .msi installer for the latest version from the github releases page, copy it over to the machine, install it and use it.

What fixed it for me was plugging my iPhone and allowing it as a simulator destination. Doing so required my to register my iPhone in Apple Dev account and once that was done and I ran my project from Xcode on my iPhone everything fixed itself.

1. Connect your iPhone to your Mac
2. Xcode>Window>Devices & Simulators
3. Add new under Devices and make sure "show are run destination" is ticked
4. Build project and run it on your iPhone

Uninstall tensorflow and install only tensorflow-gpu; this should be sufficient. By default, this should run on the GPU and not the CPU. However, further you can do the following to specify which GPU you want it to run on.

If you have an nvidia GPU, find out your GPU id using the command nvidia-smi on the terminal. After that, add these lines in your script:

os.environ["CUDA_DEVICE_ORDER"] = "PCI_BUS_ID"
os.environ["CUDA_VISIBLE_DEVICES"] = #GPU_ID from earlier

config = tf.ConfigProto()
sess = tf.Session(config=config)

For the functions where you wish to use GPUs, write something like the following:

with tf.device(tf.DeviceSpec(device_type="GPU", device_index=gpu_id)):

In my case what removed this message was (After updating everything) deleting the emulator and creating a new one. Manually updating the adb didn't solved this for. Nor updating via the Android studio Gui. In my case it seems that since the emulator was created with "old" components it keep showing the message. I had three emulators, just deleted them all and created a new one. For my surprise when it started the message was no more.

Cannot tell if performance is better or not. The message just didn't came up. Also I have everything updated to the latest (emulators and sdk).

It's generally recommended to use a version manager like rbenv or rvm. Otherwise, installed Gems will be available as root for other users.

If you know what you're doing, you can use sudo gem install.

You are calling:

JSON.parse(scatterSeries)

But when you defined scatterSeries, you said:

var scatterSeries = []; 

When you try to parse it as JSON it is converted to a string (""), which is empty, so you reach the end of the string before having any of the possible content of a JSON text.

scatterSeries is not JSON. Do not try to parse it as JSON.

data is not JSON either (getJSON will parse it as JSON automatically).

ch is JSON … but shouldn't be. You should just create a plain object in the first place:

var ch = {
    "name": "graphe1",
    "items": data.results[1]
};

scatterSeries.push(ch);

In short, for what you are doing, you shouldn't have JSON.parse anywhere in your code. The only place it should be is in the jQuery library itself.

I found the solution: Go to the link below and submit your application.

Play Protect Appeals Submission Form

After a few days, the problem will be fixed

Browser have cross domain security at client side which verify that server allowed to fetch data from your domain. If Access-Control-Allow-Origin not available in response header, browser disallow to use response in your JavaScript code and throw exception at network level. You need to configure cors at your server side.

You can fetch request using mode: 'cors'. In this situation browser will not throw execption for cross domain, but browser will not give response in your javascript function.

So in both condition you need to configure cors in your server or you need to use custom proxy server.

In a Chrome extension, you can use

chrome.webRequest.onHeadersReceived.addListener

to rewrite the server response headers. You can either replace an existing header or add an additional header. This is the header you want:

Access-Control-Allow-Origin: *

https://developers.chrome.com/extensions/webRequest#event-onHeadersReceived

I was stuck on CORB issues, and this fixed it for me.

* Uses proxy env variable http_proxy == 'https://proxy.in.tum.de:8080'   
                                         ^^^^^

The https:// is wrong, it should be http://. The proxy itself should be accessed by HTTP and not HTTPS even though the target URL is HTTPS. The proxy will nevertheless properly handle HTTPS connection and keep the end-to-end encryption. See HTTP CONNECT method for details how this is done.

Well, in my case the problem had a different cause, the Windows path Length Check this.

I was installing a library on a virtualenv which made the path get longer. As the library was installed, it created some files under site-packages. This made the path exceed Windows limit throwing this error.

Hope it helps someone =)

1.Added these codes to your app/build.gradle:

configurations.all {
   resolutionStrategy.force 'com.android.support:support-v4:26.1.0' // the lib is old dependencies version;       
}

2.Modified sdk and tools version to 28:

compileSdkVersion 28
buildToolsVersion '28.0.3'
targetSdkVersion  28

2.In your AndroidManifest.xml file, you should add two line:

<application
    android:name=".YourApplication"
    android:appComponentFactory="anystrings be placeholder"
    tools:replace="android:appComponentFactory"
    android:icon="@drawable/icon"
    android:label="@string/app_name"
    android:largeHeap="true"
    android:theme="@style/Theme.AppCompat.Light.NoActionBar">

Thanks for the answer @Carlos Santiago : Android design support library for API 28 (P) not working

In my case cleaning deprived data and build settings(in this order) , and restarting Xcode and Simulator helped.

I tried to do Solution -> Open target -> Build phases > Copy Bundle Resources , but it appeared there again. Cleaning deprived data helped. in the error it shows where is the duplicate, in my case it said it was in my app bundle and in deprived data.

At first check the type of columns which you want to merge. You will see one of them is string where other one is int. Then convert it to int as following code:

df["something"] = df["something"].astype(int)

merged = df.merge[df1, on="something"]

as per npm community

sudo npm cache clean --force --unsafe-perm

and then npm install goes normally.

source: npm community-unhandled-rejection-error-eacces-permission-denied

In my case I simply remove

implementation "com.google.android.gms:play-services-ads:16.0.0

and add firebase ads dependencies

implementation 'com.google.firebase:firebase-ads:17.1.2'

If you are looking for the solution of following error

ERROR: Could not install packages due to an EnvironmentError: [WinError 5] Acces s is denied: 'D:\softwares\spider\Lib\site-packages\libmysql.dll' Consider using the --user option or check the permissions.

The solution: You should add --user if you find an access-denied error.

 pip install --user mysql-connector-python

paste this command into cmd and solve your problem

tl;dr:

concat and append currently sort the non-concatenation index (e.g. columns if you're adding rows) if the columns don't match. In pandas 0.23 this started generating a warning; pass the parameter sort=True to silence it. In the future the default will change to not sort, so it's best to specify either sort=True or False now, or better yet ensure that your non-concatenation indices match.

The warning is new in pandas 0.23.0:

In a future version of pandas pandas.concat() and DataFrame.append() will no longer sort the non-concatenation axis when it is not already aligned. The current behavior is the same as the previous (sorting), but now a warning is issued when sort is not specified and the non-concatenation axis is not aligned, link.

More information from linked very old github issue, comment by smcinerney :

When concat'ing DataFrames, the column names get alphanumerically sorted if there are any differences between them. If they're identical across DataFrames, they don't get sorted.

This sort is undocumented and unwanted. Certainly the default behavior should be no-sort.

After some time the parameter sort was implemented in pandas.concat and DataFrame.append:

sort : boolean, default None

Sort non-concatenation axis if it is not already aligned when join is 'outer'. The current default of sorting is deprecated and will change to not-sorting in a future version of pandas.

Explicitly pass sort=True to silence the warning and sort. Explicitly pass sort=False to silence the warning and not sort.

This has no effect when join='inner', which already preserves the order of the non-concatenation axis.

So if both DataFrames have the same columns in the same order, there is no warning and no sorting:

df1 = pd.DataFrame({"a": [1, 2], "b": [0, 8]}, columns=['a', 'b'])
df2 = pd.DataFrame({"a": [4, 5], "b": [7, 3]}, columns=['a', 'b'])

print (pd.concat([df1, df2]))
   a  b
0  1  0
1  2  8
0  4  7
1  5  3

df1 = pd.DataFrame({"a": [1, 2], "b": [0, 8]}, columns=['b', 'a'])
df2 = pd.DataFrame({"a": [4, 5], "b": [7, 3]}, columns=['b', 'a'])

print (pd.concat([df1, df2]))
   b  a
0  0  1
1  8  2
0  7  4
1  3  5

But if the DataFrames have different columns, or the same columns in a different order, pandas returns a warning if no parameter sort is explicitly set (sort=None is the default value):

df1 = pd.DataFrame({"a": [1, 2], "b": [0, 8]}, columns=['b', 'a'])
df2 = pd.DataFrame({"a": [4, 5], "b": [7, 3]}, columns=['a', 'b'])

print (pd.concat([df1, df2]))

FutureWarning: Sorting because non-concatenation axis is not aligned.

   a  b
0  1  0
1  2  8
0  4  7
1  5  3

print (pd.concat([df1, df2], sort=True))
   a  b
0  1  0
1  2  8
0  4  7
1  5  3

print (pd.concat([df1, df2], sort=False))
   b  a
0  0  1
1  8  2
0  7  4
1  3  5

If the DataFrames have different columns, but the first columns are aligned - they will be correctly assigned to each other (columns a and b from df1 with a and b from df2 in the example below) because they exist in both. For other columns that exist in one but not both DataFrames, missing values are created.

Lastly, if you pass sort=True, columns are sorted alphanumerically. If sort=False and the second DafaFrame has columns that are not in the first, they are appended to the end with no sorting:

df1 = pd.DataFrame({"a": [1, 2], "b": [0, 8], 'e':[5, 0]}, 
                    columns=['b', 'a','e'])
df2 = pd.DataFrame({"a": [4, 5], "b": [7, 3], 'c':[2, 8], 'd':[7, 0]}, 
                    columns=['c','b','a','d'])

print (pd.concat([df1, df2]))

FutureWarning: Sorting because non-concatenation axis is not aligned.

   a  b    c    d    e
0  1  0  NaN  NaN  5.0
1  2  8  NaN  NaN  0.0
0  4  7  2.0  7.0  NaN
1  5  3  8.0  0.0  NaN

print (pd.concat([df1, df2], sort=True))
   a  b    c    d    e
0  1  0  NaN  NaN  5.0
1  2  8  NaN  NaN  0.0
0  4  7  2.0  7.0  NaN
1  5  3  8.0  0.0  NaN

print (pd.concat([df1, df2], sort=False))

   b  a    e    c    d
0  0  1  5.0  NaN  NaN
1  8  2  0.0  NaN  NaN
0  7  4  NaN  2.0  7.0
1  3  5  NaN  8.0  0.0

In your code:

placement_by_video_summary = placement_by_video_summary.drop(placement_by_video_summary_new.index)
                                                       .append(placement_by_video_summary_new, sort=True)
                                                       .sort_index()

We were using:

mongoose.connect("mongodb://localhost/mean-course").then(
  (res) => {
   console.log("Connected to Database Successfully.")
  }
).catch(() => {
  console.log("Connection to database failed.");
});

? This gives a URL parser error

The correct syntax is:

mongoose.connect("mongodb://localhost:27017/mean-course" , { useNewUrlParser: true }).then(
  (res) => {
   console.log("Connected to Database Successfully.")
  }
).catch(() => {
  console.log("Connection to database failed.");
});

I ran into this problem on NetBeans when working with a ready-made project from this Murach JSP book. The problem was caused by using the 5.1.23 Connector J with a MySQL 8.0.13 Database. I needed to replace the old driver with a new one. After downloading the Connector J, this took three steps.

How to replace NetBeans project Connector J:

1. Download the current Connector J from here. Then copy it in your OS.

2. In NetBeans, click on the Files tab which is next to the Projects tab. Find the mysql-connector-java-5.1.23.jar or whatever old connector you have. Delete this old connector. Paste in the new Connector.

3. Click on the Projects tab. Navigate to the Libraries folder. Delete the old mysql connector. Right click on the Libraries folder. Select Add Jar / Folder. Navigate to the location where you put the new connector, and select open.

4. In the Project tab, right click on the project. Select Resolve Data Sources on the bottom of the popup menu. Click on Add Connection. At this point NetBeans skips forward and assumes you want to use the old connector. Click the Back button to get back to the skipped window. Remove the old connector, and add the new connector. Click Next and Test Connection to make sure it works.

For video reference, I found this to be useful. For IntelliJ IDEA, I found this to be useful.

This also can be happened due to wrong user name or password. As solutions I've added allowPublicKeyRetrieval=true&useSSL=false part but still I got error then I checked the password and it was wrong.

Steps to get this error ;

1. Clone a repo (for eg take name as xyz)in a folder
2. Not try to clone again in the same folder . Even after deleting the folder manually this error will come since deleting folder doesn't delete git info .

Solution : rm -rf "name of repo folder which in out case is xyz" . So

rm -rf xyz

Sometimes a dependency added with ng add will add more than one package, typing npm uninstall lib1 lib2 could be error prone and slow, so just remove the not needed libraries from package.json and run npm i

My Specs:

mysql --version
mysql  Ver 8.0.16 for Linux on x86_64 (MySQL Community Server - GPL)

What worked for me:

mysql> CREATE USER 'username'@'localhost' IDENTIFIED BY 'desired_password';
mysql> GRANT ALL PRIVILEGES ON db_name.* TO 'username'@'localhost' WITH GRANT OPTION;

Response in both queries:

Query OK, O rows affected (0.10 sec*)

N.B: I created a database (db_name) earlier and was creating a user credential with all privileges granted to all tables in the DB in place of using the default root user which I read somewhere is a best practice.

Angular no longer supports --env instead you have to use

ng serve -c dev

for development environment and,

ng serve -c prod 

for production.

NOTE: -c or --configuration

A better solution is explained in the official explanation. I left the answer I have given before under the horizontal line.

According to the solution there:

Use an external tag and write down the following code below in the top-level build.gradle file. You're going to change the version to a variable rather than a static version number.

ext {
    compileSdkVersion = 26
    supportLibVersion = "27.1.1"
}

Change the static version numbers in your app-level build.gradle file, the one has (Module: app) near.

android {
    compileSdkVersion rootProject.ext.compileSdkVersion // It was 26 for example
    // the below lines will stay
}

// here there are some other stuff maybe

dependencies {
    implementation "com.android.support:appcompat-v7:${rootProject.ext.supportLibVersion}"
    // the below lines will stay
}

Sync your project and you'll get no errors.

You don't need to add anything to Gradle scripts. Install the necessary SDKs and the problem will be solved.

In your case, install the libraries below from Preferences > Android SDK or Tools > Android > SDK Manager

I ran the following command ALTER USER 'root' @ 'localhost' identified with mysql_native_password BY 'root123'; in the command line and finally restart MySQL in local services.

Enable "resolveJsonModule": true in tsconfig.json file and implement as below code, it's work for me:

const config = require('./config.json');

I tried using the try{}catch{} method but it did not work for me. However, when I switched to using .then(...).catch(...), the AxiosError is caught correctly that I can play around with. When I try the former when putting a breakpoint, it does not allow me to see the AxiosError and instead, says to me that the caught error is undefined, which is also what eventually gets displayed in the UI.

Not sure why this happens I find it very trivial. Either way due to this, I suggest using the conventional .then(...).catch(...) method mentioned above to avoid throwing undefined errors to the user.

Type Chrome://flags in the address-bar

Search: Autoplay

Autoplay Policy

Policy used when deciding if audio or video is allowed to autoplay.

– Mac, Windows, Linux, Chrome OS, Android

Set this to "No user gesture is required"

Relaunch Chrome and you don't have to change any code

Deleting Bin and Obj folders worked for me.

The angular-split component is not supported in Angular 6, so to make it compatible with Angular 6 install following dependency in your application

To get this working until it's updated use:

"dependencies": {
"angular-split": "1.0.0-rc.3",
"rxjs": "^6.2.2",
    "rxjs-compat": "^6.2.2",
}

Just install the sdk command line tool(latest) the below in android studio.

You can also get timeout errors based on silly typos. e.g This seemingly innocuous mistake:

describe('Something', () => {
  it('Should do something', () => {
    expect(1).toEqual(1)
  })

  it('Should do nothing', something_that_does_not_exist => {
    expect(1).toEqual(1)
  })
})

Produces the following error:

FAIL src/TestNothing.spec.js (5.427s)
  ? Something › Should do nothing

    Timeout - Async callback was not invoked within the 5000ms timeout specified by jest.setTimeout.
      
      at node_modules/jest-jasmine2/build/queue_runner.js:68:21
      at Timeout.callback [as _onTimeout] (node_modules/jsdom/lib/jsdom/browser/Window.js:678:19)

Whilst the code sample posted doesn't suffer from this it might be a cause of failures elsewhere. Also note that I'm not setting a timeout for anything anywhere - either here or in the config. The 5000ms is just the default setting.

I had the same issue and I fixed it this way:

1. Deleted all projects from eclipse, not from the computer.
2. Created a new project and as soon as you write the name of your project, you get another window, in which is written: "Create module-info.java". I just clicked "don't create".
3. Created a package. Let us call the package mywork.
4. Created a Java class inside the package myWork. Let us call the class HelloWorld.
5. I run the file normally and it was working fine.

Note: First, make sure that Java is running properly using the CMD command in that way you will understand the problem is on eclipse and not on JDK.

Yes, await / async was a great concept, but the implementation is completely broken.

For whatever reason, the await keyword has been implemented such that it can only be used within an async method. This is in fact a bug, though you will not see it referred to as such anywhere but right here. The fix for this bug would be to implement the await keyword such that it can only be used TO CALL an async function, regardless of whether the calling function is itself synchronous or asynchronous.

Due to this bug, if you use await to call a real asynchronous function somewhere in your code, then ALL of your functions must be marked as async and ALL of your function calls must use await.

This essentially means that you must add the overhead of promises to all of the functions in your entire application, most of which are not and never will be asynchronous.

If you actually think about it, using await in a function should require the function containing the await keyword TO NOT BE ASYNC - this is because the await keyword is going to pause processing in the function where the await keyword is found. If processing in that function is paused, then it is definitely NOT asynchronous.

So, to the developers of javascript and ECMAScript - please fix the await/async implementation as follows...

• await can only be used to CALL async functions.
• await can appear in any kind of function, synchronous or asynchronous.
• Change the error message from "await is only valid in async function" to "await can only be used to call async functions".

Indeed, in the latest version of Spring Data, findOne returns an optional. If you want to retrieve the object from the Optional, you can simply use get() on the Optional. First of all though, a repository should return the optional to a service, which then handles the case in which the optional is empty. afterwards, the service should return the object to the controller.

To select a device you must first start both, android studio and your virtual device. Then visual studio code will display that virtual device as an option.

Here is another way to solve this problem under windows, if you use Wampserver. Indeed at the level of wampserver, there are two php.ini files, that of PHP, which one can find in the location C: \ wamp64 \ bin \ php \ phpx.xx \ php.ini and that of Apache , which can be found at location C: \ wamp64 \ bin \ apache \ apachex.xx \ bin \ php.ini. Both of these files have the memory_limit parameter. So to be sure to solve this problem, it is better to set the memory_limit = -1 parameter in both files at once.

This was a pain in the ass for me! Especially after updating to Android Studio 3.2.1 and Gradle 4.6 (for Gradle developers).

I think there is more than one factor that could cause such a build exception. For me, I had the following lines of code in my gradle.properties file (using SDK version 27):

android.useAndroidX=true
android.enableJetifier=true

AndroidX is the alternative to Android's default Support Library and should be used when compiling and targeting SDK version 28 (API 28). Before the updating Android Studio and Gradle, I had added the lines above in preparation to eventually fully migrate to AndroidX to use SDK version 28 and the build ran successfully. It was only after the update that I received an error similar to that above:

error: resource android:attr/fontVariationSettings not found

Hope this helps.

You can change the encryption of the user's password by altering the user with below Alter command :

ALTER USER 'username'@'ip_address' IDENTIFIED WITH mysql_native_password BY 'password';

OR

We can avoid this error by make it work with old password plugin:

First change the authentication plugin in my.cnf file for Linux / my.ini file in Windows:

[mysqld]

default_authentication_plugin=mysql_native_password

Restart the mysql server to take the changes in affect and try connecting via MySQL with any mysql client.

If still unable to connect and getting the below error:

Unable to load plugin 'caching_sha2_password'

It means your user needs the above plugin. So try creating new user with create user or grant command after changing default plugin. then new user need the native plugin and you will able to connect MySQL.

Thanks

Use the latest supportLibrary, version 27.1.1 to solve the problem. worked for me. (many bug fixes included - see changelog)

This helped my project to build, add this to module build.gradle file:

compileOptions {
        sourceCompatibility 1.8
        targetCompatibility 1.8
    }
    tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).all {
        kotlinOptions {
            jvmTarget = "1.8"
        }
    }

A simple restart fixed it for me. I'm not sure what was the problem since I work with so much software but I have a feeling it was the VPN software or maybe the fact I put my laptop in sleep a lot and some file was corrupted. I really don't know but the restart fixed it.

# Method 1
f = open("Path/To/Your/File.txt", "w")   # 'r' for reading and 'w' for writing
f.write("Hello World from " + f.name)    # Write inside file 
f.close()                                # Close file 

# Method 2
with open("Path/To/Your/File.txt", "w") as f:   # Opens file and casts as f 
    f.write("Hello World form " + f.name)       # Writing
    # File closed automatically

There are many more methods but these two are most common. Hope this helped!

To fix that issue, I searched where is my docker and docker-compose installed. In my case, docker was installed in /usr/bin/docker and docker-compose was installed in /usr/local/bin/docker-compose path. Then, I write this in my terminal:

To docker:

sudo chmod +x /usr/bin/docker

To docker-compose:

sudo chmod +x /usr/local/bin/docker-compose

Now I don't need write in my commands docker the word sudo

/***********************************************************************/

ERRATA:

The best solution of this issue was commented by @mkasberg. I quote comment:

That might work, you might run into issues down the road. Also, it's a security vulnerability. You'd be better off just adding yourself to the docker group, as the docs say. sudo groupadd docker, sudo usermod -aG docker $USER. Docs: https://docs.docker.com/install/linux/linux-postinstall/

Thanks a lot!

If you have a standard code signing certificate, some time will be needed for your application to build trust. Microsoft affirms that an Extended Validation (EV) Code Signing Certificate allows us to skip this period of trust-building. According to Microsoft, extended validation certificates allow the developer to immediately establish a reputation with SmartScreen. Otherwise, the users will see a warning like "Windows Defender SmartScreen prevented an unrecognized app from starting. Running this app might put your PC at risk.", with the two buttons: "Run anyway" and "Don't run".

Another Microsoft resource states the following (quote): "Although not required, programs signed by an EV code signing certificate can immediately establish a reputation with SmartScreen reputation services even if no prior reputation exists for that file or publisher. EV code signing certificates also have a unique identifier which makes it easier to maintain reputation across certificate renewals."

My experience is as follows. Since 2005, we have been using regular (non-EV) code signing certificates to sign .MSI, .EXE and .DLL files with time stamps, and there has never been a problem with SmartScreen until 2018, when there was just one case when it took 3 days for a beta version of our application to build trust since we have released it to beta testers, and it was in the middle of certificate validity period. I don't know what SmartScreen might not like in that specific version of our application, but there have been no SmartScreen complaints since then. Therefore, if your certificate is a non-EV, it is a signed application (such as an .MSI file) that will build trust over time, not a certificate. For example, a certificate can be issued a few months ago and used to sign many files, but for each signed file you publish, it may take a few days for SmartScreen to stop complaining about the file after publishing, as was in our case in 2018.

As a conclusion, to avoid the warning completely, i.e. prevent it from happening even suddenly, you need an Extended Validation (EV) code signing certificate.

please consider .editorconfig overwrites everything, use:

[*]
quote_type = single

if you are using anaconda, python 3.7 is installed by default, so you have to downgrade it to 3.6:

conda install python=3.6

then:

pip install tensorflow

it worked for me in Ubuntu.

Run this command:

$ echo "$(dirname $(which flutter))/cache/dart-sdk"

You'll get something like:

/home/lex/opt/flutter/bin/cache/dart-sdk

Enter that value as your Dart SDK path.

It can also occur if you leave an element with a null or empty attribute in your XML layout file else if your java file's path of objects creation such as specifying improper ID for the object

here frombottom= AnimationUtils.loadAnimation(this,R.anim); in which anim. the id or filename is left blank can lead to such problem.

ReactJS: Maximum update depth exceeded error

inputDigit(digit){
  this.setState({
    displayValue: String(digit)
  })

<button type="button"onClick={this.inputDigit(0)}>

why that?

<button type="button"onClick={() => this.inputDigit(1)}>1</button>

The function onDigit sets the state, which causes a rerender, which causes onDigit to fire because that’s the value you’re setting as onClick which causes the state to be set which causes a rerender, which causes onDigit to fire because that’s the value you’re… Etc

In my case i forgot to add the () after the function name inside the render function of a react component

public render() {
       let ctrl = (
           <>
                <div className="aaa">
                    {this.renderView}
                </div>
            </>
       ); 

       return ctrl;
    };


    private renderView() : JSX.Element {
        // some html
    };

Changing the render method, as it states in the error message to

        <div className="aaa">
            {this.renderView()}
        </div>

fixed the problem

You will get required packages from "https://api.nuget.org/v3/index.json". Add this in Package Resources. Also make sure other packages are unchecked for time being. And Click Restore Nuget Package on Solution Explorer

When you want to run an executable file from the Command prompt, (cmd.exe), or a batch file, it will:

• Search the current working directory for the executable file.
• Search all locations specified in the %PATH% environment variable for the executable file.

If the file isn't found in either of those options you will need to either:

1. Specify the location of your executable.
2. Change the working directory to that which holds the executable.
3. Add the location to %PATH% by apending it, (recommended only with extreme caution).

You can see which locations are specified in %PATH% from the Command prompt, Echo %Path%.

Because of your reported error we can assume that Mobile.exe is not in the current directory or in a location specified within the %Path% variable, so you need to use 1., 2. or 3..

Examples for 1.

C:\directory_path_without_spaces\My-App\Mobile.exe

or:

"C:\directory path with spaces\My-App\Mobile.exe"

Alternatively you may try:

Start C:\directory_path_without_spaces\My-App\Mobile.exe

or

Start "" "C:\directory path with spaces\My-App\Mobile.exe"

Where "" is an empty title, (you can optionally add a string between those doublequotes).

Examples for 2.

CD /D C:\directory_path_without_spaces\My-App
Mobile.exe

or

CD /D "C:\directory path with spaces\My-App"
Mobile.exe

You could also use the /D option with Start to change the working directory for the executable to be run by the start command

Start /D C:\directory_path_without_spaces\My-App Mobile.exe

or

Start "" /D "C:\directory path with spaces\My-App" Mobile.exe

!pwd
import os
os.chdir('/content/drive/My Drive/Colab Notebooks/Data')
!pwd

view this answer for detailed explaination https://stackoverflow.com/a/61636734/11535267

Rule number one of interviews; never say impossible.

No need for hidden character trickery.

window.__defineGetter__( 'a', function(){_x000D_
    if( typeof i !== 'number' ){_x000D_
        // define i in the global namespace so that it's not lost after this function runs_x000D_
        i = 0;_x000D_
    }_x000D_
    return ++i;_x000D_
});_x000D_
_x000D_
if( a == 1 && a == 2 && a == 3 ){_x000D_
    alert( 'Oh dear, what have we done?' );_x000D_
}

How I solved this. For Node.js applications, you need to set your **public** folder configuration.

// Express js
app.use(express.static(__dirname + '/public'));

Otherwise, you need to do like href="public/css/style.css".

<link href="public/assets/css/custom.css">
<script src="public/assets/js/scripts.js"></script>

Note: It will work for http://localhost:3000/public/assets/css/custom.css. But couldn't work after build. You need to set app.use(express.static(__dirname + '/public')); for Express

The following works for me in Firefox and Chrome. In Firefox it even works from file:///

models/course.js

export function Course() {
    this.id = '';
    this.name = '';
};

models/student.js

import { Course } from './course.js';

export function Student() {
    this.firstName = '';
    this.lastName = '';
    this.course = new Course();
};

index.html

<div id="myDiv">
</div>
<script type="module">
    import { Student } from './models/student.js';

    window.onload = function () {
        var x = new Student();
        x.course.id = 1;
        document.getElementById('myDiv').innerHTML = x.course.id;
    }
</script>

In some cases for some security reasons the unit would be marked as masked. This state is much stronger than being disabled in which you cannot even start the service manually.

to check this, run the following command:

    systemctl list-unit-files | grep mongod

if you find out something like this:

    mongod.service                         masked

then you can unmask the unit by:

    sudo systemctl unmask mongod

then you may want to start the service:

    sudo systemctl start mongod

and to enable auto-start during system boot:

    sudo systemctl enable mongod

However if mongodb did not start again or was not masked at all, you have the option to reinstall it this way:

    sudo apt-get --purge mongo*
    sudo apt-get install mongodb-org

thanks to @jehanzeb-malik

1. I uninstalled my Node.js and showed hidden files.

2. Then, I went to C:\Users\yourpcname\AppData\Roaming\ and deleted the npm and npm-cache folders.

3. Finally, I installed a new version of Node.js.

Go to Windows Credential Manager (press Windows Key and type 'credential') to edit the git entry under Windows Credentials. Replace old password with the new one.

Use .map without return in simple way. Also start using let and const instead of var because let and const is more recommended

const rockets = [_x000D_
    { country:'Russia', launches:32 },_x000D_
    { country:'US', launches:23 },_x000D_
    { country:'China', launches:16 },_x000D_
    { country:'Europe(ESA)', launches:7 },_x000D_
    { country:'India', launches:4 },_x000D_
    { country:'Japan', launches:3 }_x000D_
];_x000D_
_x000D_
const launchOptimistic = rockets.map(elem => (_x000D_
  {_x000D_
    country: elem.country,_x000D_
    launches: elem.launches+10_x000D_
  } _x000D_
));_x000D_
_x000D_
console.log(launchOptimistic);

I had the same issue.

Turned out my timeout was set too low. I changed it to 30ms thinking it was 30sec. I set it back to 0 and it started working again.

It happens sometimes when you try to run without closing the node server, in which the previous app was running, so try restarting React.To do so, just run the following commands:

1. To kill current processes
killall node -9 

2. To Start React  Native
react-native start 

3. Then Run android
react-native run-android

None of the solutions worked for me. I ended up downloading a different emulator image.

First I had arm64-v8a, which was giving this error. I download armeabi-v7a, which worked fine.

Unfortunately I was not able to install HAXM accelerator as organization's softwares were blocking the installation. Hence, had to go with arm.

In my case, the problem was that the format of the FormData append operation needed the additional "options" parameter filling in to define the filename thus:

var formData = new FormData();
formData.append(fieldName, fileBuffer, {filename: originalName});

I'm seeing a lot of complaints that axios is broken, but in fact the root cause is not using form-data properly. My versions are:

"axios": "^0.21.1",
"form-data": "^3.0.0",

On the receiving end I am processing this with multer, and the original problem was that the file array was not being filled - I was always getting back a request with no files parsed from the stream.

In addition, it was necessary to pass the form-data header set in the axios request:

        const response = await axios.post(getBackendURL() + '/api/Documents/' + userId + '/createDocument', formData, {
        headers: formData.getHeaders()
    });

My entire function looks like this:

async function uploadDocumentTransaction(userId, fileBuffer, fieldName, originalName) {
    var formData = new FormData();
    formData.append(fieldName, fileBuffer, {filename: originalName});

    try {
        const response = await axios.post(
            getBackendURL() + '/api/Documents/' + userId + '/createDocument',
            formData,
            {
                headers: formData.getHeaders()
            }
        );

        return response;
    } catch (err) {
        // error handling
    }
}

The value of the "fieldName" is not significant, unless you have some receiving end processing that needs it.

For those who are using python 2.7, python2.7 don't support django 2 so you can't install django.urls. If you are already using python 3.6 so you need to upgrade django to latest version which is greater than 2.

• On PowerShell

  pip install -U django

• Verification

>

PS C:\Users\xyz> python
Python 3.6.6 |Anaconda, Inc.| (default, Jul 25 2018, 15:27:00) [MSC v.1910 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.

>>> from django.urls import path
>>>

As next prompt came, it means it is installed now and ready to use.

Use the following Code:-

../css/main.css

Note: The "../" is shorthand for "The containing directory", or "Up one directory".

If you don't know the previous folder this will be very helpful..

For me these two files I have deleted by mistake, after undo these two files and get added in my changes, I was able to commit my changes to git.

Refreshing gradle dependencies works for me: Right click over the project -> Gradle -> Refresh Gradle Project.

OK It's A Wrong Approach But If You Use it Like This :

compile "com.android.support:appcompat-v7:+"

Android Studio Will Use The Last Version It Has.

In My Case Was 26.0.0alpha-1.

You Can See The Used Version In External Libraries (In The Project View).

I Tried Everything But Couldn't Use Anything Above 26.0.0alpha-1, It Seems My IP Is Blocked By Google. Any Idea? Comment

For Debian Stretch (Debian version 9), nodejs does not include npm, and to install it as a separate package, you have to enable stretch-backports.

echo 'deb http://deb.debian.org/debian stretch-backports main' |
sudo tee /etc/apt/sources.list.d/stretch-backports.list
apt-get update -y
apt-get -t stretch-backports install -y npm

In Buster (Debian 10), npm is a regular package, so going forward, this should just work. But some of us will still be stuck partially on Stretch boxes for some time to come.

Make the header looks like this for HttpClient in NG5:

let httpOptions = {
      headers: new HttpHeaders({
        'Content-Type': 'application/json',
        'apikey': this.apikey,
        'appkey': this.appkey,
      }),
      params: new HttpParams().set('program_id', this.program_id)
    };

You will be able to make api call with your localhost url, it works for me ..

• Please never forget your params columnd in the header: such as params: new HttpParams().set('program_id', this.program_id)

When I used policy before I set the default authentication scheme into it as well. I had modified the DefaultPolicy so it was slightly different. However the same should work for add policy as well.

services.AddAuthorization(options =>
        {
            options.AddPolicy(DefaultAuthorizedPolicy, policy =>
            {
                policy.Requirements.Add(new TokenAuthRequirement());
                policy.AuthenticationSchemes = new List<string>()
                                {
                                    CookieAuthenticationDefaults.AuthenticationScheme
                                }
            });
        });

Do take into consideration that by Default AuthenticationSchemes property uses a read only list. I think it would be better to implement that instead of List as well.

My error was solved by uninstalling all java updates and java from control panel and reinstalling JDK

just click file in your android studio then click Sync Project with Gradle Files..

if it won't work, click Build click Clean Project.

it always work for me

People's answer here about having the key from the computer is generated are accurate. But if things are still failing, try restarting Xcode after installing a cert

I am using Android Studio 3.0 and was facing the same problem. I add this to my gradle:

multiDexEnabled true

And it worked!

Example

android {
    compileSdkVersion 27
    buildToolsVersion '27.0.1'
    defaultConfig {
        applicationId "com.xx.xxx"
        minSdkVersion 15
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        multiDexEnabled true //Add this
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            shrinkResources true
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

And clean the project.

use this command php artisan migrate --path=/database/migrations/my_migration.php it worked for me..

Open app/build.gradle file

Change buildToolsVersion to buildToolsVersion "26.0.2"

change compile 'com.android.support:appcompat to compile 'com.android.support:appcompat-v7:26.0.2'

Push object into your array. Try this:

export class FormComponent implements OnInit {
    name: string;
    empoloyeeID : number;
    empList: Array<{name: string, empoloyeeID: number}> = []; 
    constructor() {}
    ngOnInit() {}
    onEmpCreate(){
        console.log(this.name,this.empoloyeeID);
        this.empList.push({ name: this.name, empoloyeeID: this.empoloyeeID });
        this.name = "";
        this.empoloyeeID = 0;
    }
}

In my case changing firebase library version from 2.6.0 to 2.4.2 fixed the issue

Try using anaconda. I had the same error. One lone option was to build tensorflow from source which took long time. I tried using conda and it worked.

1. Create a new environment in anaconda.
2. conda -c conda-forge tensorflow

Then, it worked.

Instead of remotely putting popper js from CDN you can directly install it in your angular project.

Try this.

npm install popper.js --save 

This query installs an updated version of popper.js Don't mention any version there, it will work for you.

If you changed the ruby version you're using with rvm use, remove Gemfile.lock and try again.

Warning: A component is changing an uncontrolled input of type text to be controlled. Input elements should not switch from uncontrolled to controlled (or vice versa). Decide between using a controlled or uncontrolled input element for the lifetime of the component.

Solution : Check if value is not undefined

React / Formik / Bootstrap / TypeScript

example :

{ values?.purchaseObligation.remainingYear ?
  <Input
   tag={Field}
   name="purchaseObligation.remainingYear"
   type="text"
   component="input"
  /> : null
}

Go to File->Other Settings->Preferences for New Projects->Build, Execution, Deployment->Build Tools->Gradle->Uncheck Offline work option.

My error was calling NgbModal open method with incorrect parameters from .html

I came across this when upgrading from 5.8 to 6.x.

I had str_slug() in config/cache.php and config/session.php.

I have changed it to Str::slug() and the error has disappeared.

See https://laravel.com/docs/6.x/upgrade#helpers.

For React Native Init approach (without expo) use:

npm start -- --reset-cache

For me, I had ~6 different Nuget packages to update and when I selected Microsoft.AspNetCore.All first, I got the referenced error.

I started at the bottom and updated others first (EF Core, EF Design Tools, etc), then when the only one that was left was Microsoft.AspNetCore.All it worked fine.

The way I resolved this error was by finding and fixing the error that the console reported.

Run ng build in your command line/terminal, and it should display a useful error, such as the example in red here: Property 'name' does not exist on type 'object'.

Make use of Arrow functions it improves the readability of code. No need to return anything in API.fetchComments, Api call is asynchronous when the request is completed then will get the response, there you have to just dispatch type and data.

Below code does the same job by making use of Arrow functions.

export const bindComments = postId => {
  return dispatch => {
    API.fetchComments(postId).then(comments => {
      dispatch({
        type: BIND_COMMENTS,
        comments,
        postId
      });
    });
  };
};

Make sure that you've installed php-mysql, the pdo needs php-mysql to operate properly. If not you could simply type

sudo apt install php-mysql

I was getting the same error and could not figure it out. I have a functional component exported and then imported into my App component. I set up my functional component in arrow function format, and was getting the error. I put a "return" statement inside the curly braquets, "return ()" and put all my JSX inside the parens. Hopefully this is useful to someone and not redundant. It seems stackoverflow will auto format this into a single line, however, in my editor, VSCode, it's over multiple lines. Maybe not a big deal, but want to be concise.

import React from 'react';

const Layout = (props) => {
    return (
        <>
            <div>toolbar, sidedrawer, backdrop</div>
            <main>
                {props.children}
            </main>
        </>
    );
};

export default Layout;

Async/Await with axios 

  useEffect(() => {     
    const getData = async () => {  
      await axios.get('your_url')  
      .then(res => {  
        console.log(res)  
      })  
      .catch(err => {  
        console.log(err)  
      });  
    }  
    getData()  
  }, [])

I got the same error when linking separate storyboards. The error, "Command CompileSwiftSources failed with a nonzero exit code." is shown because I simply forgot to set the view controller inside the second storyboard that I am linking as 'an initial view controller'.

Maybe this can help someone.

I was using history.replace() to redirect, so when i tried to use history.goBack(), i was send to the previous page before the page i was working with. So i changed the method history.replace() to history.push() so the history could be saved and i would be able to go back.

if you install npm correctly in this way:

npm install -g @angular/cli@latest

and still have that problem, it maybe because you run the command in shell and not in cmd (you need to run command in cmd), check this out and maybe it helps...

I had this error with Firebase Admin, the solution was configure the Firebase Admin correctly following this link

In Windows 64, if you did this sequence correctly:

Anaconda prompt:

conda create -n tensorflow python=3.5
activate tensorflow
pip install --ignore-installed --upgrade tensorflow

Be sure you still are in tensorflow environment. The best way to make Spyder recognize your tensorflow environment is to do this:

conda install spyder

This will install a new instance of Spyder inside Tensorflow environment. Then you must install scipy, matplotlib, pandas, sklearn and other libraries. Also works for OpenCV.

Always prefer to install these libraries with "conda install" instead of "pip".

this.mainInput doesn't actually point to anything. Since you are using a controlled component (i.e. the value of the input is obtained from state) you can set this.state.city to null:

onHandleSubmit(e) {
  e.preventDefault();
  const city = this.state.city;
  this.props.onSearchTermChange(city);
  this.setState({ city: '' });
}

You can now use top level await in Node v13.3.0

import axios from "axios";

const { data } = await axios.get("https://api.namefake.com/");
console.log(data);

run it with --harmony-top-level-await flag

node --harmony-top-level-await index.js

A simple way to fixe a 419 unknown status on your console is to put this script inside in your FORM. {{ csrf_field() }}

From the firebase release notes, they state that support for Android O was first released in 10.2.1 (although I'd recommend using the most recent version).

please add new firebase messaging dependencies for android O

compile 'com.google.firebase:firebase-messaging:11.6.2'

upgrade google play services and google repositories if needed.

I am also facing the same problem, but I resolve.

npm install node-sass  

Above command work for me. As per your synario you can use the blow command.

Try 1

 npm install node-sass

Try 2

remove node_modules folder and run npm install

Try 3

npm rebuild node-sass

Try 4

npm install --save node-sass

For your ref you can go through this github link

npm install -g npm@4

This will install the latest version on the major release 4, no no need to specify version number. Replace 4 with whatever major release you want.

I had the same problem and the cause was That at time of returning a string in your backend (spring) you might be returning as return "spring used"; But this isn't parsed right according to spring. Instead use return "\" spring used \""; -Peace out

Strangely Java9 is not compatible with android-sdk

$ avdmanager
Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
    at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
    at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
    at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
    at com.android.sdklib.tool.AvdManagerCli.run(AvdManagerCli.java:213)
    at com.android.sdklib.tool.AvdManagerCli.main(AvdManagerCli.java:200)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:185)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496)
    ... 5 more

Combined all commands into one for easy reference:

$ sudo rm -fr /Library/Java/JavaVirtualMachines/jdk-9*.jdk/
$ sudo rm -fr /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin
$ sudo rm -fr /Library/PreferencePanes/JavaControlPanel.prefPane

$ /usr/libexec/java_home -V
Unable to find any JVMs matching version "(null)".
Matching Java Virtual Machines (0):
Default Java Virtual Machines (0):
No Java runtime present, try --request to install

$ brew tap caskroom/versions
$ brew cask install java8
$ touch ~/.android/repositories.cfg
$ brew cask install android-sdk
$ echo 'export ANDROID_SDK_ROOT="/usr/local/share/android-sdk"' >> ~/.bash_profile
$ java -version
java version "1.8.0_162"
Java(TM) SE Runtime Environment (build 1.8.0_162-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.162-b12, mixed mode)
$ avdmanager

Usage:
      avdmanager [global options] [action] [action options]
      Global options:
  -s --silent     : Silent mode, shows errors only.
  -v --verbose    : Verbose mode, shows errors, warnings and all messages.
     --clear-cache: Clear the SDK Manager repository manifest cache.
  -h --help       : Help on a specific command.

Valid actions are composed of a verb and an optional direct object:
-   list              : Lists existing targets or virtual devices.
-   list avd          : Lists existing Android Virtual Devices.
-   list target       : Lists existing targets.
-   list device       : Lists existing devices.
- create avd          : Creates a new Android Virtual Device.
-   move avd          : Moves or renames an Android Virtual Device.
- delete avd          : Deletes an Android Virtual Device.

I just click on latest swift convert button and set App target build setting-> Swift language version: swift 4.0,

Hope this will help.

I found deleting the app from the device and re-installing with Xcode solved this issue.

I believe sideshowbarker 's answer here has all the info you need to fix this. If your problem is just No 'Access-Control-Allow-Origin' header is present on the response you're getting, you can set up a CORS proxy to get around this. Way more info on it in the linked answer

change the ownership of the ~/.local/share/jupyter directory from root to user.

sudo chown -R user:user ~/.local/share/jupyter 

see here: https://github.com/ipython/ipython/issues/8997

The first user before the colon is your username, the second user after the colon is your group. If you get chown: [user]: illegal group name, find your group with groups, or specify no group with sudo chown user: ~/.local/share/jupyter.

EDIT: Added -R option in comments to the answer. You have to change ownership of all files inside this directory (or inside ~/.jupyter/, wherever it gives you PermissionError) to your user to make it work.

In my case, Unfortunately, neither Michel's nor Suragch's solutions worked for me.

So I solved this issue by doing the following:

In gradle:3.0 the compile configuration is now deprecated and should be replaced by implementation or api. For more information you can read here You can read the official docs at Gradle Build Tool

The compile configuration still exists but should not be used as it will not offer the guarantees that the api and implementation configurations provide.

it's better to use implementation or api rather compile

just replace compile with implementation, debugCompile with debugImplementation, testCompile with testImplementation and androidtestcompile with androidTestImplementation

For example: Instead of this

compile 'com.android.support:appcompat-v7:26.0.2'
compile 'com.android.support:support-v4:26.1.0'
compile 'com.github.bumptech.glide:glide:4.0.0'

use like this

implementation 'com.android.support:appcompat-v7:26.0.2'
implementation 'com.android.support:support-v4:26.1.0'
implementation 'com.github.bumptech.glide:glide:4.0.0'

After that

• Delete the .gradle folder inside your project ( Note that, in order to see .gradle, you need to switch to the "Project" view in the navigator on the top left )
• Delete all the build folders and the gradle cache.
• From the Build menu, press the Clean Project button.
• After task completed, press the Rebuild Project button from the Build menu.

Hope it will helps !

I resolved the same problem by this:

git config http.postBuffer 524288000

It might be because of the large size of repository and default buffer size of git so by doing above(on git bash), git buffer size will get increase.

Cheers!

when you have more than one module, you need to specify module name

 ng g c componentName --module=modulename.module 

This problem comes from the CSRF token verification which fails. So either you're not posting one or you're posting an incorrect one.

The reason it works for GET is that for a GET route in Laravel, there is no CSRF token posted.

You can either post a CSRF token in your form by calling:

{{ csrf_field() }}

Or exclude your route (NOT RECOMMENDED DUE TO SECURITY) in app/Http/Middleware/VerifyCsrfToken.php:

protected $except = [
    'your/route'
];

Use the INTERVAL type to it. E.g:

--yesterday
SELECT NOW() - INTERVAL '1 DAY';

--Unrelated to the question, but PostgreSQL also supports some shortcuts:
SELECT 'yesterday'::TIMESTAMP, 'tomorrow'::TIMESTAMP, 'allballs'::TIME;

Then you can do the following on your query:

SELECT 
    org_id,
    count(accounts) AS COUNT,
    ((date_at) - INTERVAL '1 DAY') AS dateat
FROM 
    sourcetable
WHERE 
    date_at <= now() - INTERVAL '130 DAYS'
GROUP BY 
    org_id,
    dateat;

TIPS

Tip 1

You can append multiple operands. E.g.: how to get last day of current month?

SELECT date_trunc('MONTH', CURRENT_DATE) + INTERVAL '1 MONTH - 1 DAY';

Tip 2

You can also create an interval using make_interval function, useful when you need to create it at runtime (not using literals):

SELECT make_interval(days => 10 + 2);
SELECT make_interval(days => 1, hours => 2);
SELECT make_interval(0, 1, 0, 5, 0, 0, 0.0);

More info:

Date/Time Functions and Operators

datatype-datetime (Especial values).

catch needs to return an observable.

.catch(e => { console.log(e); return Observable.of(e); })

if you'd like to stop the pipeline after a caught error, then do this:

.catch(e => { console.log(e); return Observable.of(null); }).filter(e => !!e)

this catch transforms the error into a null val and then filter doesn't let falsey values through. This will however, stop the pipeline for ANY falsey value, so if you think those might come through and you want them to, you'll need to be more explicit / creative.

edit:

better way of stopping the pipeline is to do

.catch(e => Observable.empty())

For Ubuntu 18.04.4 LTS I just followed the official instructions: https://classic.yarnpkg.com/en/docs/install#debian-stable

curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list

sudo apt update && sudo apt install yarn

No need to do:

sudo apt remove cmdtest

That is only necessary on Ubuntu 17.04.* I think.

I hope it helps!

While installing the Angular Command line tool (CLI), If you are getting Rollback Error then it may be occurring due to your network is connected with your Client Network or your Company Network where you are working on.

So Please try to install CLI in your public network (or Your Mobile's hotspot Network) then you would definitely get CLI installed.

For future visitors: In the new HttpClient (Angular 4.3+), the response object is JSON by default, so you don't need to do response.json().data anymore. Just use response directly.

Example (modified from the official documentation):

import { HttpClient } from '@angular/common/http';

@Component(...)
export class YourComponent implements OnInit {

  // Inject HttpClient into your component or service.
  constructor(private http: HttpClient) {}

  ngOnInit(): void {
    this.http.get('https://api.github.com/users')
        .subscribe(response => console.log(response));
  }
}

Don't forget to import it and include the module under imports in your project's app.module.ts:

...
import { HttpClientModule } from '@angular/common/http';

@NgModule({
  imports: [
    BrowserModule,
    // Include it under 'imports' in your application module after BrowserModule.
    HttpClientModule,
    ...
  ],
  ...

use paramMap

This will provide param names and their values

//http://localhost:4200/categories/1
//{ path: 'categories/:category', component: CategoryComponent },

import { ActivatedRoute } from '@angular/router';

constructor(private route: ActivatedRoute) { }

ngOnInit() {

  this.route.paramMap.subscribe(params => {
        console.log(params)
  })
}

If you have newly upgraded your php version you might be forget to restart your webserver service.

npm i cors
const app = require('express')()
app.use(cors())

Above code worked for me.

In the VSCode status bar, it must be showing typescript version - like this

Clicking on that version number will show you this, different versions available.

If you are using the VSCode version then switching to Workspace version solves the problem if it is VScode issue rather than your tsconfig.json (I am already using that one, so not highlighted)

Try this:

<img v-bind:src="'/media/avatars/' + joke.avatar" /> 

Don't forget single quote around your path string. also in your data check you have correctly defined image variable.

joke: {
  avatar: 'image.jpg'
}

A working demo here: http://jsbin.com/pivecunode/1/edit?html,js,output

I've just had the same issue - for me Privacy Badger on Firefox was the issue - not adblocker. Posting for posterity

You can also use npm package called esm which allows you to use ES6 modules in Node.js. It needs no configuration. With esm you will be able to use export/import in your JavaScript files.

Run the following command on your terminal

yarn add esm

or

npm install esm

After that, you need to require this package when starting your server with node. For example if your node server runs index.js file, you would use the command

node -r esm index.js

You can also add it in your package.json file like this

{
  "name": "My-app",
  "version": "1.0.0",
  "description": "Some Hack",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "node -r esm index.js"
  },

}

Then run this command from the terminal to start your node server

npm start

Check this link for more details.

Yes you can. I assume you have a xampp already installed. So,

• Close all xampp instances. Using task manager stop apache and mysqld.
• Then rename the xampp to xampp1 or something after xampp name.
• Now Download the other xampp version. Create a folder name xampp only. Install the downloaded xampp there.
• Now depending on the xampp version of your requirement, just rename the target folder to xampp only and other folder to different name.

That's how I am working with multiple xampp installed

Below method can be used for copying the message:-

export function copyTextAreaToClipBoard(message: string) {
  const cleanText = message.replace(/<\/?[^>]+(>|$)/g, '');
  const x = document.createElement('TEXTAREA') as HTMLTextAreaElement;
  x.value = cleanText;
  document.body.appendChild(x);
  x.select();
  document.execCommand('copy');
  document.body.removeChild(x);
}

All the answers seem correct so I'll go ahead and give a complete answer here.

Firstly, the easiest way to do what you are trying to do is launch a Broadcast in Android when the app is killed manually, and define a custom BroadcastReceiver to trigger a service restart following that.

Now lets jump into code.

Create your Service in YourService.java

Note the onCreate() method, where we are starting a foreground service differently for Build versions greater than Android Oreo. This because of the strict notification policies introduced recently where we have to define our own notification channel to display them correctly.

The this.sendBroadcast(broadcastIntent); in the onDestroy() method is the statement which asynchronously sends a broadcast with the action name "restartservice". We'll be using this later as a trigger to restart our service.

Here we have defined a simple Timer task, which prints a counter value every 1 second in the Log while incrementing itself every time it prints.

public class YourService extends Service {
public int counter=0;

    @Override
    public void onCreate() {
        super.onCreate();
        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.O)
            startMyOwnForeground();
        else
            startForeground(1, new Notification());
    }

    @RequiresApi(Build.VERSION_CODES.O)
    private void startMyOwnForeground()
    {
        String NOTIFICATION_CHANNEL_ID = "example.permanence";
        String channelName = "Background Service";
        NotificationChannel chan = new NotificationChannel(NOTIFICATION_CHANNEL_ID, channelName, NotificationManager.IMPORTANCE_NONE);
        chan.setLightColor(Color.BLUE);
        chan.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);
        
        NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        assert manager != null;
        manager.createNotificationChannel(chan);

        NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID);
        Notification notification = notificationBuilder.setOngoing(true)
                .setContentTitle("App is running in background")
                .setPriority(NotificationManager.IMPORTANCE_MIN)
                .setCategory(Notification.CATEGORY_SERVICE)
                .build();
        startForeground(2, notification);
    }


    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        super.onStartCommand(intent, flags, startId);
        startTimer();
        return START_STICKY;
    }


    @Override
    public void onDestroy() {
        super.onDestroy();
        stoptimertask();

        Intent broadcastIntent = new Intent();
        broadcastIntent.setAction("restartservice");
        broadcastIntent.setClass(this, Restarter.class);
        this.sendBroadcast(broadcastIntent);
    }



    private Timer timer;
    private TimerTask timerTask;
    public void startTimer() {
        timer = new Timer();
        timerTask = new TimerTask() {
            public void run() {
                Log.i("Count", "=========  "+ (counter++));
            }
        };
        timer.schedule(timerTask, 1000, 1000); //
    }

    public void stoptimertask() {
        if (timer != null) {
            timer.cancel();
            timer = null;
        }
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }
}

Create a Broadcast Receiver to respond to your custom defined broadcasts in Restarter.java

The broadcast with the action name "restartservice" which you just defined in YourService.java is now supposed to trigger a method which will restart your service. This is done using BroadcastReceiver in Android.

We override the built-in onRecieve() method in BroadcastReceiver to add the statement which will restart the service. The startService() will not work as intended in and above Android Oreo 8.1, as strict background policies will soon terminate the service after restart once the app is killed. Therefore we use the startForegroundService() for higher versions and show a continuous notification to keep the service running.

public class Restarter extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        Log.i("Broadcast Listened", "Service tried to stop");
        Toast.makeText(context, "Service restarted", Toast.LENGTH_SHORT).show();

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            context.startForegroundService(new Intent(context, YourService.class));
        } else {
            context.startService(new Intent(context, YourService.class));
        }
    }
}

Define your MainActivity.java to call the service on app start.

Here we define a separate isMyServiceRunning() method to check the current status of the background service. If the service is not running, we start it by using startService().

Since the app is already running in foreground, we need not launch the service as a foreground service to prevent itself from being terminated.

Note that in onDestroy() we are dedicatedly calling stopService(), so that our overridden method gets invoked. If this was not done, then the service would have ended automatically after app is killed without invoking our modified onDestroy() method in YourService.java

public class MainActivity extends AppCompatActivity {
    Intent mServiceIntent;
    private YourService mYourService;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mYourService = new YourService();
        mServiceIntent = new Intent(this, mYourService.getClass());
        if (!isMyServiceRunning(mYourService.getClass())) {
            startService(mServiceIntent);
        }
    }

    private boolean isMyServiceRunning(Class<?> serviceClass) {
        ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
        for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
            if (serviceClass.getName().equals(service.service.getClassName())) {
                Log.i ("Service status", "Running");
                return true;
            }
        }
        Log.i ("Service status", "Not running");
        return false;
    }


    @Override
    protected void onDestroy() {
        //stopService(mServiceIntent);
        Intent broadcastIntent = new Intent();
        broadcastIntent.setAction("restartservice");
        broadcastIntent.setClass(this, Restarter.class);
        this.sendBroadcast(broadcastIntent);
        super.onDestroy();
    }
}

Finally register them in your AndroidManifest.xml

All of the above three classes need to be separately registered in AndroidManifest.xml.

Note that we define an intent-filter with the action name as "restartservice" where the Restarter.java is registered as a receiver. This ensures that our custom BroadcastReciever is called whenever the system encounters a broadcast with the given action name.

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">

    <receiver
        android:name="Restarter"
        android:enabled="true"
        android:exported="true">
        <intent-filter>
            <action android:name="restartservice" />
        </intent-filter>
    </receiver>

    <activity android:name="MainActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <service
        android:name="YourService"
        android:enabled="true" >
    </service>
</application>

This should now restart your service again if the app was killed from the task-manager. This service will keep on running in background as long as the user doesn't Force Stop the app from Application Settings.

UPDATE: Kudos to Dr.jacky for pointing it out. The above mentioned way will only work if the onDestroy() of the service is called, which might not be the case certain times, which I was unaware of. Thanks.

You will need to have a function which replaces \n to \\n in case data is not a string literal.

function jsonEscape(str)  {
    return str.replace(/\n/g, "\\\\n").replace(/\r/g, "\\\\r").replace(/\t/g, "\\\\t");
}

var data = '{"count" : 1, "stack" : "sometext\n\n"}';
var dataObj = JSON.parse(jsonEscape(data));

Resulting dataObj will be

Object {count: 1, stack: "sometext\n\n"}

This is typically because you have not set the origin alias on your Git repository.

Try

git remote add origin URL_TO_YOUR_REPO

This will add an alias in your .git/config file for the remote clone/push/pull site URL. This URL can be found on your repository Overview page.

A Subscription is an object that represents a disposable resource, usually the execution of an Observable. A Subscription has one important method, unsubscribe, that takes no argument and just disposes of the resource held by the subscription.

import { interval } from 'rxjs';

const observable = interval(1000);
const subscription = observable.subscribe(a=> console.log(a));

/** This cancels the ongoing Observable execution which
was started by calling subscribe with an Observer.*/

subscription.unsubscribe();

A Subscription essentially just has an unsubscribe() function to release resources or cancel Observable executions.

import { interval } from 'rxjs';

const observable1 = interval(400);
const observable2 = interval(300);

const subscription = observable1.subscribe(x => console.log('first: ' + x));
const childSubscription = observable2.subscribe(x => console.log('second: ' + x));

subscription.add(childSubscription);

setTimeout(() => {
// It unsubscribes BOTH subscription and childSubscription
subscription.unsubscribe();
}, 1000);

According to the official documentation, Angular should unsubscribe for you, but apparently, there is a bug.

That doesn't work because a member function pointer cannot be handled like a normal function pointer, because it expects a "this" object argument.

Instead you can pass a static member function as follows, which are like normal non-member functions in this regard:

m_cRedundencyManager->Init(&CLoggersInfra::Callback, this);

The function can be defined as follows

static void Callback(int other_arg, void * this_pointer) {
    CLoggersInfra * self = static_cast<CLoggersInfra*>(this_pointer);
    self->RedundencyManagerCallBack(other_arg);
}

Try following or check demo disabled and readonly

$('#dropUnit').is(':disabled') //Returns bool
$('#dropUnit').attr('readonly') == "readonly"  //If Condition

You can check jQuery FAQ .

SKINDER, your code does not use column name. Correct script is:

declare @table_name nvarchar(256)  
declare @col_name nvarchar(256)  
declare @Command  nvarchar(1000)  

set @table_name = N'users'
set @col_name = N'login'

select @Command = 'ALTER TABLE ' + @table_name + ' drop constraint ' + d.name
    from sys.tables t 
    join sys.indexes d on d.object_id = t.object_id  and d.type=2 and d.is_unique=1
    join sys.index_columns ic on d.index_id=ic.index_id and ic.object_id=t.object_id
    join sys.columns c on ic.column_id = c.column_id  and c.object_id=t.object_id
    where t.name = @table_name and c.name=@col_name

print @Command

--execute (@Command)

To elaborate on Ben's answer:

If you add a reference to Microsoft Scripting Runtime and correctly type the variable fso you can take advantage of autocompletion (Intellisense) and discover the other great features of FileSystemObject.

Here is a complete example module:

Option Explicit

' Go to Tools -> References... and check "Microsoft Scripting Runtime" to be able to use
' the FileSystemObject which has many useful features for handling files and folders
Public Sub SaveTextToFile()

    Dim filePath As String
    filePath = "C:\temp\MyTestFile.txt"

    ' The advantage of correctly typing fso as FileSystemObject is to make autocompletion
    ' (Intellisense) work, which helps you avoid typos and lets you discover other useful
    ' methods of the FileSystemObject
    Dim fso As FileSystemObject
    Set fso = New FileSystemObject
    Dim fileStream As TextStream

    ' Here the actual file is created and opened for write access
    Set fileStream = fso.CreateTextFile(filePath)

    ' Write something to the file
    fileStream.WriteLine "something"

    ' Close it, so it is not locked anymore
    fileStream.Close

    ' Here is another great method of the FileSystemObject that checks if a file exists
    If fso.FileExists(filePath) Then
        MsgBox "Yay! The file was created! :D"
    End If

    ' Explicitly setting objects to Nothing should not be necessary in most cases, but if
    ' you're writing macros for Microsoft Access, you may want to uncomment the following
    ' two lines (see https://stackoverflow.com/a/517202/2822719 for details):
    'Set fileStream = Nothing
    'Set fso = Nothing

End Sub

You can use count() function, which has however a different behaviour depending on the version of dplyr:

• dplyr 0.7.1: returns an ungrouped table: you need to group again by am

• dplyr < 0.7.1: returns a grouped table, so no need to group again, although you might want to ungroup() for later manipulations

dplyr 0.7.1

mtcars %>%
  count(am, gear) %>%
  group_by(am) %>%
  mutate(freq = n / sum(n))

dplyr < 0.7.1

mtcars %>%
  count(am, gear) %>%
  mutate(freq = n / sum(n))

This results into a grouped table, if you want to use it for further analysis, it might be useful to remove the grouped attribute with ungroup().

whenever you need to use the ScrollView as parent, And you also use the scroll movement method with TextView.

And When you portrait to landscape your device that time occur some issue. (like) entire page is scrollable but scroll movement method can't work.

if you still need to use ScrollView as parent or scroll movement method then you also use below desc.

If you do not have any problems then you use EditText instead of TextView

see below :

<EditText
     android:id="@+id/description_text_question"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:background="@null"
     android:editable="false"
     android:cursorVisible="false"
     android:maxLines="6"/>

Here, the EditText behaves like TextView

And your issue will be resolved

gunzip <filename>

then

tar -xvf <tar-file-name>

You can use dt.strftime if you need to convert datetime to other formats (but note that then dtype of column will be object (string)):

import pandas as pd

df = pd.DataFrame({'DOB': {0: '26/1/2016', 1: '26/1/2016'}})
print (df)
         DOB
0  26/1/2016 
1  26/1/2016

df['DOB'] = pd.to_datetime(df.DOB)
print (df)
         DOB
0 2016-01-26
1 2016-01-26

df['DOB1'] = df['DOB'].dt.strftime('%m/%d/%Y')
print (df)
         DOB        DOB1
0 2016-01-26  01/26/2016
1 2016-01-26  01/26/2016

I did exactly the same issue using the dependency below:

<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.44</version>
</dependency>

I just change to version 46 and everything works.

You should also check out the "clear" property in css in case removing a float isn't an option

My solution was to change:

  'driver' => 'smtp',

to

 'driver' => 'mail',

In app/config/mail

Hope that helps

So I worked out at the end that you cannot uninstall 3.4 as it is default on Ubuntu.

All I did was simply remove Jupyter and then alias python=python2.7 and install all packages on Python 2.7 again.

Arguably, I can install virtualenv but me and my colleagues are only using 2.7. I am just going to be lazy in this case :)

Just little elaboration of regex for search a directory and file

Find a directroy with name like book

find . -name "*book*" -type d

Find a file with name like book word

find . -name "*book*" -type f

This is a tricky but super simple solution which works in many situations:

import os
os.system('sample_cmd > tmp')
print open('tmp', 'r').read()

A temporary file(here is tmp) is created with the output of the command and you can read from it your desired output.

Extra note from the comments: You can remove the tmp file in the case of one-time job. If you need to do this several times, there is no need to delete the tmp.

os.remove('tmp')

This is a subjective opinion, but I think a text editor shouldn't do everything and the kitchen sink. I prefer lightweight flexible and powerful (in their specialized fields) editors. Although being mostly a Windows user, I like the Unix philosophy of having lot of specialized tools that you can pipe together (like the UnxUtils) rather than a monster doing everything, but not necessarily as you would like it!

Find in files is on the border of these extra features, but useful when you can double-click on a found line to open the file at the right line. Note that initially, in SciTE it was just a Tools call to grep or equivalent!
FTP is very close to off topic, although it can be seen as an extended open/save dialog.
Replace in files is too much IMO: it is dangerous (you can mess lot of files at once) if you have no preview, etc. I would rather use a specialized tool I chose, perhaps among those in Multi line search and replace tool.

To answer the question, looking at N++, I see a Run menu where you can launch any tool, with assignment of a name and shortcut key. I see also Plugins > NppExec, which seems able to launch stuff like sed (not tried it).

Lots of answers but no substance, like robots doing cut and paste on what's on their system. There is no need to set GOROOT as an environment variable. However, there is a beneficial need to set the GOPATH environment variable, and if not set it defaults to ${HOME}/go/ folder.

It is the PATH environment variable that you must pay attention because this variable is the variable that can change your go version. Not GOROOT! Forget GOROOT.

Now, if you switch or change to a new go version, your downloaded packages will use the default $HOME/go folder and it will mixed-up with whatever your previous go version was. This is not good.

Therefore, this is where GOPATH you need to define in order to isolate downloaded packages of the new go version.

In summary, forget GOROOT. Think more on GOPATH.

using java introspection you can do it, for example:

private void changeRootLoggerLevel(int level) {

    if (logger instanceof org.slf4j.impl.Log4jLoggerAdapter) {
        try {
            Class loggerIntrospected = logger.getClass();
            Field fields[] = loggerIntrospected.getDeclaredFields();
            for (int i = 0; i < fields.length; i++) {
                String fieldName = fields[i].getName();
                if (fieldName.equals("logger")) {
                    fields[i].setAccessible(true);
                    org.apache.log4j.Logger loggerImpl = (org.apache.log4j.Logger) fields[i]
                            .get(logger);

                    if (level == DIAGNOSTIC_LEVEL) {
                        loggerImpl.setLevel(Level.DEBUG);
                    } else {
                        loggerImpl.setLevel(org.apache.log4j.Logger.getRootLogger().getLevel());
                    }

                    // fields[i].setAccessible(false);
                }
            }
        } catch (Exception e) {
            org.apache.log4j.Logger.getLogger(LoggerSLF4JImpl.class).error("An error was thrown while changing the Logger level", e);
        }
    }

}

Try like this :

component.html

<form [formGroup]="countryForm">
    <select id="country" formControlName="country">
        <option *ngFor="let c of countries" [ngValue]="c">{{ c }}</option>
    </select>
</form>

component.ts

import { FormControl, FormGroup, Validators } from '@angular/forms';

export class Component {

    countries: string[] = ['USA', 'UK', 'Canada'];
    default: string = 'UK';

    countryForm: FormGroup;

    constructor() {
        this.countryForm = new FormGroup({
            country: new FormControl(null);
        });
        this.countryForm.controls['country'].setValue(this.default, {onlySelf: true});
    }
}

You need to add a name attribute to your dropdown list, then you need to add a required attribute, and then you can reference the error using myForm.[input name].$error.required:

HTML:

        <form name="myForm" ng-controller="Ctrl" ng-submit="save(myForm)" novalidate>
        <input type="text" name="txtServiceName" ng-model="ServiceName" required>
<span ng-show="myForm.txtServiceName.$error.required">Enter Service Name</span>
<br/>
          <select name="service_id" class="Sitedropdown" style="width: 220px;"          
                  ng-model="ServiceID" 
                  ng-options="service.ServiceID as service.ServiceName for service in services"
                  required> 
            <option value="">Select Service</option> 
          </select> 
          <span ng-show="myForm.service_id.$error.required">Select service</span>

        </form>

    Controller:

        function Ctrl($scope) {
          $scope.services = [
            {ServiceID: 1, ServiceName: 'Service1'},
            {ServiceID: 2, ServiceName: 'Service2'},
            {ServiceID: 3, ServiceName: 'Service3'}
          ];

    $scope.save = function(myForm) {
    console.log('Selected Value: '+ myForm.service_id.$modelValue);
    alert('Data Saved! without validate');
    };
        }

Here's a working plunker.

Yes, i also I fixed it changing in the js libraries to the unminified.

For example, in the tag, change:

<script type="text/javascript" src="js/jquery.ui.core.min.js"></script>
<script type="text/javascript" src="js/jquery.ui.widget.min.js"></script>
<script type="text/javascript" src="js/jquery.ui.rcarousel.min.js"></script>

For:

<script type="text/javascript" src="js/jquery.ui.core.js"></script>
<script type="text/javascript" src="js/jquery.ui.widget.js"></script>
<script type="text/javascript" src="js/jquery.ui.rcarousel.js"></script>

Quiting the 'min' as unminified.

Thanks for the idea.

a reply to @DarinDimitrov for a case where i have used foreach in a razor view.

<li><label for="category">Category</label>
        <select id="category">
            <option value="0">All</option>
            @foreach(Category c in Model.Categories)
            {
                <option title="@c.Description" value="@c.CategoryID">@c.Name</option>
            }
        </select>
</li>

You are defining the color: #C1C1C1; for all the a elements with #sub-nav-container a.

Doing it again in li.sub-navigation-home-news won't do anything, as it is a parent of the a element.

pip3 not pip. You can create an alias like you did with python3 if you like.

java.util.Date constructor with parameters like new Date(int year, int month, int date, int hrs, int min). is deprecated and preferably do not use it any more. Oracle docs prefers the way over java.util.Calendar. So you can set any date and instantiate Date object through the getTime() method.

Calendar calendar = Calendar.getInstance();
calendar.set(2018, 11, 31, 59, 59, 59);
Date happyNewYearDate = calendar.getTime();

Notice that month number starts from 0

Also Keep in mind that Hive is a big data warehouse. When you want to drop a table you dont want to lose Gigabytes or Terabytes of data. Generating, moving and copying data at that scale can be time consuming. When you drop a 'Managed' table hive will also trash its data. When you drop a 'External' table only the schema definition from hive meta-store is removed. The data on the hdfs still remains.

As Android is working on a single thread, you should not do any network operation on the main thread. There are various ways to avoid this.

Use the following way to perform a network operation

• Asysnctask: For small operations which don't take much time.
• Intent Service: For network operation which take a big amount of time.
• Use a custom library like Volley and Retrofit for handling complex network operations

Never use StrictMode.setThreadPolicy(policy), as it will freeze your UI and is not at all a good idea.

Decorator method using decorator Python library:

import decorator

@decorator
def timing(func, *args, **kwargs):
    '''Function timing wrapper
        Example of using:
        ``@timing()``
    '''

    fn = '%s.%s' % (func.__module__, func.__name__)

    timer = Timer()
    with timer:
        ret = func(*args, **kwargs)

    log.info(u'%s - %0.3f sec' % (fn, timer.duration_in_seconds()))
    return ret

See post on my Blog:

post on mobilepro.pl Blog

my post on Google Plus

You can not use DATEDIFF but you can use this (if columns are not date type):

SELECT 
to_date('2008-08-05','YYYY-MM-DD')-to_date('2008-06-05','YYYY-MM-DD') 
AS DiffDate from dual

you can see the sample

http://sqlfiddle.com/#!4/d41d8/34609

I spent days trying all the above answers and ensuring I had the proxy and other settings in my node config correct. All were and it was still failing. I was/am using a Windows 10 machine and behind a corp proxy.

For some legacy reason, I had HTTP_PROXY and HTTPS_PROXY set in my user environment variables which overrides the node ones (unknown to me), so correcting these (the HTTPS_PROXY one was set to https, so I changed to HTTP) fixed the problem for me.

This is the problem when we can have the Same variables in Multiple places, you don't know what one is being used!

if duplicate and ordering items are problem :

[i for i in a if not i in b or b.remove(i)]

a = [1,2,3,3,3,3,4]
b = [1,3]
result: [2, 3, 3, 3, 4]

Try this:

alert("Successful Message");
location.reload();

According to the settings reference:

updatePolicy: This element specifies how often updates should attempt to occur. Maven will compare the local POM’s timestamp (stored in a repository’s maven-metadata file) to the remote. The choices are: always, daily (default), interval:X (where X is an integer in minutes) or never.

Example:

<profiles>
    <profile>
      ...
      <repositories>
        <repository>
          <id>myRepo</id>
          <name>My Repository</name>
          <releases>
            <enabled>false</enabled>
            <updatePolicy>always</updatePolicy>
            <checksumPolicy>warn</checksumPolicy>
          </releases>
         </repository>
      </repositories>
      ...
    </profile>
  </profiles>
  ...
</settings>

Instead of WorksheetFunction.Vlookup, you can use Application.Vlookup. If you set a Variant equal to this it returns Error 2042 if no match is found. You can then test the variant - cellNum in this case - with IsError:

Sub test()
Dim ws As Worksheet: Set ws = Sheets("2012")
Dim rngLook As Range: Set rngLook = ws.Range("A:M")
Dim currName As String
Dim cellNum As Variant

'within a loop
currName = "Example"
cellNum = Application.VLookup(currName, rngLook, 13, False)
If IsError(cellNum) Then
    MsgBox "no match"
Else
    MsgBox cellNum
End If
End Sub

The Application versions of the VLOOKUP and MATCH functions allow you to test for errors without raising the error. If you use the WorksheetFunction version, you need convoluted error handling that re-routes your code to an error handler, returns to the next statement to evaluate, etc. With the Application functions, you can avoid that mess.

The above could be further simplified using the IIF function. This method is not always appropriate (e.g., if you have to do more/different procedure based on the If/Then) but in the case of this where you are simply trying to determinie what prompt to display in the MsgBox, it should work:

cellNum = Application.VLookup(currName, rngLook, 13, False)
MsgBox IIF(IsError(cellNum),"no match", cellNum)

Consider those methods instead of On Error ... statements. They are both easier to read and maintain -- few things are more confusing than trying to follow a bunch of GoTo and Resume statements.

LayoutInflater inflater = (LayoutInflater) SettingActivity.this.getSystemService(SettingActivity.LAYOUT_INFLATER_SERVICE); 
PopupWindow pw = new PopupWindow(inflater.inflate(R.layout.gd_quick_action_slide_fontsize, null),LayoutParams.MATCH_PARENT,LayoutParams.MATCH_PARENT, true);
pw.showAtLocation(SettingActivity.this.findViewById(R.id.setting_fontsize), Gravity.CENTER, 0, 0);
View v= pw.getContentView();
TextView tv=v.findViewById(R.id.....);

This is my simple codes I hope it can help you

private void button2_Click(object sender, EventArgs e)
    {
        if (button2.Text == "ON")
        {
            panel_light.BackColor = Color.Yellow; //symbolizes light turned on

            button2.Text = "OFF";
        }

        else if (button2.Text == "OFF")
        {
            panel_light.BackColor = Color.Black; //symbolizes light turned off

            button2.Text = "ON";
        }
    }

For people who want to use another diff tool not listed in git, say with nvim. here is what I ended up using:

git config --global alias.d difftool -x <tool name>

In my case, I set <tool name> to nvim -d and invoke the diff command with

git d <file>

You can use:

setx PATH "%PATH%;C:\\Something\\bin"

However, setx will truncate the stored string to 1024 bytes, potentially corrupting the PATH.

/M will change the PATH in HKEY_LOCAL_MACHINE instead of HKEY_CURRENT_USER. In other words, a system variable, instead of the user's. For example:

SETX /M PATH "%PATH%;C:\your path with spaces"

You have to keep in mind, the new PATH is not visible in your current cmd.exe.

But if you look in the registry or on a new cmd.exe with "set p" you can see the new value.

If you do something like this:

File file = new File("test.txt");
String parent = file.getParent();

parent will be null.

So to get directory of this file you can do next:

parent = file.getAbsoluteFile().getParent();

$files = glob($_SERVER["DOCUMENT_ROOT"]."/myFolder/*");

Like this

DECLARE @date DATETIME
SET @date = '2011-09-28 18:01:00'
select convert(varchar, @date,105) + ' ' + convert(varchar, @date,108)

You can achieve this with the following code:

$("input").change(function(e) {

    for (var i = 0; i < e.originalEvent.srcElement.files.length; i++) {

        var file = e.originalEvent.srcElement.files[i];

        var img = document.createElement("img");
        var reader = new FileReader();
        reader.onloadend = function() {
             img.src = reader.result;
        }
        reader.readAsDataURL(file);
        $("input").after(img);
    }
});

Demo: http://jsfiddle.net/ugPDx/

Just use the following methods to create a 2-D vector.

int rows, columns;        

// . . .

vector < vector < int > > Matrix(rows, vector< int >(columns,0));

OR

vector < vector < int > > Matrix;

Matrix.assign(rows, vector < int >(columns, 0));

//Do your stuff here...

This will create a Matrix of size rows * columns and initializes it with zeros because we are passing a zero(0) as a second argument in the constructor i.e vector < int > (columns, 0).

Here is another solution using Jquery I find it a little easier and neater than inline JS sometimes.

    <html>
    <head>
    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
    <script>

        /* if you prefer to functionize and use onclick= rather then the .on bind
        function hide_show(){
            $(this).hide();
            $("#hidden-div").show();
        }
        */

        $(function(){
            $("#chkbtn").on('click',function() {
                $(this).hide();
                $("#hidden-div").show();
            }); 
        });
    </script>
    <style>
    .hidden-div {
        display:none
    }
    </style>
    </head>
    <body>
    <div class="reform">
        <form id="reform" action="action.php" method="post" enctype="multipart/form-data">
        <input type="hidden" name="type" value="" />
            <fieldset>
                content here...
            </fieldset>

                <div class="hidden-div" id="hidden-div">

            <fieldset>
                more content here that is hidden until the button below is clicked...
            </fieldset>
        </form>
                </div>
                <span style="display:block; padding-left:640px; margin-top:10px;"><button id="chkbtn">Check Availability</button></span>
    </div>
    </body>
    </html>

You're just trying to concatenate the two byte arrays?

byte[] one = getBytesForOne();
byte[] two = getBytesForTwo();
byte[] combined = new byte[one.length + two.length];

for (int i = 0; i < combined.length; ++i)
{
    combined[i] = i < one.length ? one[i] : two[i - one.length];
}

Or you could use System.arraycopy:

byte[] one = getBytesForOne();
byte[] two = getBytesForTwo();
byte[] combined = new byte[one.length + two.length];

System.arraycopy(one,0,combined,0         ,one.length);
System.arraycopy(two,0,combined,one.length,two.length);

Or you could just use a List to do the work:

byte[] one = getBytesForOne();
byte[] two = getBytesForTwo();

List<Byte> list = new ArrayList<Byte>(Arrays.<Byte>asList(one));
list.addAll(Arrays.<Byte>asList(two));

byte[] combined = list.toArray(new byte[list.size()]);

Or you could simply use ByteBuffer with the advantage of adding many arrays.

byte[] allByteArray = new byte[one.length + two.length + three.length];

ByteBuffer buff = ByteBuffer.wrap(allByteArray);
buff.put(one);
buff.put(two);
buff.put(three);

byte[] combined = buff.array();

There are two ways to achieve this:

final PageRequest page1 = new PageRequest(
  0, 20, Direction.ASC, "lastName", "salary"
);

final PageRequest page2 = new PageRequest(
  0, 20, new Sort(
    new Order(Direction.ASC, "lastName"), 
    new Order(Direction.DESC, "salary")
  )
);

dao.findAll(page1);

As you can see the second form is more flexible as it allows to define different direction for every property (lastName ASC, salary DESC).

Just pass it as an argument of findAll:

>>> from BeautifulSoup import BeautifulSoup
>>> soup = BeautifulSoup("""
... <html>
... <head><title>My Title!</title></head>
... <body><table>
... <tr><td>First!</td>
... <td valign="top">Second!</td></tr>
... </table></body><html>
... """)
>>>
>>> soup.findAll('td')
[<td>First!</td>, <td valign="top">Second!</td>]
>>>
>>> soup.findAll('td', valign='top')
[<td valign="top">Second!</td>]

For those who are still unable to get it working, try the following in addition to the method provided by @CallMeBob.

PHP.ini

1. Go to C:\xampp\php , edit php.ini file with notepad.
2. Press CTRL+F on your keyboard, input sendmail_path on the search bar and click Find Next twice.
3. Right now, you should be at the [mail munction] section.

Remove the semicolon for this line: sendmail_path = "\"C:\xampp\sendmail\sendmail.exe\" -t"
Add a semicolon for this line: sendmail_path="C:\xampp\mailtodisk\mailtodisk.exe"

SendMail.ini

• Go to C:\xampp\sendmail, edit sendmail.ini file with notepad
• Change the following:
  

• smtp_server=smtp.gmail.com
• smtp_port=465
• [email protected]
• auth_password=your-gmail-password
• [email protected]

Note:
** smtp_port must tally with your those written in your php code.
** Remember to change your-gmail-username and your-gmail-password to whichever account you are using.
**

Hope this helps! :)

The problem is somewhere else in your code, because this works:

string line("test\ttest2\ttest3");
vector<string> strs;
boost::split(strs,line,boost::is_any_of("\t"));

cout << "* size of the vector: " << strs.size() << endl;    
for (size_t i = 0; i < strs.size(); i++)
    cout << strs[i] << endl;

and testing your approach, which uses a vector iterator also works:

string line("test\ttest2\ttest3");
vector<string> strs;
boost::split(strs,line,boost::is_any_of("\t"));

cout << "* size of the vector: " << strs.size() << endl;
for (vector<string>::iterator it = strs.begin(); it != strs.end(); ++it)
{
    cout << *it << endl;
}

Again, your problem is somewhere else. Maybe what you think is a \t character on the string, isn't. I would fill the code with debugs, starting by monitoring the insertions on the vector to make sure everything is being inserted the way its supposed to be.

Output:

* size of the vector: 3
test
test2
test3

In case you using lookup to set default read from environment you have also set the second parameter of default to true:

- set_facts:
    ansible_ssh_user: "{{ lookup('env', 'SSH_USER') | default('foo', true) }}"

You can also concatenate multiple default definitions:

- set_facts:
    ansible_ssh_user: "{{ some_var.split('-')[1] | default(lookup('env','USER'), true) | default('foo') }}"

$.get("file.html", function(data){
    $("#div").html(data);
});

If you are looking for single quote, it is

'

You can use If function Write in the cell where you want to input the date the following formula: =IF(MODIFIED-CELLNUMBER<>"",IF(CELLNUMBER-WHERE-TO-INPUT-DATE="",NOW(),CELLNUMBER-WHERE-TO-INPUT-DATE),"")

In addition to @ericgol's answer: In the French version of Visual Studio Community 2017, type "Concepteur de classes" in the search bar.

I just had to have an HTML entity charater (⇓) as a value for a HTML button. The HTML code looks good from the beginning in the browser:

<input type="button" value="Embed & Share  &dArr;" id="share_button" />

Now I was adding a toggle that should also display the charater. This is my solution

$("#share_button").toggle(
    function(){
        $("#share").slideDown();
        $(this).attr("value", "Embed & Share " + $("<div>").html("&uArr;").text());
    }

This displays ⇓ again in the button. I hope this might help someone.

To avoid the UnauthorizedAccessException, I use:

var files = GetFiles(@"C:\", "*.*", SearchOption.AllDirectories);
foreach (var file in files)
{
    Console.WriteLine($"{file}");
}

public static IEnumerable<string> GetFiles(string path, string searchPattern, SearchOption searchOption)
{
    var foldersToProcess = new List<string>()
    {
        path
    };

    while (foldersToProcess.Count > 0)
    {
        string folder = foldersToProcess[0];
        foldersToProcess.RemoveAt(0);

        if (searchOption.HasFlag(SearchOption.AllDirectories))
        {
            //get subfolders
            try
            {
                var subfolders = Directory.GetDirectories(folder);
                foldersToProcess.AddRange(subfolders);
            }
            catch (Exception ex)
            {
                //log if you're interested
            }
        }

        //get files
        var files = new List<string>();
        try
        {
            files = Directory.GetFiles(folder, searchPattern, SearchOption.TopDirectoryOnly).ToList();
        }
        catch (Exception ex)
        {
            //log if you're interested
        }

        foreach (var file in files)
        {
            yield return file;
        }
    }
}

You can try this way:

$datetime = new DateTime('2010-12-30 23:21:46');

echo $datetime->format(DATE_ATOM);

Is there any 64 bit Visual Studio at all?

Yes literally there is one called "Visual Studio" and is 64bit, but well,, on Mac not on Windows

Why not?

Decision making is electro-chemical reaction made in our brain and that have an activation point (Nerdest answer I can come up with, but follow). Same situation happened in history: Windows 64!...

So in order to answer this fully I want you to remember old days. Imagine reasons for "why not we see 64bit Windows" are there at the time. I think at the time for Windows64 they had exact same reasons others have enlisted here about "reasons why not 64bit VS on windows" were on "reasons why not 64bit Windows" too. Then why they did start development for Windows 64bit? Simple! If they didn't succeed in making 64bit Windows I bet M$ would have been a history nowadays. If same reasons forcing M$ making 64bit Windows starts to appear on need for 64Bit VS then I bet we will see 64bit VS, even though very same reasons everyone else here enlisted will stay same! In time the limitations of 32bit may hit VS as well, so most likely something like below start to happen:

• Visual Studio will drop 32bit support and become 64bit,
• Visual Studio Code will take it's place instead,
• Visual Studio will have similar functionality like WOW64 for old extensions which is I believe unlikely to happen.

I put my bets on Visual Studio Code taking the place in time; I guess bifurcation point for it will be some CPU manufacturer X starts to compete x86_64 architecture taking its place on mainstream market for laptop and/or workstation,

IsisCode gives you a good solution. Another one is to position border div inside parent div. Check this example http://jsfiddle.net/A2tu9/

UPD: You can also use pseudo element :after (:before), in this case HTML will not be polluted with extra markup:

.my-div {
    position: relative;
    padding: 4px;
    ...
}
.my-div:after {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    bottom: -3px;
    right: -3px;
    border: 1px #888 solid;
}

Demo: http://jsfiddle.net/A2tu9/191/

http://en.wikipedia.org/wiki/Stirling%27s_approximation Stirling approximation might help you. It is really helpful in dealing with problems on factorials related to huge numbers of the order of 10^10 and above.

You need to add import com.fasterxml.jackson.annotation.JsonInclude;

Add

@JsonInclude(JsonInclude.Include.NON_NULL)

on top of POJO

If you have nested POJO then

@JsonInclude(JsonInclude.Include.NON_NULL)

need to add on every values.

NOTE: JAXRS (Jersey) automatically handle this scenario 2.6 and above.

You can use forwarding to remove the previous activity from the activity stack while launching the next one. There's an example of this in the APIDemos, but basically all you're doing is calling finish() immediately after calling startActivity().

[>=1000]#,##0,"K";[<=-1000]-#,##0,"K";0

teylyn's answer is great. This just adds negatives beyond -1000 following the same format.

If someone used homebrew with Mojave or later:

export PATH=/usr/local/opt/[email protected]/bin:$PATH

change version if you need!

DateTime.Now is what you're searching for...

Unless you redirect stdout and stderr as the accepted answer suggests, this is not possible with execSync or spawnSync. Without redirecting stdout and stderr those commands only return stdout and stderr when the command is completed.

To do this without redirecting stdout and stderr, you are going to need to use spawn to do this but it's pretty straight forward:

var spawn = require('child_process').spawn;

//kick off process of listing files
var child = spawn('ls', ['-l', '/']);

//spit stdout to screen
child.stdout.on('data', function (data) {   process.stdout.write(data.toString());  });

//spit stderr to screen
child.stderr.on('data', function (data) {   process.stdout.write(data.toString());  });

child.on('close', function (code) { 
    console.log("Finished with code " + code);
});

I used an ls command that recursively lists files so that you can test it quickly. Spawn takes as first argument the executable name you are trying to run and as it's second argument it takes an array of strings representing each parameter you want to pass to that executable.

However, if you are set on using execSync and can't redirect stdout or stderr for some reason, you can open up another terminal like xterm and pass it a command like so:

var execSync = require('child_process').execSync;

execSync("xterm -title RecursiveFileListing -e ls -latkR /");

This will allow you to see what your command is doing in the new terminal but still have the synchronous call.

Is there a way ( I mean how do I ) set a system property in a maven project? I want to access a property from my test [...]

You can set system properties in the Maven Surefire Plugin configuration (this makes sense since tests are forked by default). From Using System Properties:

<project>
  [...]
  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-surefire-plugin</artifactId>
        <version>2.5</version>
        <configuration>
          <systemPropertyVariables>
            <propertyName>propertyValue</propertyName>
            <buildDirectory>${project.build.directory}</buildDirectory>
            [...]
          </systemPropertyVariables>
        </configuration>
      </plugin>
    </plugins>
  </build>
  [...]
</project>

and my webapp ( running locally )

Not sure what you mean here but I'll assume the webapp container is started by Maven. You can pass system properties on the command line using:

mvn -DargLine="-DpropertyName=propertyValue"

Update: Ok, got it now. For Jetty, you should also be able to set system properties in the Maven Jetty Plugin configuration. From Setting System Properties:

<project>
  ...
  <plugins>
    ...
      <plugin>
        <groupId>org.mortbay.jetty</groupId>
        <artifactId>maven-jetty-plugin</artifactId>
        <configuration>
         ...
         <systemProperties>
            <systemProperty>
              <name>propertyName</name>
              <value>propertyValue</value>
            </systemProperty>
            ...
         </systemProperties>
        </configuration>
      </plugin>
  </plugins>
</project>

And you can't use valueOf()?

Edit: Btw, there is nothing stopping you from using static { } in an enum.

In Python one would usually use lists for this purpose. Lists can be nested arbitrarily, thus allowing the creation of a 2D array. Not every sublist needs to be the same size, so that solves your other problem. Have a look at the examples I linked to.

In my case, Swift Mailer couldn't help either. I found a solution here: http://forum.powweb.com/showthread.php?t=73406 - so after EHLO command one needs to send STARTTLS command, enabling cryptography with stream_socket_enable_crypto( $connection, true, STREAM_CRYPTO_METHOD_TLS_CLIENT ); and again EHLO command. Only this allowed me to send emails with my "stubborn" SMTP server.

Docker for Mac users, here is the solution:

• 1. Find log file path by:

     $ docker inspect | grep log

• 2. SSH into the docker machine( suppose the name is default, if not, run docker-machine ls to find out):

     $ docker-machine ssh default

• 3. Change to root user(reference):

     $ sudo -i

• 4. Delete the log file content:

     $ echo "" > log_file_path_from_step1

Do you want to return a full row? Does the default row need to have default values or can it be an empty row? Do you want the default row to have the same column structure as the table in question?

Depending on your requirements, you might do something like this:

1) run the query and put results in a temp table (or table variable) 2) check to see if the temp table has results 3) if not, return an empty row by performing a select statement similar to this (in SQL Server):

select '' as columnA, '' as columnB, '' as columnC from #tempTable

Where columnA, columnB and columnC are your actual column names.

1.Right click on your java project.

2.Select "RUN AS".

3.Select "RUN CONFIGURATIOS...".

4.Here select your server at left side of the page and then u would see "CLASS PATH" tab at riht side,just click on it.

5.Here clilck on "USER ENTRIES" and select "ADD EXTERNAL JARS".

6.Select "ojdbc14.jar" file.

7.Click on Apply.

8.Click on Run.

9.Finally Restart your server then it would be execute.

Read file, parse each line into an integer and store into a list:

List<Integer> list = new ArrayList<Integer>();
File file = new File("file.txt");
BufferedReader reader = null;

try {
    reader = new BufferedReader(new FileReader(file));
    String text = null;

    while ((text = reader.readLine()) != null) {
        list.add(Integer.parseInt(text));
    }
} catch (FileNotFoundException e) {
    e.printStackTrace();
} catch (IOException e) {
    e.printStackTrace();
} finally {
    try {
        if (reader != null) {
            reader.close();
        }
    } catch (IOException e) {
    }
}

//print out the list
System.out.println(list);

No, there is nothing like this in CSS. You can, however, use JavaScript to calculate the number of children and apply styles.

This is not a PowerShell-specific answer, but you could authenticate against the share using "NET USE" first:

net use \\server\share /user:<domain\username> <password>

And then do whatever you need to do in PowerShell...

following should be your right solution

ren somefile.txt  somefile_%time:~0,2%%time:~3,2%-%DATE:/=%.txt

ASP.NET grants access from the configuration file as a matter of precedence. In case of a potential conflict, the first occurring grant takes precedence. So,

deny user="?" 

denies access to the anonymous user. Then

allow users="dan,matthew" 

grants access to that user. Finally, it denies access to everyone. This shakes out as everyone except dan,matthew is denied access.

Edited to add: and as @Deviant points out, denying access to unauthenticated is pointless, since the last entry includes unauthenticated as well. A good blog entry discussing this topic can be found at: Guru Sarkar's Blog

C99 N1256 standard draft

http://www.open-std.org/JTC1/SC22/WG14/www/docs/n1256.pdf

6.5.3.4 The sizeof operator:

3 When applied to an operand that has structure or union type, the result is the total number of bytes in such an object, including internal and trailing padding.

6.7.2.1 Structure and union specifiers:

13 ... There may be unnamed padding within a structure object, but not at its beginning.

and:

15 There may be unnamed padding at the end of a structure or union.

The new C99 flexible array member feature (struct S {int is[];};) may also affect padding:

16 As a special case, the last element of a structure with more than one named member may have an incomplete array type; this is called a flexible array member. In most situations, the flexible array member is ignored. In particular, the size of the structure is as if the flexible array member were omitted except that it may have more trailing padding than the omission would imply.

Annex J Portability Issues reiterates:

The following are unspecified: ...

• The value of padding bytes when storing values in structures or unions (6.2.6.1)

C++11 N3337 standard draft

http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3337.pdf

5.3.3 Sizeof:

2 When applied to a class, the result is the number of bytes in an object of that class including any padding required for placing objects of that type in an array.

9.2 Class members:

A pointer to a standard-layout struct object, suitably converted using a reinterpret_cast, points to its initial member (or if that member is a bit-field, then to the unit in which it resides) and vice versa. [ Note: There might therefore be unnamed padding within a standard-layout struct object, but not at its beginning, as necessary to achieve appropriate alignment. — end note ]

I only know enough C++ to understand the note :-)

Don't do this!

Stay away from putting the events inline with the elements! If you don't, you're missing the point of JQuery (or one of the biggest ones at least).

The reason why it's easy to define click() handlers one way and not the other is that the other way is simply not desirable. Since you're just learning JQuery, stick to the convention. Now is not the time in your learning curve for JQuery to decide that everyone else is doing it wrong and you have a better way!

Here's an approach which (ab)uses vim:

vim -c :sort -c :wq -E -s "${filename}"

The -c :sort -c :wq portion invokes commands to vim after the file opens. -E and -s are necessary so that vim executes in a "headless" mode which doesn't draw to the terminal.

This has almost no benefits over the sort -o "${filename}" "${filename}" approach except that it only takes the filename argument once.

This was useful for me to implement a formatter directive in a nanorc entry for .gitignore files. Here's what I used for that:

syntax "gitignore" "\.gitignore$"

formatter vim -c :sort -c :wq -E -s

unset is a function, not an operator. Use it like unset($_SESSION['key']); to unset that session key. You can, however, use session_destroy(); as well. (Make sure to start the session with session_start(); as well)

This will stream the byte data into json.

import io

obj = json.load(io.TextIOWrapper(response))

io.TextIOWrapper is preferred to the codec's module reader. https://www.python.org/dev/peps/pep-0400/

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$db = new mysqli('localhost', 'tmp', 'tmp', 'your_db');  
$db->set_charset('utf8mb4');

if($row = $db->query("SELECT id FROM games LIMIT 1")->fetch_row()) { //NULL or array
    $id = $row[0];
}

For string concatenation in C++, you should use the + operator.

nametext = "Your name is" + name;

if( in_array( $test, $array1 ) )
{
    // do this
}
else if( stristr( $test, 'commonpart' ) )
{
    // do this
}
else
{
    switch( $test )
    {
        case 1:
            // do this
            break;
        case 2:
            // do this
            break;
        default:
            // do this
            break;
    }
}

Even without seeing your JSON string you can tell from the error message that it is not the correct structure to be parsed into an instance of your class.

Gson is expecting your JSON string to begin with an object opening brace. e.g.

{

But the string you have passed to it starts with an open quotes

"

The simplest way to convert any variable to a string is to add an empty string to that variable.

5.41 + ''    // Result: the string '5.41'
Math.PI + '' // Result: the string '3.141592653589793'

I arranged a similar context as you described and I faced the same error. I managed to get it working by removing the " from the beginning and the end of the content and by replacing \/ with /.

Here is the code snippet:

var result = client.Execute(request);
var response = result.Content
    .Substring(1, result.Content.Length - 2)
    .Replace(@"\/","/");
byte[] d = Convert.FromBase64String(response);

As an alternative, you might consider using XML for the response format:

[WebGet(UriTemplate = "ReadFile/Convert", ResponseFormat = WebMessageFormat.Xml)]  
public string ExportToExcel() { //... }

On the client side:

request.AddHeader("Accept", "application/xml");
request.AddHeader("Content-Type", "application/xml");
request.OnBeforeDeserialization = resp => { resp.ContentType = "application/xml"; };

var result = client.Execute(request);
var doc = new System.Xml.XmlDocument();
doc.LoadXml(result.Content);
var xml = doc.InnerText;
byte[] d = Convert.FromBase64String(xml);

Try the following:

select * From emp_master 
where emp_last_name= 
case emp_first_name 
 when 'test'    then 'test' 
 when 'Mr name' then 'name'
end

Well, I would store instead a string concatenation of Locale.getISO3Language(), getISO3Country() and getVariant() as key, which would allow me to latter call Locale(String language, String country, String variant) constructor.

indeed, relying of displayLanguage implies using the langage of locale to display it, which make it locale dependant, contrary to iso language code.

As an example, en locale key would be storable as

en_EN
en_US

and so on ...

i don't know about converting into a byte array, but it's easy to convert it into a string:

import base64

with open("t.png", "rb") as imageFile:
    str = base64.b64encode(imageFile.read())
    print str

Source

In my case it is Asp.Net Core 3.1 API. I changed the HTTP GET method from public ActionResult GetValidationRulesForField( GetValidationRulesForFieldDto getValidationRulesForFieldDto) to public ActionResult GetValidationRulesForField([FromQuery] GetValidationRulesForFieldDto getValidationRulesForFieldDto) and its working.

Try this...

def is_int(x):
  absolute = abs(x)
  rounded = round(absolute)
  return absolute - rounded == 0

In Python 2 dict.keys() return a list, whereas in Python 3 it returns a generator.

You could only iterate over it's values else you may have to explicitly convert it to a list i.e. pass it to a list function.

Singletons are handy when you've got a lot code being run when you initialize and object. For example, when you using iBatis when you setup a persistence object it has to read all the configs, parse the maps, make sure its all correct, etc.. before getting to your code.

If you did this every time, performance would be much degraded. Using it in a singleton, you take that hit once and then all subsequent calls don't have to do it.

Since Nov 17, 2015 you have to authenticate users to make any (even such as "get some pictures who have specific hashtag") requests. See the Instagram Platform Changelog:

Apps created on or after Nov 17, 2015: All API endpoints require a valid access_token. Apps created before Nov 17, 2015: Unaffected by new API behavior until June 1, 2016.

this makes now all answers given here before June 1, 2016 no longer useful.

My opinion is, Instead of storing images directly to the database, It is recommended to store the image location in the database. As we compare both options, Storing images in the database is safe for security purpose. Disadvantage are

1. If database is corrupted, no way to retrieve.

2. Retrieving image files from db is slow when compare to other option.

On the other hand, storing image file location in db will have following advantages.

1. It is easy to retrieve.

2. If more than one images are stored, we can easily retrieve image information.

For me the issue was network connection, once I reconnected to my wifi, it could fetch the details and commit without any issues.

If you editing info.plist directly, below should help you, don't key in "YES" as string below:

<key>UIFileSharingEnabled</key>
<string>YES</string>

You should use this:

<key>UIFileSharingEnabled</key>
<true/>

if the node is not installed then

brew install node

If you have an older version of node install then remove it and install freshly that's the only suitable way.

Make sure to add the path in the environment file.

This helps to find PID using port number.

lsof -i tcp:port_number

There is no simple command available to find out the largest files/directories on a Linux/UNIX/BSD filesystem. However, combination of following three commands (using pipes) you can easily find out list of largest files:

# du -a /var | sort -n -r | head -n 10

If you want more human readable output try:

$ cd /path/to/some/var
$ du -hsx * | sort -rh | head -10

Where,

• Var is the directory you wan to search
• du command -h option : display sizes in human readable format (e.g., 1K, 234M, 2G).
• du command -s option : show only a total for each argument (summary).
• du command -x option : skip directories on different file systems.
• sort command -r option : reverse the result of comparisons.
• sort command -h option : compare human readable numbers. This is GNU sort specific option only.
• head command -10 OR -n 10 option : show the first 10 lines.

// apparently this is broken. Whoops for me!
java.util.Collections.fill(list,new Integer(0));

// this is better
Integer[] data = new Integer[60];
Arrays.fill(data,new Integer(0));
List<Integer> list = Arrays.asList(data);

I've solved a similar problem with an easier solution:

import codecs
csvReader = csv.reader(codecs.open('file.csv', 'rU', 'utf-16'))

The key was using the codecs module to open the file with the UTF-16 encoding, there are a lot more of encodings, check the documentation.

Here is a great guide how to do that, if your TV is android TV: https://pedronveloso.com/how-to-install-an-apk-on-android-tv/

Have you enabled 'unknown sources' from security and restrictions settings?

This happens where a column is explicitly set to a different collation or the default collation is different in the table queried.

if you have many tables you want to change collation on run this query:

select concat('ALTER TABLE ', t.table_name , ' CONVERT TO CHARACTER 
SET utf8 COLLATE utf8_unicode_ci;') from (SELECT table_name FROM 
information_schema.tables where table_schema='SCHRMA') t;

this will output the queries needed to convert all the tables to use the correct collation per column

Another perspective :

1. A class and its instance are two different things at the runtime. A class info is "shared" by all the instances of that class.
2. The non-static class variables belong to instances and the static variable belongs to class.
3. Just like an instance variables can be private or public, static variables can also be private or public.

j is an empty list, but you're attempting to write to element [0] in the first iteration, which doesn't exist yet.

Try the following instead, to add a new element to the end of the list:

for l in i:
    j.append(l)

Of course, you'd never do this in practice if all you wanted to do was to copy an existing list. You'd just do:

j = list(i)

Alternatively, if you wanted to use the Python list like an array in other languages, then you could pre-create a list with its elements set to a null value (None in the example below), and later, overwrite the values in specific positions:

i = [1, 2, 3, 5, 8, 13]
j = [None] * len(i)
#j == [None, None, None, None, None, None]
k = 0

for l in i:
   j[k] = l
   k += 1

The thing to realise is that a list object will not allow you to assign a value to an index that doesn't exist.

If you have access to an Intel Secure Key compatible CPU, you can generate real random numbers and strings using these libraries: https://github.com/JebteK/RdRand and https://www.rdrand.com/

Just download the latest version from here, include Jebtek.RdRand and add a using statement for it. Then, all you need to do is this:

bool isAvailable = RdRandom.GeneratorAvailable(); //Check to see if this is a compatible CPU
string key = RdRandom.GenerateKey(10); //Generate 10 random characters

Plus, you also get these additional capabilities:

string apiKey = RdRandom.GenerateAPIKey(); //Generate 64 random characters, useful for API keys
byte[] b = RdRandom.GenerateBytes(10); //Generate an array of 10 random bytes
uint i = RdRandom.GenerateUnsignedInt() //Generate a random unsigned int

If you don't have a compatible CPU to execute the code on, just use the RESTful services at rdrand.com. With the RdRandom wrapper library included in your project, you would just need to do this (you get 1000 free calls when you signup):

string ret = Randomizer.GenerateKey(<length>, "<key>");

You can also generate random byte arrays and unsigned integers as follows:

uint ret = Randomizer.GenerateUInt("<key>");
byte[] ret = Randomizer.GenerateBytes(<length>, "<key>");

.services-list .fa {
    transition: 0.5s;
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
    color: blue;
}
/* For me, @media query is the easiest way for disabling hover on mobile devices */
@media only screen and (min-width: 981px) {
    .services-list .fa:hover {
        color: #faa152;
        transition: 0.5s;
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}
/* You can actiate hover on mobile with :active */
.services-list .fa:active {
    color: #faa152;
    transition: 0.5s;
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
}
.services-list .fa-car {
  font-size:20px;
  margin-right:15px;
}
.services-list .fa-user {
  font-size:48px;
  margin-right:15px;
}
.services-list .fa-mobile {
  font-size:60px;
}

<head>
<title>Hover effects on mobile browsers</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
</head>

<body>
<div class="services-list">
<i class="fa fa-car"></i>
<i class="fa fa-user"></i>
<i class="fa fa-mobile"></i>
</div>
</body>

For example: https://jsfiddle.net/lesac4/jg9f4c5r/8/

You may also used foreach loop for display category image and etc from parent category given by parent id.

for example, i am giving 74 id of parent category, then i will display the image from child category and its slug also.

**<?php
$catTerms = get_terms('product_cat', array('hide_empty' => 0, 'orderby' => 'ASC', 'child_of'=>'74'));
foreach($catTerms as $catTerm) : ?>
<?php $thumbnail_id = get_woocommerce_term_meta( $catTerm->term_id, 'thumbnail_id', true ); 

// get the image URL
$image = wp_get_attachment_url( $thumbnail_id );  ?>
<li><img src="<?php echo $image; ?>" width="152" height="245"/><span><?php echo $catTerm->name; ?></span></li>
<?php endforeach; ?>** 

This is a problem of loaded vs. runtime configuration

It's important to recognize that a syntax error or parse error happens during the compile or parsing step, which means that PHP will bail before it's even had a chance to execute any of your code. So if you are modifying PHP's display_errors configuration during runtime, (this includes anything from using ini_set in your code to using .htaccess, which is a runtime configuration file) then only the default loaded configuration settings are in play.

How to always avoid WSOD in development

To avoid a WSOD you want to make sure that your loaded configuration file has display_errors on and error_reporting set to -1 (this is the equivalent E_ALL because it ensures all bits are turned on regardless of which version of PHP you're running). Don't hardcode the constant value of E_ALL, because that value is subject to change between different versions of PHP.

Loaded configuration is either your loaded php.ini file or your apache.conf or httpd.conf or virtualhost file. Those files are only read once during the startup stage (when you first start apache httpd or php-fpm, for example) and only overridden by runtime configuration changes. Making sure that display_errors = 1 and error_reporting = -1 in your loaded configuration file ensures that you will never see a WSOD regardless of syntax or parse error that occur before a runtime change like ini_set('display_errors', 1); or error_reporting(E_ALL); can take place.

How to find your (php.ini) loaded configuration files

To locate your loaded configuration file(s) just create a new PHP file with only the following code...

<?php
phpinfo();

Then point your browser there and look at Loaded Configuration File and Additional .ini files parsed, which are usually at the top of your phpinfo() and will include the absolute path to all your loaded configuration files.

If you see (none) instead of the file, that means you don't have a php.ini in Configuration File (php.ini) Path. So you can download the stock php.ini bundled with PHP from here and copy that to your configuration file path as php.ini then make sure your php user has sufficient permissions to read from that file. You'll need to restart httpd or php-fpm to load it in. Remember, this is the development php.ini file that comes bundled with the PHP source. So please don't use it in production!

Just don't do this in production

This really is the best way to avoid a WSOD in development. Anyone suggesting that you put ini_set('display_errors', 1); or error_reporting(E_ALL); at the top of your PHP script or using .htaccess like you did here, is not going to help you avoid a WSOD when a syntax or parse error occurs (like in your case here) if your loaded configuration file has display_errors turned off.

Many people (and stock installations of PHP) will use a production-ini file that has display_errors turned off by default, which typically results in this same frustration you've experienced here. Because PHP already has it turned off when it starts up, then encounters a syntax or parse error, and bails with nothing to output. You expect that your ini_set('display_errors',1); at the top of your PHP script should have avoided that, but it won't matter if PHP can't parse your code because it will never have reached the runtime.

Base64 encoding converts three 8-bit bytes (0-255) into four 6-bit bytes (0-63 aka base64). Each of the four bytes indexes an ASCII string which represents the final output as four 8-bit ASCII characters. The indexed string is typically 'A-Za-z0-9+/' with '=' used as padding. This is why encoded data is 4/3 longer.

Base64 decoding is the inverse process. And as one would expect, the decoded data is 3/4 as long.

While base64 encoding can encode plain text, its real benefit is encoding non-printable characters which may be interpreted by transmitting systems as control characters.

I suggest the original poster render $z as bytes with each bit having meaning to the application. Rendering non-printable characters as text typically invokes Unicode which produces glyphs based on your system's localization.

Base64decode("the answer to life the universe and everything") = 00101010

There is a function in c called isdigit(). That will suit you just fine. Example:

int var1 = 'h';
int var2 = '2';

if( isdigit(var1) )
{
   printf("var1 = |%c| is a digit\n", var1 );
}
else
{
   printf("var1 = |%c| is not a digit\n", var1 );
}
if( isdigit(var2) )
{
  printf("var2 = |%c| is a digit\n", var2 );
}
else
{
   printf("var2 = |%c| is not a digit\n", var2 );
}

From here

The error for me was that I read the SQL statement from a text file, and the text file was saved in the UTF-8 with BOM (byte order mark) format.

To solve this, I opened the file in Notepad++ and under Encoding, chose UTF-8. Alternatively you can remove the first three bytes of the file with a hex editor.

Junit is included by default with Eclipse (at least the Java EE version I'm sure). You may just need to add the view to your perspective.

I normally use the HttpPostedFileBase parameter only in Mvc Controllers. When dealing with ApiControllers try checking the HttpContext.Current.Request.Files property for incoming files instead:

[HttpPost]
public string UploadFile()
{
    var file = HttpContext.Current.Request.Files.Count > 0 ?
        HttpContext.Current.Request.Files[0] : null;

    if (file != null && file.ContentLength > 0)
    {
        var fileName = Path.GetFileName(file.FileName);

        var path = Path.Combine(
            HttpContext.Current.Server.MapPath("~/uploads"),
            fileName
        );

        file.SaveAs(path);
    }

    return file != null ? "/uploads/" + file.FileName : null;
}

The existing JSON replacements where too much for me, so I wrote my own function. This seems to work, but I might have missed several edge cases (that don't occur in my project). And will probably not work for any pre-existing objects, only for self-made data.

function simpleJSONstringify(obj) {
    var prop, str, val,
        isArray = obj instanceof Array;

    if (typeof obj !== "object") return false;

    str = isArray ? "[" : "{";

    function quote(str) {
        if (typeof str !== "string") str = str.toString();
        return str.match(/^\".*\"$/) ? str : '"' + str.replace(/"/g, '\\"') + '"'
    }

    for (prop in obj) {
        if (!isArray) {
            // quote property
            str += quote(prop) + ": ";
        }

        // quote value
        val = obj[prop];
        str += typeof val === "object" ? simpleJSONstringify(val) : quote(val);
        str += ", ";
    }

    // Remove last colon, close bracket
    str = str.substr(0, str.length - 2)  + ( isArray ? "]" : "}" );

    return str;
}

I have been scratching my head over this today.

My solution is to change the [FromBody] to a HttpRequestMessage, essentially moving up the HTTP stack.

In my case I am sending data across the wire which is zipped json which is then base64'd. All this from an android app.

The original signature of my web endpoint looked like this (using [FromBody]) :

My fix for this issue was to revert to using a HttpRequestMessage for the signature of my endpoint.

You can then get access to the post data using this line of code:

This works and allows you access to the raw untouched post data. You don't have to mess around with fiddler putting an = sign at the beginning of your string or changing the content-type.

As an aside, I first tried to following one of the answers above which was to change the content type to: "Content-Type: application/x-www-form-urlencoded". For raw data this is bad advice because it strips out + characters.

So a base64 string that starts like this: "MQ0AAB+LCAAAAAA" ends up like this "MQ0AAB LCAAAAAA"! Not what you want.

Another benefit of using HttpRequestMessage is that you get access to all the http headers from within your endpoint.

in my case, it was a confilict with IntelliJ , I've resolved it by building the project from command line and it worked!

See http://www.w3schools.com/tags/att_input_accept.asp:

The accept attribute is supported in all major browsers, except Internet Explorer and Safari. Definition and Usage

The accept attribute specifies the types of files that the server accepts (that can be submitted through a file upload).

Note: The accept attribute can only be used with <input type="file">.

Tip: Do not use this attribute as a validation tool. File uploads should be validated on the server.

Syntax <input accept="audio/*|video/*|image/*|MIME_type" />

Tip: To specify more than one value, separate the values with a comma (e.g. <input accept="audio/*,video/*,image/*" />.

You have to wrap your Javascript-Code with $(document).ready(function(){});Look this JSfiddle.

JS Code:

$(document).ready(function() {

    $("#clicker").click(function () {
        alert("Hello!");
        $(".hide_div").hide();    
    });
});

This is just an add-on to the solution in case you want to compute not only unique values but other aggregate functions:

df.groupby(['group']).agg(['min','max','count','nunique'])

Hope you find it useful

You can install mod_security and put in /etc/modsecurity/modsecurity.conf:

SecRuleEngine On
SecAuditEngine On
SecAuditLog /var/log/apache2/modsec_audit.log
SecRequestBodyAccess on
SecAuditLogParts ABIJDFHZ

You need add Firebase Gradle buildscript dependency in build.gradle (project-level)

classpath 'com.google.gms:google-services:3.1.0'

and add Firebase plugin for Gradle in app/build.gradle

apply plugin: 'com.google.gms.google-services'

build.gradle will include these new dependencies:
    compile 'com.google.firebase:firebase-database:11.0.4'

Source: Android Studio Assistant

Use the New Java File classes in Java >=7.

Create the below method and import the necessary libs.

public static void copyFile( File from, File to ) throws IOException {
    Files.copy( from.toPath(), to.toPath() );
} 

Use the created method as below within main:

File dirFrom = new File(fileFrom);
File dirTo = new File(fileTo);

try {
        copyFile(dirFrom, dirTo);
} catch (IOException ex) {
        Logger.getLogger(TestJava8.class.getName()).log(Level.SEVERE, null, ex);
}

NB:- fileFrom is the file that you want to copy to a new file fileTo in a different folder.

Credits - @Scott: Standard concise way to copy a file in Java?

Generally the practice would be to pass data as a DateTime with a "timezone" of UTC and then pass a TimeZoneInfo object and when you are ready to display the data, you use the TimeZoneInfo object to convert the UTC DateTime.

The other option is to set the DateTime with the current timezone, and then make sure the "timezone" is unknown for the DateTime object, then make sure the DateTime is again passed with a TimeZoneInfo that indicates the TimeZone of the DateTime passed.

As others have indicated here, it would be nice if Microsoft got on top of this and created one nice object to do it all, but for now you have to deal with two objects.

You need to use the readLine() method in class BufferedReader. Create a new object from that class and operate this method on him and save it to a string.

BufferReader Javadoc

try to ad the following in your CSS:

body, html{
    padding:0;
    margin:0;
}

You can use LINQ for this

var list = new List<int>();
var sum = list.Sum();

and for a List of strings like Roy Dictus said you have to convert

list.Sum(str => Convert.ToInt32(str));

It's possible to toggle a class on hover strictly within a component's template, however, it's not a practical solution for obvious reasons. For prototyping on the other hand, I find it useful to not have to define data properties or event handlers within the script.

Here's an example of how you can experiment with icon colors using Vuetify.

new Vue({_x000D_
  el: '#app'_x000D_
})

<link href="https://fonts.googleapis.com/css?family=Roboto:100,300,400,500,700,900|Material+Icons" rel="stylesheet">_x000D_
<link href="https://cdn.jsdelivr.net/npm/vuetify/dist/vuetify.min.css" rel="stylesheet">_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>_x000D_
<script src="https://cdn.jsdelivr.net/npm/vuetify/dist/vuetify.js"></script>_x000D_
_x000D_
<div id="app">_x000D_
  <v-app>_x000D_
    <v-toolbar color="black" dark>_x000D_
      <v-toolbar-items>_x000D_
        <v-btn icon>_x000D_
          <v-icon @mouseenter="e => e.target.classList.toggle('pink--text')" @mouseleave="e => e.target.classList.toggle('pink--text')">delete</v-icon>_x000D_
        </v-btn>_x000D_
        <v-btn icon>_x000D_
          <v-icon @mouseenter="e => e.target.classList.toggle('blue--text')" @mouseleave="e => e.target.classList.toggle('blue--text')">launch</v-icon>_x000D_
        </v-btn>_x000D_
        <v-btn icon>_x000D_
          <v-icon @mouseenter="e => e.target.classList.toggle('green--text')" @mouseleave="e => e.target.classList.toggle('green--text')">check</v-icon>_x000D_
        </v-btn>_x000D_
      </v-toolbar-items>_x000D_
    </v-toolbar>_x000D_
  </v-app>_x000D_
</div>

<h4>Order List</h4>
<ul>
    <li ng-repeat="val in filter_option.order">
        <span>
            <input title="{{filter_option.order_name[$index]}}" type="radio" ng-model="filter_param.order_option" ng-value="'{{val}}'" />
            &nbsp;{{filter_option.order_name[$index]}}
        </span>
        <select title="" ng-model="filter_param[val]">
            <option value="asc">Asc</option>
            <option value="desc">Desc</option>
        </select>
    </li>
</ul>

Use --table to tell pg_dump what table it has to backup:

pg_dump --host localhost --port 5432 --username postgres --format plain --verbose --file "<abstract_file_path>" --table public.tablename dbname

I had the similar issue. The problem was in the passwords: the Keystore and private key used different passwords. (KeyStore explorer was used)

After creating Keystore with the same password as private key had the issue was resolved.

You need to assign display: block; property to the wrapping anchor. Otherwise it won't wrap correctly.

<a style="display:block" href="http://justinbieber.com">
  <div class="xyz">My div contents</div>
</a>

Using Series.map with Series.fillna

If your column contains more strings than only female and male, Series.map will fail in this case since it will return NaN for other values.

That's why we have to chain it with fillna:

Example why .map fails:

df = pd.DataFrame({'female':['male', 'female', 'female', 'male', 'other', 'other']})

   female
0    male
1  female
2  female
3    male
4   other
5   other

df['female'].map({'female': '1', 'male': '0'})

0      0
1      1
2      1
3      0
4    NaN
5    NaN
Name: female, dtype: object

For the correct method, we chain map with fillna, so we fill the NaN with values from the original column:

df['female'].map({'female': '1', 'male': '0'}).fillna(df['female'])

0        0
1        1
2        1
3        0
4    other
5    other
Name: female, dtype: object

I know this topic is old, but there are no correct answers.

rotation transform rotates the element from its center, so, a wider element will rotate this way:

Applying overflow: hidden hides the longest dimension as you can see here:

img{_x000D_
  border: 1px solid #000;_x000D_
  transform:          rotate(270deg);_x000D_
  -ms-transform:      rotate(270deg);_x000D_
  -moz-transform:     rotate(270deg);_x000D_
  -webkit-transform:  rotate(270deg);_x000D_
  -o-transform:       rotate(270deg);_x000D_
}_x000D_
.imagetest{_x000D_
  overflow: hidden_x000D_
}

<article>_x000D_
<section class="photo">_x000D_
<div></div>_x000D_
<div class="imagetest">_x000D_
<img src="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSqVNRUwpfOwZ5n4kvVXea2VHd6QZGACVVaBOl5aJ2EGSG-WAIF" width=100%/>_x000D_
</div>_x000D_
</section>_x000D_
</article>

So, what I do is some calculations, in my example the picture is 455px width and 111px height and we have to add some margins based on these dimensions:

• left margin: (width - height)/2
• top margin: (height - width)/2

in CSS:

margin: calc((455px - 111px)/2) calc((111px - 455px)/2);

Result:

img{_x000D_
  border: 1px solid #000;_x000D_
  transform:          rotate(270deg);_x000D_
  -ms-transform:      rotate(270deg);_x000D_
  -moz-transform:     rotate(270deg);_x000D_
  -webkit-transform:  rotate(270deg);_x000D_
  -o-transform:       rotate(270deg);_x000D_
  /* 455 * 111 */_x000D_
  margin: calc((455px - 111px)/2) calc((111px - 455px)/2);_x000D_
}

<article>_x000D_
<section class="photo">_x000D_
<div></div>_x000D_
<div class="imagetest">_x000D_
<img src="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSqVNRUwpfOwZ5n4kvVXea2VHd6QZGACVVaBOl5aJ2EGSG-WAIF" />_x000D_
</div>_x000D_
</section>_x000D_
</article>

I hope it helps someone!

jQuery(function() {_x000D_
  jQuery('#showall').click(function() {_x000D_
    jQuery('.targetDiv').show();_x000D_
  });_x000D_
  jQuery('.showSingle').click(function() {_x000D_
    jQuery('.targetDiv').hide();_x000D_
    jQuery('#div' + $(this).attr('target')).show();_x000D_
  });_x000D_
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>_x000D_
<div class="buttons">_x000D_
  <a id="showall">All</a>_x000D_
  <a class="showSingle" target="1">Div 1</a>_x000D_
  <a class="showSingle" target="2">Div 2</a>_x000D_
  <a class="showSingle" target="3">Div 3</a>_x000D_
  <a class="showSingle" target="4">Div 4</a>_x000D_
</div>_x000D_
_x000D_
<div id="div1" class="targetDiv">Lorum Ipsum1</div>_x000D_
<div id="div2" class="targetDiv">Lorum Ipsum2</div>_x000D_
<div id="div3" class="targetDiv">Lorum Ipsum3</div>_x000D_
<div id="div4" class="targetDiv">Lorum Ipsum4</div>

http://jsfiddle.net/XwN2L/

You could use:

NSString *stringWithoutSpaces = [myString 
   stringByReplacingOccurrencesOfString:@" " withString:@""];

If you like a chained operation, you can also use compress function:

test = pd.Series({
383:    3.000000,
663:    1.000000,
726:    1.000000,
737:    9.000000,
833:    8.166667
})

test.compress(lambda x: x != 1)

# 383    3.000000
# 737    9.000000
# 833    8.166667
# dtype: float64

I was pleased when I discovered the 0 register. If you yank text without assigning it to a particular register, then it will be assigned to the 0 register, as well as being saved in the default " register. The difference between the 0 and " registers is that 0 is only populated with yanked text, whereas the default register is also populated with text deleted using d/D/x/X/c/C/s/S commands.

I find this useful when I want to copy some text, delete something and replace it with the copied text. The following steps illustrate an example:

• Yank the text you want to copy with y[motion] - this text is saved in " and 0 registers
• Delete the text you want to replace with d[motion] - this text is saved in " register
• Paste the yanked text with "0p

where " is the command to use a register for the next command.

On the final step, if you were to paste from the default register (with p), it would use the text that you had just deleted (probably not what you intended).

Note that p or P pastes from the default register. The longhand equivalent would be ""p (or ""P) and "0 holds the last yank, "1holds the last delete or change.

For more info see :help registers.

Just wondering why you are using 2 directives?

It seems like, in this case it would be more straightforward to have a controller as the parent - handle adding the data from your service to its $scope, and pass the model you need from there into your warrantyDirective.

Or for that matter, you could use 0 directives to achieve the same result. (ie. move all functionality out of the separate directives and into a single controller).

It doesn't look like you're doing any explicit DOM transformation here, so in this case, perhaps using 2 directives is overcomplicating things.

Alternatively, have a look at the Angular documentation for directives: http://docs.angularjs.org/guide/directive The very last example at the bottom of the page explains how to wire up dependent directives.

The below command worked for me

sudo service postgresql restart

You need to do encode on tmp[0], not on tmp.

tmp is not a string. It contains a (Unicode) string.

Try running type(tmp) and print dir(tmp) to see it for yourself.

If you are already using Apache Commons Lang, the RandomUtils makes this a one-liner:

byte[] randomBytes = RandomUtils.nextBytes(20);

Note: this does not produce cryptographically-secure bytes.

Try CSS

<body style="overflow: hidden">

Don't worry. Just uninstall jdk as well as jdk updates Before re installing jdk ,delete the oracle folder inside programData hidden folder in C:\ Then reinstall. Set the following,

JAVA_HOME
CLASSPATH
PATH
JRE_HOME ( is optional)

It all depends on the situation. MS SQL Indexed views are faster than a normal view or query but indexed views can not be used in a mirrored database invironment (MS SQL).

A view in any kind of a loop will cause serious slowdown because the view is repopulated each time it is called in the loop. Same as a query. In this situation a temporary table using # or @ to hold your data to loop through is faster than a view or a query.

So it all depends on the situation.

TLDR; Neither use the synchronized modifier nor the synchronized(this){...} expression but synchronized(myLock){...} where myLock is a final instance field holding a private object.

The difference between using the synchronized modifier on the method declaration and the synchronized(..){ } expression in the method body are this:

• The synchronized modifier specified on the method's signature
  1. is visible in the generated JavaDoc,
  2. is programmatically determinable via reflection when testing a method's modifier for Modifier.SYNCHRONIZED,
  3. requires less typing and indention compared to synchronized(this) { .... }, and
  4. (depending on your IDE) is visible in the class outline and code completion,
  5. uses the this object as lock when declared on non-static method or the enclosing class when declared on a static method.
• The synchronized(...){...} expression allows you
  1. to only synchronize the execution of parts of a method's body,
  2. to be used within a constructor or a (static) initialization block,
  3. to choose the lock object which controls the synchronized access.

However, using the synchronized modifier or synchronized(...) {...} with this as the lock object (as in synchronized(this) {...}), have the same disadvantage. Both use it's own instance as the lock object to synchronize on. This is dangerous because not only the object itself but any other external object/code that holds a reference to that object can also use it as a synchronization lock with potentially severe side effects (performance degradation and deadlocks).

Therefore best practice is to neither use the synchronized modifier nor the synchronized(...) expression in conjunction with this as lock object but a lock object private to this object. For example:

public class MyService {
    private final lock = new Object();

    public void doThis() {
       synchronized(lock) {
          // do code that requires synchronous execution
        }
    }

    public void doThat() {
       synchronized(lock) {
          // do code that requires synchronous execution
        }
    }
}

You can also use multiple lock objects but special care needs to be taken to ensure this does not result in deadlocks when used nested.

public class MyService {
    private final lock1 = new Object();
    private final lock2 = new Object();

    public void doThis() {
       synchronized(lock1) {
          synchronized(lock2) {
              // code here is guaranteed not to be executes at the same time
              // as the synchronized code in doThat() and doMore().
          }
    }

    public void doThat() {
       synchronized(lock1) {
              // code here is guaranteed not to be executes at the same time
              // as the synchronized code in doThis().
              // doMore() may execute concurrently
        }
    }

    public void doMore() {
       synchronized(lock2) {
              // code here is guaranteed not to be executes at the same time
              // as the synchronized code in doThis().
              // doThat() may execute concurrently
        }
    }
}

Generally

static: no need to create object we can directly call using

ClassName.methodname()

Non Static: we need to create a object like

ClassName obj=new ClassName()
obj.methodname();

NEVER EVER use a selector like DATE(datecolumns) = '2012-12-24' - it is a performance killer:

• it will calculate DATE() for all rows, including those, that don't match
• it will make it impossible to use an index for the query

It is much faster to use

SELECT * FROM tablename 
WHERE columname BETWEEN '2012-12-25 00:00:00' AND '2012-12-25 23:59:59'

as this will allow index use without calculation.

EDIT

As pointed out by Used_By_Already, in the time since the inital answer in 2012, there have emerged versions of MySQL, where using '23:59:59' as a day end is no longer safe. An updated version should read

SELECT * FROM tablename 
WHERE columname >='2012-12-25 00:00:00'
AND columname <'2012-12-26 00:00:00'

The gist of the answer, i.e. the avoidance of a selector on a calculated expression, of course still stands.

Custom made :) you can use dropdown hori/vertical offset properties to position the list currently, also try android:spinnerMode="dialog" it is cooler.

Layout

  <LinearLayout
        android:layout_marginBottom="20dp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <AutoCompleteTextView
            android:layout_weight="1"
            android:id="@+id/edit_ip"
            android:text="default value"
            android:layout_width="0dp"
            android:layout_height= "wrap_content"/>
        <Spinner
            android:layout_marginRight="20dp"
            android:layout_width="30dp"
            android:layout_height="50dp"
            android:id="@+id/spinner_ip"
            android:spinnerMode="dropdown"
            android:entries="@array/myarray"/>
 </LinearLayout>

Java

          //set auto complete
        final AutoCompleteTextView textView = (AutoCompleteTextView) findViewById(R.id.edit_ip);
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line, getResources().getStringArray(R.array.myarray));
        textView.setAdapter(adapter);
        //set spinner
        final Spinner spinner = (Spinner) findViewById(R.id.spinner_ip);
        spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                textView.setText(spinner.getSelectedItem().toString());
                textView.dismissDropDown();
            }
            @Override
            public void onNothingSelected(AdapterView<?> parent) {
                textView.setText(spinner.getSelectedItem().toString());
                textView.dismissDropDown();
            }
        });

res/values/string

<string-array name="myarray">
    <item>value1</item>
    <item>value2</item>
</string-array>

Was that useful??

Use BufferedReader and InputStreamReader classes.

BufferedReader buffer=new BufferedReader(new InputStreamReader(System.in));
String line=buffer.readLine();

Or use java.util.Scanner class methods.

Scanner scan=new Scanner(System.in);

I also needed a random id, I went with using base64 encoding:

btoa(Math.random()).substring(0,12)

Pick however many characters you want, the result is usually at least 24 characters.

There is an open-source javascript plugin that does just that - debugout.js

Debugout.js records and save console.logs so your application can access them. Full disclosure, I wrote it. It formats different types appropriately, can handle nested objects and arrays, and can optionally put a timestamp next to each log. It also toggles live-logging in one place.

In my case, I forgot to add my IP address in firewall rules in Azure, basically as I was unable to connect to the database I was getting this error. So specifically for my case, I added my IP address in database firewall rules in Azure and it all worked well. Apart from this, it could be the issue of proxy/internet connection/DB username password/DB connection string etc. OR obviously, you might have pending migrations for which you need to run Update-Database command.

Get all file item and filter them by suffix and then use PowerShell Excel VBA object to save the excel files to csv files.

$excelApp = New-Object -ComObject Excel.Application 
$excelApp.DisplayAlerts = $false 

$ExcelFiles | ForEach-Object { 
    $workbook = $excelApp.Workbooks.Open($_.FullName) 
    $csvFilePath = $_.FullName -replace "\.xlsx$", ".csv" 
    $workbook.SaveAs($csvFilePath, [Microsoft.Office.Interop.Excel.XlFileFormat]::xlCSV) 
    $workbook.Close() 
} 

You can find the complete sample here How to convert Excel xlsx file to csv file in batch by PowerShell

You should be able to get the text using getText() (for the option element you got using getFirstSelectedOption()):

Select select = new Select(driver.findElement(By.xpath("//select")));
WebElement option = select.getFirstSelectedOption();
String defaultItem = option.getText();
System.out.println(defaultItem );

Start pgAdmin, connect to the server, click on the database name, and select the statistics tab. You will see the size of the database at the bottom of the list.

Then if you click on another database, it stays on the statistics tab so you can easily see many database sizes without much effort. If you open the table list, it shows all tables and their sizes.

The method show() must be called from the User-Interface (UI) thread, while doInBackground() runs on different thread which is the main reason why AsyncTask was designed.

You have to call show() either in onProgressUpdate() or in onPostExecute().

For example:

class ExampleTask extends AsyncTask<String, String, String> {

    // Your onPreExecute method.

    @Override
    protected String doInBackground(String... params) {
        // Your code.
        if (condition_is_true) {
            this.publishProgress("Show the dialog");
        }
        return "Result";
    }

    @Override
    protected void onProgressUpdate(String... values) {
        super.onProgressUpdate(values);
        connectionProgressDialog.dismiss();
        downloadSpinnerProgressDialog.show();
    }
}

If you get below state and rebase does not work anymore,

$ git status
rebase in progress; onto (null)
You are currently rebasing.
  (all conflicts fixed: run "git rebase --continue")

Then first run,

$ git rebase -quit

And then restore previous state from reflog,

$ git reflog
97f7c6f (HEAD, origin/master, origin/HEAD) HEAD@{0}: pull --rebase: checkout 97f7c6f292d995b2925c2ea036bb4823a856e1aa
4035795 (master) HEAD@{1}: commit (amend): Adding 2nd commit
d16be84 HEAD@{2}: commit (amend): Adding 2nd commit
8577ca8 HEAD@{3}: commit: Adding 2nd commit
3d2088d HEAD@{4}: reset: moving to head~
52eec4a HEAD@{5}: commit: Adding initial commit

Using,

$ git checkout HEAD@{1} #or
$ git checkout master #or
$ git checkout 4035795 #or

XAMPP Apache + MariaDB + PHP + Perl (X -any OS)

• After successful installation execute xampp-control.exe in XAMPP folder

• Start Apache and MySQL

• Open browser and in url type localhost or 127.0.0.1

• then you are welcomed with dashboard

By default your port is listing with 80.If you want you can change it to your desired port number in httpd.conf file.(If port 80 is already using with other app then you have to change it).

For example you changed port number 80 to 8090 then you can run as 'localhost:8090' or '127.0.0.1:8090'

writing data in tables declared declare @tb and after joining with other tables, I realized that the response time compared to temporary tables tempdb .. # tb is much higher.

When I join them with @tb the time is much longer to return the result, unlike #tm, the return is almost instantaneous.

I did tests with a 10,000 rows join and join with 5 other tables

Here is a Powershell alternative to @UuDdLrLrSs answer.

Get-Service workstation | Restart-Service -Force

where java works for me to list all java exe but java -verbose tells you which rt.jar is used and thus which jre (full path):

[Opened C:\Program Files\Java\jre6\lib\rt.jar]
...

Edit: win7 and java:

java version "1.6.0_20"
Java(TM) SE Runtime Environment (build 1.6.0_20-b02)
Java HotSpot(TM) 64-Bit Server VM (build 16.3-b01, mixed mode)

Tchalvak, who commented on the original question, hit the nail on the head for me. I've been editing (I use Debian):

/etc/php5/apache2/php.ini

...which had the correct timezone for me and was the only .ini file being loaded with date.timezone within it, but I was receiving the above error when I ran a script through Bash. I had no idea that I should have been editing:

/etc/php5/cli/php.ini

as well. (Well, for me it was 'as well', for you it might be different of course, but I'm going to keep my Apache and CLI versions of php.ini synchronised now).

SPAN class code. Stylesheet:

<link rel="stylesheet" type="text/css" href="http://cdn.webrupee.com/font">

Now use the below mentioned code to type Indian Rupee symbol,

<span class="WebRupee">Rs.</span>

Once the popular font families will be updated to Unicode 6.0.0, then you will be able to type Indian Rupee Symbol by typing ₹ in HTML editor.

To install IMAP on PHP 7.0.32 on Ubuntu 16.04. Go to the given link and based on your area select link. In my case, I select a link from the Asia section. Then a file will be downloaded. just click on the file to install IMAP .Then restart apache

https://packages.ubuntu.com/xenial/all/php-imap/download.

to check if IMAP is installed check phpinfo file.incase of successful installation IMAP c-Client Version 2007f will be shown.

Don't forget the awesome

git fetch -p

which fetches and prunes all origins.

^[^<>]+$

The caret in the character class ([^) means match anything but, so this means, beginning of string, then one or more of anything except < and >, then the end of the string.

You don't assign values outside of the if statements ... and it is possible that credit might be something other than 0, 1, 2, or 3, as @iomaxx noted.

Try changing the separate if statements to a single if/else if/else if/else. Or assign default values up at the top.

Just need to add a space:

.area2 .item
{
    ...
}

You can pass multiple arguments like this.

List<object> arguments = new List<object>();
arguments.Add("first");      //argument 1
arguments.Add(new Object()); //argument 2
// ...
arguments.Add(10);           //argument n

backgroundWorker.RunWorkerAsync(arguments);

private void worker_DoWork(object sender, DoWorkEventArgs e) 
{
  List<object> genericlist = e.Argument as List<object>;
  //extract your multiple arguments from 
  //this list and cast them and use them. 
}

Here is an example which you could use:

<html>
    <body>
        <form action="btnclick.php" method="get">
            <input type="submit" name="on" value="on">
            <input type="submit" name="off" value="off">
        </form>
    </body>
</html>
<?php
    if(isset($_GET['on'])) {
        onFunc();
    }
    if(isset($_GET['off'])) {
        offFunc();
    }

    function onFunc(){
        echo "Button on Clicked";
    }
    function offFunc(){
        echo "Button off clicked";
    }
?>

i found i had to do something akin to

=(countifs (A1:A196,"yes", j1:j196, "agree") + (countifs (A1:A196,"no", j1:j196, "agree"))

Since the code sample is a bit outdated I thought I'd share a more recent approach, using Angular 4.3 and the new(er) HttpClient API, @angular/common/http

export class FileUpload {

@ViewChild('selectedFile') selectedFileEl;

uploadFile() {
let params = new HttpParams();

let formData = new FormData();
formData.append('upload', this.selectedFileEl.nativeElement.files[0])

const options = {
    headers: new HttpHeaders().set('Authorization', this.loopBackAuth.accessTokenId),
    params: params,
    reportProgress: true,
    withCredentials: true,
}

this.http.post('http://localhost:3000/api/FileUploads/fileupload', formData, options)
.subscribe(
    data => {
        console.log("Subscribe data", data);
    },
    (err: HttpErrorResponse) => {
        console.log(err.message, JSON.parse(err.error).error.message);
    }
)
.add(() => this.uploadBtn.nativeElement.disabled = false);//teardown
}

when you pass an object within curly braces as an argument to a function with one parameter , you're assigning this object to a variable which is the parameter in this case

You can implement the interface with a class, then you can deal with initializing the members in the constructor:

class IXClass implements IX {
    a: string;
    b: any;
    c: AnotherType;

    constructor(obj: IX);
    constructor(a: string, b: any, c: AnotherType);
    constructor() {
        if (arguments.length == 1) {
            this.a = arguments[0].a;
            this.b = arguments[0].b;
            this.c = arguments[0].c;
        } else {
            this.a = arguments[0];
            this.b = arguments[1];
            this.c = arguments[2];
        }
    }
}

Another approach is to use a factory function:

function ixFactory(a: string, b: any, c: AnotherType): IX {
    return {
        a: a,
        b: b,
        c: c
    }
}

Then you can simply:

var ix: IX = null;
...

ix = new IXClass(...);
// or
ix = ixFactory(...);

The way

As pointed out by @c00000fd in the comments. Microsoft is changing this. And while many people don't use the latest version of their compiler I suspect this change makes this approach unquestionably bad. And while it's a fun exercise I would recommend people to simply embed a build date into their binary through any other means necessary if it's important to track the build date of the binary itself.

This can be done with some trivial code generation which probably is the first step in your build script already. That, and the fact that ALM/Build/DevOps tools help a lot with this and should be preferred to anything else.

I leave the rest of this answer here for historical purposes only.

The new way

I changed my mind about this, and currently use this trick to get the correct build date.

#region Gets the build date and time (by reading the COFF header)

// http://msdn.microsoft.com/en-us/library/ms680313

struct _IMAGE_FILE_HEADER
{
    public ushort Machine;
    public ushort NumberOfSections;
    public uint TimeDateStamp;
    public uint PointerToSymbolTable;
    public uint NumberOfSymbols;
    public ushort SizeOfOptionalHeader;
    public ushort Characteristics;
};

static DateTime GetBuildDateTime(Assembly assembly)
{
    var path = assembly.GetName().CodeBase;
    if (File.Exists(path))
    {
        var buffer = new byte[Math.Max(Marshal.SizeOf(typeof(_IMAGE_FILE_HEADER)), 4)];
        using (var fileStream = new FileStream(path, FileMode.Open, FileAccess.Read))
        {
            fileStream.Position = 0x3C;
            fileStream.Read(buffer, 0, 4);
            fileStream.Position = BitConverter.ToUInt32(buffer, 0); // COFF header offset
            fileStream.Read(buffer, 0, 4); // "PE\0\0"
            fileStream.Read(buffer, 0, buffer.Length);
        }
        var pinnedBuffer = GCHandle.Alloc(buffer, GCHandleType.Pinned);
        try
        {
            var coffHeader = (_IMAGE_FILE_HEADER)Marshal.PtrToStructure(pinnedBuffer.AddrOfPinnedObject(), typeof(_IMAGE_FILE_HEADER));

            return TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1) + new TimeSpan(coffHeader.TimeDateStamp * TimeSpan.TicksPerSecond));
        }
        finally
        {
            pinnedBuffer.Free();
        }
    }
    return new DateTime();
}

#endregion

The old way

Well, how do you generate build numbers? Visual Studio (or the C# compiler) actually provides automatic build and revision numbers if you change the AssemblyVersion attribute to e.g. 1.0.*

What will happen is that is that the build will be equal to the number of days since January 1, 2000 local time, and for revision to be equal to the number of seconds since midnight local time, divided by 2.

see Community Content, Automatic Build and Revision numbers

e.g. AssemblyInfo.cs

[assembly: AssemblyVersion("1.0.*")] // important: use wildcard for build and revision numbers!

SampleCode.cs

var version = Assembly.GetEntryAssembly().GetName().Version;
var buildDateTime = new DateTime(2000, 1, 1).Add(new TimeSpan(
TimeSpan.TicksPerDay * version.Build + // days since 1 January 2000
TimeSpan.TicksPerSecond * 2 * version.Revision)); // seconds since midnight, (multiply by 2 to get original)

It is stretching because align-self default value is stretch. there is two solution for this case : 1. set img align-self : center OR 2. set parent align-items : center

img {

   align-self: center
}

OR

.parent {
  align-items: center
}

In XP, the .mru.dat file is in C:\Documents and Settings\Name\Application Data\Microsoft\Microsoft SQL Server\90\Tools\ShellSEM

However, removing it won't do anything.

To remove the list in XP, cut the sqlstudio bin file from C:\Documents and Settings\Name\Application Data\Microsoft\Microsoft SQL Server\100\Tools\Shell and paste it on your desktop.

Try SQL

If it has worked, then delete the sqlstudio bin file from desktop.

Easy :)

I had this issue too.

It started after I did a little folder tidying in my project. I then tried to compile and got many duplicate class errors. (despite them not being duplicated. I think the linking was just out of wack)

Upon checking these, the errors would all disappear leaving only the "Metadata file ...debug\application.exe could not be found" error.

I solved this by looking in the build output window to find which classes were duplicated.

I would then right click the class name and "go to definition".

there will be two definitions to select from, open them both, the second definition will seem to open the same file again, however the second one will identify as the error source(red underline).

Delete all the code out of the file and save(This will not effect your actual file).
This should now compile correctly.

try this:

var result = from r in myDataTable.AsEnumerable()  
            where r.Field<string>("Name") != "n/a" &&  
                  r.Field<string>("Name") != "" select r;  
DataTable dtResult = result.CopyToDataTable();  

There isn't any in printf - the two are synonyms.

Go to the start menu. Open up cmd (command prompt) and type in the following.

wmic process list brief | find /i "tomcat"

This would tell you if the tomcat is running or not.

// add a method. calls one built-in method, too.
jQuery.validator.addMethod("optdate", function(value, element) {
        return jQuery.validator.methods['date'].call(
            this,value,element
        )||value==("0000/00/00");
    }, "Please enter a valid date."
);

// connect it to a css class
jQuery.validator.addClassRules({
    optdate : { optdate : true }    
});

VS 2010 Express is no longer linked to any VS Express pages (that I found). I did find this link to the ISO which I used and it fixed the errors mentioned here.

http://download.microsoft.com/download/1/E/5/1E5F1C0A-0D5B-426A-A603-1798B951DDAE/VS2010Express1.iso

Note: Also make sure you have x86 everything (Python + Postgresql) or you'll get other errors. I did not try x64 everything.

You can pass this when you call the function

<button onclick="doSomething('param',this)" id="id_button">action</button>

<script>
    function doSomething(param,me){

    var source = me
    console.log(source);
}
</script>

One of the approaches may be like this:

1) Create a CSS file with name "style.css" and define an id selector in it:

#pane{
    -fx-background-image: url("background_image.jpg");
    -fx-background-repeat: stretch;   
    -fx-background-size: 900 506;
    -fx-background-position: center center;
    -fx-effect: dropshadow(three-pass-box, black, 30, 0.5, 0, 0); 
}

2) Set the id of the most top control (or any control) in the scene with value defined in CSS and load this CSS file into the scene:

  public class Test extends Application {

    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage primaryStage) {
        StackPane root = new StackPane();
        root.setId("pane");
        Scene scene = new Scene(root, 300, 250);
        scene.getStylesheets().addAll(this.getClass().getResource("style.css").toExternalForm());
        primaryStage.setScene(scene);
        primaryStage.show();
    }
}

You can also give an id to the control in a FXML file:

<StackPane id="pane" prefHeight="200" prefWidth="320" xmlns:fx="http://javafx.com/fxml" fx:controller="demo.Sample">
    <children>
    </children>
</StackPane>

For more info about JavaFX CSS Styling refer to this guide.

C:\Program Files (x86)\LG Electronics\LG PC Suite\adb>adb install com.lge.filemanager-15052-v3.1.15052.apk
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
2683 KB/s (3159508 bytes in 1.150s)
pkg: /data/local/tmp/com.lge.filemanager-15052-v3.1.15052.apk
Success

C:\Program Files (x86)\LG Electronics\LG PC Suite\adb>

We can use the adb.exe which is there in PC suit, it worked for me. Thanks Chethan

The idea of mapping an function to array of data comes from functional programming. You shouldn't think about array_map as a foreach loop that calls a function on each element of the array (even though that's how it's implemented). It should be thought of as applying the function to each element in the array independently.

In theory such things as function mapping can be done in parallel since the function being applied to the data should ONLY affect the data and NOT the global state. This is because an array_map could choose any order in which to apply the function to the items in (even though in PHP it doesn't).

array_walk on the other hand it the exact opposite approach to handling arrays of data. Instead of handling each item separately, it uses a state (&$userdata) and can edit the item in place (much like a foreach loop). Since each time an item has the $funcname applied to it, it could change the global state of the program and therefor requires a single correct way of processing the items.

Back in PHP land, array_map and array_walk are almost identical except array_walk gives you more control over the iteration of data and is normally used to "change" the data in-place vs returning a new "changed" array.

array_filter is really an application of array_walk (or array_reduce) and it more-or-less just provided for convenience.

There are two problems with your code

1. To find an element by ID you must prefix it with a "#"
2. You are attempting to pass a Number to the find function when a String is required (passing "#" + 5 would fix this as it would convert the 5 to a "5" first)

I am using 0.56RC secureTextEntry={true} Along with password={true} then only its working as mentioned by @NicholasByDesign