You can make virtualenvwrapper use a custom Python binary instead of the one virtualenvwrapper is run with. To do that you need to use VIRTUALENV_PYTHON variable which is utilized by virtualenv:

$ export VIRTUALENV_PYTHON=/usr/bin/python3
$ mkvirtualenv -a myproject myenv
Running virtualenv with interpreter /usr/bin/python3
New python executable in myenv/bin/python3
Also creating executable in myenv/bin/python
(myenv)$ python
Python 3.2.3 (default, Oct 19 2012, 19:53:16) 
[GCC 4.7.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.

Based on you kernel status (upper right beside "Python 3", the one that is a circle). It seems that it is still busy. It might be trapped in an endless loop or maybe you've run/display something that is not closed.

Note: This answer was written for Laravel 3. Thus might or might not works well in more recent version of Laravel.

You can delete all related photos before actually deleting the user.

<?php

class User extends Eloquent
{

    public function photos()
    {
        return $this->has_many('Photo');
    }

    public function delete()
    {
        // delete all related photos 
        $this->photos()->delete();
        // as suggested by Dirk in comment,
        // it's an uglier alternative, but faster
        // Photo::where("user_id", $this->id)->delete()

        // delete the user
        return parent::delete();
    }
}

Hope it helps.

I've done a little project to configure and build X264 and FFMPEG using the Android NDK. The main thing that's missing is a decent JNI interface to make it accessible via Java, but that is the easy part (relatively). When I get round to making the JNI interface good for my own uses, I'll push that in.

The benefit over olvaffe's build system is that it doesn't require Android.mk files to build the libraries, it just uses the regular makefiles and the toolchain. This makes it much less likely to stop working when you pull new change from FFMPEG or X264.

https://github.com/halfninja/android-ffmpeg-x264

If you don't need full debugging support, you can now view JavaScript console logs directly within Chrome for iOS at chrome://inspect.

https://blog.chromium.org/2019/03/debugging-websites-in-chrome-for-ios.html

There is no defined maximum size for HTTP POST requests. If you notice such a limit then it's an arbitrary limitation of your HTTP Server/Client.

You might get a better answer if you tell how big the XML is.

Some other things I found out:

You can't directly pass in an array like:

this.Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "xx",   
"<script>test("+x+","+y+");</script>");

because that calls the ToString() methods of x and y, which returns "System.Int32[]", and obviously Javascript can't use that. I had to pass in the arrays as strings, like "[1,2,3,4,5]", so I wrote a helper method to do the conversion.

Also, there is a difference between this.Page.ClientScript.RegisterStartupScript() and this.Page.ClientScript.RegisterClientScriptBlock() - the former places the script at the bottom of the page, which I need in order to be able to access the controls (like with document.getElementByID). RegisterClientScriptBlock() is executed before the tags are rendered, so I actually get a Javascript error if I use that method.

http://www.wrox.com/WileyCDA/Section/Manipulating-ASP-NET-Pages-and-Server-Controls-with-JavaScript.id-310803.html covers the difference between the two pretty well.

Here's the complete example I came up with:

// code behind
protected void Button1_Click(object sender, EventArgs e)
{
    int[] x = new int[] { 1, 2, 3, 4, 5 };
    int[] y = new int[] { 1, 2, 3, 4, 5 };

    string xStr = getArrayString(x); // converts {1,2,3,4,5} to [1,2,3,4,5]
    string yStr = getArrayString(y);

    string script = String.Format("test({0},{1})", xStr, yStr);
    this.Page.ClientScript.RegisterStartupScript(this.GetType(),
    "testFunction", script, true);
    //this.Page.ClientScript.RegisterClientScriptBlock(this.GetType(),
    //"testFunction", script, true); // different result
}
private string getArrayString(int[] array)
{
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < array.Length; i++)
    {
        sb.Append(array[i] + ",");
    }
    string arrayStr = string.Format("[{0}]", sb.ToString().TrimEnd(','));
    return arrayStr;
}

//aspx page
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Untitled Page</title>
    <script type="text/javascript">
    function test(x, y)
    {
        var text1 = document.getElementById("text1")
        for(var i = 0; i<x.length; i++)
        {
            text1.innerText += x[i]; // prints 12345
        }
        text1.innerText += "\ny: " + y; // prints y: 1,2,3,4,5

    }

    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Button ID="Button1" runat="server" Text="Button"
         onclick="Button1_Click" />
    </div>
    <div id ="text1"> 
    </div>
    </form>
</body>
</html>

This solutions works fine for me.

utils/newid.js:

let lastId = 0;

export default function(prefix='id') {
    lastId++;
    return `${prefix}${lastId}`;
}

And I can use it like this:

import newId from '../utils/newid';

React.createClass({
    componentWillMount() {
        this.id = newId();
    },
    render() {
        return (
            <label htmlFor={this.id}>My label</label>
            <input id={this.id} type="text"/>
        );
    }
});

But it won’t work in isomorphic apps.

Added 17.08.2015. Instead of custom newId function you can use uniqueId from lodash.

Updated 28.01.2016. It’s better to generate ID in componentWillMount.

Use a pattern along these lines:

function getValue(file) {
  return lookupValue(file);
}

getValue('myFile.txt').then(function(res) {
  // do whatever with res here
});

(although this is a bit redundant, I'm sure your actual code is more complicated)

What IDE (if any) are you using? Does this happen when you're working within an IDE, or only on deployment? If it's deployment, it might be because whatever mechanism of deployment you use -- maven-assembly making a single JAR with dependencies is a known culprit -- is collapsing all your JARs into a single directory and the Spring schema and handler files are overwriting each other.

If you don't need it to be human-readable/editable, the easiest solution is to just use pickle.

To write:

with open(the_filename, 'wb') as f:
    pickle.dump(my_list, f)

To read:

with open(the_filename, 'rb') as f:
    my_list = pickle.load(f)

If you do need them to be human-readable, we need more information.

If my_list is guaranteed to be a list of strings with no embedded newlines, just write them one per line:

with open(the_filename, 'w') as f:
    for s in my_list:
        f.write(s + '\n')

with open(the_filename, 'r') as f:
    my_list = [line.rstrip('\n') for line in f]

If they're Unicode strings rather than byte strings, you'll want to encode them. (Or, worse, if they're byte strings, but not necessarily in the same encoding as your system default.)

If they might have newlines, or non-printable characters, etc., you can use escaping or quoting. Python has a variety of different kinds of escaping built into the stdlib.

Let's use unicode-escape here to solve both of the above problems at once:

with open(the_filename, 'w') as f:
    for s in my_list:
        f.write((s + u'\n').encode('unicode-escape'))

with open(the_filename, 'r') as f:
    my_list = [line.decode('unicode-escape').rstrip(u'\n') for line in f]

You can also use the 3.x-style solution in 2.x, with either the codecs module or the io module:*

import io

with io.open(the_filename, 'w', encoding='unicode-escape') as f:
    f.writelines(line + u'\n' for line in my_list)

with open(the_filename, 'r') as f:
    my_list = [line.rstrip(u'\n') for line in f]

_{* TOOWTDI, so which is the one obvious way? It depends… For the short version: if you need to work with Python versions before 2.6, use codecs; if not, use io.}

Caveat: you can't prevent users from pirating, but only make it easier for honest users to do the right thing.

Assuming you don't want to do a special build for each user, then:

• Generate yourself a secret key for the product
• Take the user's name
• Concatentate the users name and the secret key and hash with (for example) SHA1
• Unpack the SHA1 hash as an alphanumeric string. This is the individual user's "Product Key"
• Within the program, do the same hash, and compare with the product key. If equal, OK.

But, I repeat: this won't prevent piracy

I have recently read that this approach is not cryptographically very sound. But this solution is already weak (as the software itself has to include the secret key somewhere), so I don't think this discovery invalidates the solution as far as it goes.

Just thought I really ought to mention this, though; if you're planning to derive something else from this, beware.

For PHP7 on CentOS or EC2 Linux AMI:

sudo yum install php70-gd

This will convert it to an int:

char foo = '2';
int bar = foo - '0';

This works because each character is internally represented by a number. The characters '0' to '9' are represented by consecutive numbers, so finding the difference between the characters '0' and '2' results in the number 2.

Jenkins Server Automation:

Step 1:

Set up a repository to store the Jenkins home (jobs, configurations, plugins, etc.) in a GitLab local or on GitHub private repository and keep it updated regularly by pushing any new changes to Jenkins jobs, plugins, etc.

Step 2:

Configure a Puppet host-group/role for Jenkins that can be used to spin up new Jenkins servers. Do all the basic configuration in a Puppet recipe and make sure it installs the latest version of Jenkins and sets up a separate directory/mount for JENKINS_HOME.

Step 3:

Spin up a new machine using the Jenkins-puppet configuration above. When everything is installed, grab/clone the Jenkins configuration from the Git repository to the Jenkins home direcotry and restart Jenkins.

Step 4:

Go to the Jenkins URL, Manage Jenkins ? Manage Plugins and update all the plugins that require an update.

Done

You can use Docker Swarm or Kubernetes to auto-scale the slave nodes.

Use Below code:

private void getCallDeatils() {
    StringBuffer stringBuffer = new StringBuffer();
    Cursor managedCursor = getActivity().managedQuery(CallLog.Calls.CONTENT_URI, null, null, null, null);
    int number = managedCursor.getColumnIndex(CallLog.Calls.NUMBER);
    int type = managedCursor.getColumnIndex(CallLog.Calls.TYPE);
    int date = managedCursor.getColumnIndex(CallLog.Calls.DATE);

    int duration = managedCursor.getColumnIndex(CallLog.Calls.DURATION);
    stringBuffer.append("Call Deatils");
    while (managedCursor.moveToNext()) {
        String phNumber = managedCursor.getString(number);
        String callType = managedCursor.getString(type);
        String callDate = managedCursor.getString(date);
        Date callDayTime = new Date(Long.valueOf(callDate));
        DateFormat df = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
        String reportDate = df.format(callDayTime);
        String callDuration = managedCursor.getString(duration);
        String dir = null;
        int dircode = Integer.parseInt(callType);
        switch (dircode) {
            case CallLog.Calls.OUTGOING_TYPE:
                dir = "OUTGOING";
                break;

            case CallLog.Calls.INCOMING_TYPE:
                dir = "INCOMING";

                break;

            case CallLog.Calls.MISSED_TYPE:
                dir = "MISSED";
                break;

        }
        stringBuffer.append("\nPhone Number:--- " + phNumber + " \nCall Type:--- " + dir + " \nCall Date:--- " +callDate + " \nCall duration in sec :--- " + callDuration);
        stringBuffer.append("\n----------------------------------");

        logs.add(new LogClass(phNumber,dir,reportDate,callDuration));




    }

The SET command is TSQL specific - here's the PLSQL equivalent to what you posted:

v_date1 DATE := TO_DATE('03-AUG-2010', 'DD-MON-YYYY');

SELECT u.visualid
  FROM USAGE u 
 WHERE u.usetime > v_date1;

There's also no need for prefixing variables with "@"; I tend to prefix variables with "v_" to distinguish between variables & columns/etc.

See this thread about the Oracle equivalent of NOLOCK...

In Javascript you can do that by using the typeof function

function foo(bar){
  alert(typeof(bar));
}

Besides installing the required packages, I also needed to manually add PostgreSQL bin directory to PATH.
$vi ~/.bash_profile
Add PATH=/usr/pgsql-9.2/bin:$PATH before export PATH.
$source ~/.bash_profile
$pip install psycopg2

#!/bin/bash
# Target directory
TARGET=/target/directory/here

for i in $(git diff --name-only)
    do
        # First create the target directory, if it doesn't exist.
        mkdir -p "$TARGET/$(dirname $i)"
        # Then copy over the file.
        cp -rf "$i" "$TARGET/$i"
    done

https://stackoverflow.com/users/79061/sebastian-paaske-t%c3%b8rholm

As other have said, this error occurs because the emulator is still in the process of launching. An attempt to access the package manager, for the device, at this time causes an error.

It's just a simple timing issue. Here are the steps to avoid this error:

1. Wait until the emulator 'lock screen' is showing.
2. Run the 'app' again (^R in most IDE's).
3. Choose the running device (Should be the same emulator).

App should install without error.

Actually, if you want to use cmd commands,you have two ways. First, install it at gloabl environment. The other way is npm link. so, try the first way: npm install -g babel-cli.

Here very simple method

let data = string.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)

BigDecimal does not seem to respect Locale settings.

Locale.getDefault(); //returns sl_SI

Slovenian locale should have a decimal comma. Guess I had strange misconceptions regarding numbers.

a = new BigDecimal("1,2") //throws exception
a = new BigDecimal("1.2") //is ok

a.toPlainString() // returns "1.2" always

I have edited a part of my message that made no sense since it proved to be due the human error (forgot to commit data and was looking at the wrong thing).

Same as BigDecimal can be said for any Java .toString() functions. I guess that is good in some ways. Serialization for example or debugging. There is an unique string representation.

Also as others mentioned using formatters works OK. Just use formatters, same for the JSF frontend, formatters do the job properly and are aware of the locale.

http://phpjs.org/functions/isset:454

phpjs project is a trusted source. Lots of js equivalent php functions available there. I have been using since a long time and found no issues so far.

Email tech support at your client's hosting provider and ask for the information.

You shouldn't use strcpy() to copy a std::string, only use it for C-Style strings.

If you want to copy a to b then just use the = operator.

string a = "text";
string b = "image";
b = a;

Step 1: open your mysql workbench application select table. choose image cell right click select "Open value in Editor"

Step 2: click on the load button and choose image file

Step 3:then click apply button

Step 4: Then apply the query to save the image .Don't forgot image data type is "BLOB". Step 5: You can can check uploaded image

A combination of both float: left; white-space: nowrap; worked for me.

Each of them independently didn't accomplish the desired result.

(void*) 0 is NULL, and '\0' represents the end of a string.

Just replace <div class="container"> with <div class="container-fluid">, which is the container with no margins on both sides.

I think this is the best solution because it avoids some useless overriding and makes use of built-in classes, it's clean.

Ok, Denizens. So I have accepted the command line length limits as gospel for quite some time. So, what to do with one's assumptions? Naturally- check them.

I have a Fedora 22 machine at my disposal (meaning: Linux with bash4). I have created a directory with 500,000 inodes (files) in it each of 18 characters long. The command line length is 9,500,000 characters. Created thus:

seq 1 500000 | while read digit; do
    touch $(printf "abigfilename%06d\n" $digit);
done

And we note:

$ getconf ARG_MAX
2097152

Note however I can do this:

$ echo * > /dev/null

But this fails:

$ /bin/echo * > /dev/null
bash: /bin/echo: Argument list too long

I can run a for loop:

$ for f in *; do :; done

which is another shell builtin.

Careful reading of the documentation for ARG_MAX states, Maximum length of argument to the exec functions. This means: Without calling exec, there is no ARG_MAX limitation. So it would explain why shell builtins are not restricted by ARG_MAX.

And indeed, I can ls my directory if my argument list is 109948 files long, or about 2,089,000 characters (give or take). Once I add one more 18-character filename file, though, then I get an Argument list too long error. So ARG_MAX is working as advertised: the exec is failing with more than ARG_MAX characters on the argument list- including, it should be noted, the environment data.

import java.io.FileInputStream; import java.io.ByteArrayOutputStream;

public class FileHashStream { // write a new method that will provide a new Byte array, and where this generally reads from an input stream

public static byte[] read(InputStream is) throws Exception
{
    String path = /* type in the absolute path for the 'commons-codec-1.10-bin.zip' */;

    // must need a Byte buffer

    byte[] buf = new byte[1024 * 16]

    // we will use 16 kilobytes

    int len = 0;

    // we need a new input stream

    FileInputStream is = new FileInputStream(path);

    // use the buffer to update our "MessageDigest" instance

    while(true)
    {
        len = is.read(buf);
        if(len < 0) break;
        md.update(buf, 0, len);
    }

    // close the input stream

    is.close();

    // call the "digest" method for obtaining the final hash-result

    byte[] ret = md.digest();

    System.out.println("Length of Hash: " + ret.length);

    for(byte b : ret)
    {
        System.out.println(b + ", ");
    }

    String compare = "49276d206b696c6c696e6720796f757220627261696e206c696b65206120706f69736f6e6f7573206d757368726f6f6d";

    String verification = Hex.encodeHexString(ret);

    System.out.println();

    System.out.println("===")

    System.out.println(verification);

    System.out.println("Equals? " + verification.equals(compare));

}

}

Just a very quick addition as I have been testing a few options and missed this along the way. Make sure your page has:

<meta name="viewport" content="initial-scale=1.0">

Your code works fine for me. It replaced the text in the file as expected and didn't append.

If you wanted to append, you set the second parameter in

new FileWriter(fnew,false);

to true;

(disclaimer - I work for Atalasoft)

If you present your PDF documents with the Atalasoft web image viewer, you can prevent the PDF from being downloaded. You could also control printing from javascript on the client side.

Swift 4/5

Another way to achieve this is with the filter function

var elements = [1,2,3,4,5]
if let object = elements.filter({ $0 == 5 }).first {
    print("found")
} else {
    print("not found")
}

Presumably, if one wants to use an OnTouchListener rather than an OnClickListener, then the extra functionality of the OnTouchListener is needed. This is a supplemental answer to show more detail of how an OnTouchListener can be used.

Define the listener

Put this somewhere in your activity or fragment.

private View.OnTouchListener handleTouch = new View.OnTouchListener() {

    @Override
    public boolean onTouch(View v, MotionEvent event) {

        int x = (int) event.getX();
        int y = (int) event.getY();

        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                Log.i("TAG", "touched down");
                break;
            case MotionEvent.ACTION_MOVE:
                Log.i("TAG", "moving: (" + x + ", " + y + ")");
                break;
            case MotionEvent.ACTION_UP:
                Log.i("TAG", "touched up");
                break;
        }

        return true;
    }
};

Set the listener

Set the listener in onCreate (for an Activity) or onCreateView (for a Fragment).

myView.setOnTouchListener(handleTouch);

Notes

• getX and getY give you the coordinates relative to the view (that is, the top left corner of the view). They will be negative when moving above or to the left of your view. Use getRawX and getRawY if you want the absolute screen coordinates.
• You can use the x and y values to determine things like swipe direction.

Update October 2018

If you are still uncertain about Front-end dev, you can take a quick look into an excellent resource here.

https://github.com/kamranahmedse/developer-roadmap

Update June 2018

Learning modern JavaScript is tough if you haven’t been there since the beginning. If you are the newcomer, remember to check this excellent written to have a better overview.

https://medium.com/the-node-js-collection/modern-javascript-explained-for-dinosaurs-f695e9747b70

Update July 2017

Recently I found a comprehensive guide from Grab team about how to approach front-end development in 2017. You can check it out as below.

https://github.com/grab/front-end-guide

I've been also searching for this quite some time since there are a lot of tools out there and each of them benefits us in a different aspect. The community is divided across tools like Browserify, Webpack, jspm, Grunt and Gulp. You might also hear about Yeoman or Slush. That’s not a problem, it’s just confusing for everyone trying to understand a clear path forward.

Anyway, I would like to contribute something.

Table Of Content

• Table Of Content
• 1. Package Manager
  • NPM
  • Bower
  • Difference between Bower and NPM
  • Yarn
  • jspm
• 2. Module Loader/Bundling
  • RequireJS
  • Browserify
  • Webpack
  • SystemJS
• 3. Task runner
  • Grunt
  • Gulp
• 4. Scaffolding tools
  • Slush and Yeoman

1. Package Manager

Package managers simplify installing and updating project dependencies, which are libraries such as: jQuery, Bootstrap, etc - everything that is used on your site and isn't written by you.

Browsing all the library websites, downloading and unpacking the archives, copying files into the projects — all of this is replaced with a few commands in the terminal.

NPM

It stands for: Node JS package manager helps you to manage all the libraries your software relies on. You would define your needs in a file called package.json and run npm install in the command line... then BANG, your packages are downloaded and ready to use. It could be used both for front-end and back-end libraries.

Bower

For front-end package management, the concept is the same with NPM. All your libraries are stored in a file named bower.json and then run bower install in the command line.

Bower is recommended their user to migrate over to npm or yarn. Please be careful

Difference between Bower and NPM

The biggest difference between Bower and NPM is that NPM does nested dependency tree while Bower requires a flat dependency tree as below.

Quoting from What is the difference between Bower and npm?

NPM

project root
[node_modules] // default directory for dependencies
 -> dependency A
 -> dependency B
    [node_modules]
    -> dependency A

 -> dependency C
    [node_modules]
    -> dependency B
      [node_modules]
       -> dependency A
    -> dependency D

Bower

project root
[bower_components] // default directory for dependencies
 -> dependency A
 -> dependency B // needs A
 -> dependency C // needs B and D
 -> dependency D

There are some updates on npm 3 Duplication and Deduplication, please open the doc for more detail.

Yarn

A new package manager for JavaScript published by Facebook recently with some more advantages compared to NPM. And with Yarn, you still can use both NPMand Bower registry to fetch the package. If you've installed a package before, yarn creates a cached copy which facilitates offline package installs.

jspm

JSPM is a package manager for the SystemJS universal module loader, built on top of the dynamic ES6 module loader. It is not an entirely new package manager with its own set of rules, rather it works on top of existing package sources. Out of the box, it works with GitHub and npm. As most of the Bower based packages are based on GitHub, we can install those packages using jspm as well. It has a registry that lists most of the commonly used front-end packages for easier installation.

See the different between Bower and jspm: Package Manager: Bower vs jspm

2. Module Loader/Bundling

Most projects of any scale will have their code split between several files. You can just include each file with an individual <script> tag, however, <script> establishes a new HTTP connection, and for small files – which is a goal of modularity – the time to set up the connection can take significantly longer than transferring the data. While the scripts are downloading, no content can be changed on the page.

• The problem of download time can largely be solved by concatenating a group of simple modules into a single file and minifying it.

E.g

<head>
    <title>Wagon</title>
    <script src=“build/wagon-bundle.js”></script>
</head>

• The performance comes at the expense of flexibility though. If your modules have inter-dependency, this lack of flexibility may be a showstopper.

E.g

<head>
    <title>Skateboard</title>
    <script src=“connectors/axle.js”></script>
    <script src=“frames/board.js”></script>
    <!-- skateboard-wheel and ball-bearing both depend on abstract-rolling-thing -->
    <script src=“rolling-things/abstract-rolling-thing.js”></script>
    <script src=“rolling-things/wheels/skateboard-wheel.js”></script>
    <!-- but if skateboard-wheel also depends on ball-bearing -->
    <!-- then having this script tag here could cause a problem -->
    <script src=“rolling-things/ball-bearing.js”></script>
    <!-- connect wheels to axle and axle to frame -->
    <script src=“vehicles/skateboard/our-sk8bd-init.js”></script>
</head>

Computers can do that better than you can, and that is why you should use a tool to automatically bundle everything into a single file.

Then we heard about RequireJS, Browserify, Webpack and SystemJS

RequireJS

It is a JavaScript file and module loader. It is optimized for in-browser use, but it can be used in other JavaScript environments, like Node.

E.g: myModule.js

// package/lib is a dependency we require
define(["package/lib"], function (lib) {
  // behavior for our module
  function foo() {
    lib.log("hello world!");
  }

  // export (expose) foo to other modules as foobar
  return {
    foobar: foo,
  };
});

In main.js, we can import myModule.js as a dependency and use it.

require(["package/myModule"], function(myModule) {
    myModule.foobar();
});

And then in our HTML, we can refer to use with RequireJS.

<script src=“app/require.js” data-main=“main.js” ></script>

Read more about CommonJS and AMD to get understanding easily. Relation between CommonJS, AMD and RequireJS?

Browserify

Set out to allow the use of CommonJS formatted modules in the browser. Consequently, Browserify isn’t as much a module loader as a module bundler: Browserify is entirely a build-time tool, producing a bundle of code that can then be loaded client-side.

Start with a build machine that has node & npm installed, and get the package:

npm install -g –save-dev browserify

Write your modules in CommonJS format

//entry-point.js
var foo = require("../foo.js");
console.log(foo(4));

And when happy, issue the command to bundle:

browserify entry-point.js -o bundle-name.js

Browserify recursively finds all dependencies of entry-point and assembles them into a single file:

<script src="”bundle-name.js”"></script>

Webpack

It bundles all of your static assets, including JavaScript, images, CSS, and more, into a single file. It also enables you to process the files through different types of loaders. You could write your JavaScript with CommonJS or AMD modules syntax. It attacks the build problem in a fundamentally more integrated and opinionated manner. In Browserify you use Gulp/Grunt and a long list of transforms and plugins to get the job done. Webpack offers enough power out of the box that you typically don’t need Grunt or Gulp at all.

Basic usage is beyond simple. Install Webpack like Browserify:

npm install -g –save-dev webpack

And pass the command an entry point and an output file:

webpack ./entry-point.js bundle-name.js

SystemJS

It is a module loader that can import modules at run time in any of the popular formats used today (CommonJS, UMD, AMD, ES6). It is built on top of the ES6 module loader polyfill and is smart enough to detect the format being used and handle it appropriately. SystemJS can also transpile ES6 code (with Babel or Traceur) or other languages such as TypeScript and CoffeeScript using plugins.

Want to know what is the node module and why it is not well adapted to in-browser.

More useful article:

• https://medium.com/@housecor/browserify-vs-webpack-b3d7ca08a0a9#.c1q7ao3h4
• http://jamesknelson.com/which-build-system-should-i-use-for-my-javascript-app/
• https://appendto.com/2016/06/the-short-history-of-javascript-module-loaders/

Why jspm and SystemJS?

One of the main goals of ES6 modularity is to make it really simple to install and use any Javascript library from anywhere on the Internet (Github, npm, etc.). Only two things are needed:

• A single command to install the library
• One single line of code to import the library and use it

So with jspm, you can do it.

1. Install the library with a command: jspm install jquery
2. Import the library with a single line of code, no need to external reference inside your HTML file.

display.js

var $ = require('jquery');

$('body').append("I've imported jQuery!");

3. Then you configure these things within System.config({ ... }) before importing your module. Normally when run jspm init, there will be a file named config.js for this purpose.

4. To make these scripts run, we need to load system.js and config.js on the HTML page. After that, we will load the display.js file using the SystemJS module loader.

index.html

<script src="jspm_packages/system.js"></script>
<script src="config.js"></script>
<script>
  System.import("scripts/display.js");
</script>

Noted: You can also use npm with Webpack as Angular 2 has applied it. Since jspm was developed to integrate with SystemJS and it works on top of the existing npm source, so your answer is up to you.

3. Task runner

Task runners and build tools are primarily command-line tools. Why we need to use them: In one word: automation. The less work you have to do when performing repetitive tasks like minification, compilation, unit testing, linting which previously cost us a lot of times to do with command line or even manually.

Grunt

You can create automation for your development environment to pre-process codes or create build scripts with a config file and it seems very difficult to handle a complex task. Popular in the last few years.

Every task in Grunt is an array of different plugin configurations, that simply get executed one after another, in a strictly independent, and sequential fashion.

grunt.initConfig({
    clean: {
    src: ['build/app.js', 'build/vendor.js']
    },

    copy: {
    files: [{
        src: 'build/app.js',
        dest: 'build/dist/app.js'
    }]
    }

    concat: {
    'build/app.js': ['build/vendors.js', 'build/app.js']
    }

    // ... other task configurations ...

});

grunt.registerTask('build', ['clean', 'bower', 'browserify', 'concat', 'copy']);

Gulp

Automation just like Grunt but instead of configurations, you can write JavaScript with streams like it's a node application. Prefer these days.

This is a Gulp sample task declaration.

//import the necessary gulp plugins
var gulp = require("gulp");
var sass = require("gulp-sass");
var minifyCss = require("gulp-minify-css");
var rename = require("gulp-rename");

//declare the task
gulp.task("sass", function (done) {
  gulp
    .src("./scss/ionic.app.scss")
    .pipe(sass())
    .pipe(gulp.dest("./www/css/"))
    .pipe(
      minifyCss({
        keepSpecialComments: 0,
      })
    )
    .pipe(rename({ extname: ".min.css" }))
    .pipe(gulp.dest("./www/css/"))
    .on("end", done);
});

See more: https://preslav.me/2015/01/06/gulp-vs-grunt-why-one-why-the-other/

4. Scaffolding tools

Slush and Yeoman

You can create starter projects with them. For example, you are planning to build a prototype with HTML and SCSS, then instead of manually create some folder like scss, css, img, fonts. You can just install yeoman and run a simple script. Then everything here for you.

Find more here.

npm install -g yo
npm install --global generator-h5bp
yo h5bp

See more: https://www.quora.com/What-are-the-differences-between-NPM-Bower-Grunt-Gulp-Webpack-Browserify-Slush-Yeoman-and-Express

My answer is not matched with the content of the question but when I'm searching for this knowledge on Google, I always see the question on top so that I decided to answer it in summary. I hope you guys found it helpful.

If you like this post, you can read more on my blog at trungk18.com. Thanks for visiting :)

Having 2 scripts called test.bat and ping.bat in same folder:

Script test.bat contains one line:

ping google.com

Script ping.bat contains below lines:

@echo off
echo Hello!
pause

Executing "test.bat" the result on CMD will be:

Hello!
Press any key to continue . . .

Why? Because "test.bat" is calling the "ping.bat" ("ping google.com" is interpreted as calling the "ping.bat" script). Same is happening if script "ping.bat" contains "ping google.com". The script will execute himself in a loop.

Easy ways to avoid this:

1. Do not name your script "ping.bat".
2. You can name the script as "ping.bat" but inside the script use "ping.exe google.com" instead of "ping google.com".

The following code is perfectly fine and the right way (most exact, concise, and clear) to check if an object is null:

object obj = null;

//...

if (obj == null)
{
    // Do something
}

String.IsNullOrEmpty is a method existing for convenience so that you don't have to write the comparison code yourself:

private bool IsNullOrEmpty(string input)
{
    return input == null || input == string.Empty;
}

Additionally, there is a String.IsNullOrWhiteSpace method checking for null and whitespace characters, such as spaces, tabs etc.

My application is using Mura CMS and I faced this issue. However the solution was the password mismatch between my mysql local server and the password in the config files. As soon as I synched them it worked.

Here an alternative using SUBSTRING

SELECT
            SUBSTRING([Field], LEN([Field]) - 2, 3) [Right3],
            SUBSTRING([Field], 0, LEN([Field]) - 2) [TheRest]
    FROM 
            [Fields]

with fiddle

The latest JDBC MSSQL connectivity driver can be found on JDBC 4.0

The class file should be in the classpath. If you are using eclipse you can easily do the same by doing the following -->

Right Click Project Name --> Properties --> Java Build Path --> Libraries --> Add External Jars

Also as already been pointed out by @Cheeso the correct way to access is jdbc:sqlserver://server:port;DatabaseName=dbname

Meanwhile please find a sample class for accessing MSSQL DB (2008 in my case).

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class ConnectMSSQLServer
{
   public void dbConnect(String db_connect_string,
            String db_userid,
            String db_password)
   {
      try {
         Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
         Connection conn = DriverManager.getConnection(db_connect_string,
                  db_userid, db_password);
         System.out.println("connected");
         Statement statement = conn.createStatement();
         String queryString = "select * from SampleTable";
         ResultSet rs = statement.executeQuery(queryString);
         while (rs.next()) {
            System.out.println(rs.getString(1));
         }
         conn.close();
      } catch (Exception e) {
         e.printStackTrace();
      }
   }

   public static void main(String[] args)
   {
      ConnectMSSQLServer connServer = new ConnectMSSQLServer();
      connServer.dbConnect("jdbc:sqlserver://xx.xx.xx.xxxx:1433;databaseName=MyDBName", "DB_USER","DB_PASSWORD");
   }
}

Hope this helps.

Find *.pem file and place it to the anchors sub-directory or just simply link the *.pem file to there.

yum install -y ca-certificates
update-ca-trust force-enable
sudo ln -s /etc/ssl/your-cert.pem /etc/pki/ca-trust/source/anchors/your-cert.pem
update-ca-trust

When call add_subparsers method save the first positional argument to dest= and check value after argparse has been initialized, like this:

subparsers = parser.add_subparsers(dest='command')

And just check this this variable:

if not args.command:
    parser.print_help()
    parser.exit(1)  # If exit() - exit code will be zero (no error)

Full example:

#!/usr/bin/env python

""" doc """

import argparse
import sys

parser = argparse.ArgumentParser(description=__doc__)
subparsers = parser.add_subparsers(dest='command',
                                   help='List of commands')

list_parser = subparsers.add_parser('list',
                                    help='List contents')
list_parser.add_argument('dir', action='store',
                         help='Directory to list')

create_parser = subparsers.add_parser('create',
                                      help='Create a directory')
create_parser.add_argument('dirname', action='store',
                           help='New directory to create')
create_parser.add_argument('--read-only', default=False, action='store_true',
                           help='Set permissions to prevent writing to the directory')

args = parser.parse_args()

if not args.command:
    parser.print_help()
    parser.exit(1)

print(vars(args))  # For debug

Specifically...

How and where is app.run() used? After module definition or after app.config(), after app.controller()?

Where:

In your package.js E.g. /packages/dashboard/public/controllers/dashboard.js

How:

Make it look like this

var app = angular.module('mean.dashboard', ['ui.bootstrap']);

app.controller('DashboardController', ['$scope', 'Global', 'Dashboard',
    function($scope, Global, Dashboard) {
        $scope.global = Global;
        $scope.package = {
            name: 'dashboard'
        };
        // ...
    }
]);

app.run(function(editableOptions) {
    editableOptions.theme = 'bs3'; // bootstrap3 theme. Can be also 'bs2', 'default'
});

There are a number of different solutions for finding running median from streamed data, I will briefly talk about them at the very end of the answer.

The question is about the details of the a specific solution (max heap/min heap solution), and how heap based solution works is explained below:

For the first two elements add smaller one to the maxHeap on the left, and bigger one to the minHeap on the right. Then process stream data one by one,

Step 1: Add next item to one of the heaps

   if next item is smaller than maxHeap root add it to maxHeap,
   else add it to minHeap

Step 2: Balance the heaps (after this step heaps will be either balanced or
   one of them will contain 1 more item)

   if number of elements in one of the heaps is greater than the other by
   more than 1, remove the root element from the one containing more elements and
   add to the other one

Then at any given time you can calculate median like this:

   If the heaps contain equal amount of elements;
     median = (root of maxHeap + root of minHeap)/2
   Else
     median = root of the heap with more elements

Now I will talk about the problem in general as promised in the beginning of the answer. Finding running median from a stream of data is a tough problem, and finding an exact solution with memory constraints efficiently is probably impossible for the general case. On the other hand, if the data has some characteristics we can exploit, we can develop efficient specialized solutions. For example, if we know that the data is an integral type, then we can use counting sort, which can give you a constant memory constant time algorithm. Heap based solution is a more general solution because it can be used for other data types (doubles) as well. And finally, if the exact median is not required and an approximation is enough, you can just try to estimate a probability density function for the data and estimate median using that.

As @Awe had said above, this is the solution, that is confirmed to work in Chrome!!

Just make sure this is INSIDE the head tags:

<head>
<style media="print">
    @page 
    {
        size: auto;   /* auto is the initial value */
        margin: 0mm;  /* this affects the margin in the printer settings */
    }

    body 
    {
        background-color:#FFFFFF; 
        border: solid 1px black ;
        margin: 0px;  /* this affects the margin on the content before sending to printer */
   }
</style>
</head>

getcwd();

or

dirname(__FILE__);

or (PHP5)

basename(__DIR__) 

http://php.net/manual/en/function.getcwd.php

http://php.net/manual/en/function.dirname.php

You can use basename() to get the trailing part of the path :)

In your case, I'd say you are most likely looking to use getcwd(), dirname(__FILE__) is more useful when you have a file that needs to include another library and is included in another library.

Eg:

main.php
libs/common.php
libs/images/editor.php

In your common.php you need to use functions in editor.php, so you use

common.php:

require_once dirname(__FILE__) . '/images/editor.php';

main.php:

require_once libs/common.php

That way when common.php is require'd in main.php, the call of require_once in common.php will correctly includes editor.php in images/editor.php instead of trying to look in current directory where main.php is run.

Use column-width property of css like below

<ul style="column-width:135px">

To update one column here are some syntax options:

Option 1

var ls=new int[]{2,3,4};
using (var db=new SomeDatabaseContext())
{
    var some= db.SomeTable.Where(x=>ls.Contains(x.friendid)).ToList();
    some.ForEach(a=>a.status=true);
    db.SubmitChanges();
}

Option 2

using (var db=new SomeDatabaseContext())
{
     db.SomeTable
       .Where(x=>ls.Contains(x.friendid))
       .ToList()
       .ForEach(a=>a.status=true);

     db.SubmitChanges();
}

Option 3

using (var db=new SomeDatabaseContext())
{
    foreach (var some in db.SomeTable.Where(x=>ls.Contains(x.friendid)).ToList())
    {
        some.status=true;
    }
    db.SubmitChanges();
}

Update

As requested in the comment it might make sense to show how to update multiple columns. So let's say for the purpose of this exercise that we want not just to update the status at ones. We want to update name and status where the friendid is matching. Here are some syntax options for that:

Option 1

var ls=new int[]{2,3,4};
var name="Foo";
using (var db=new SomeDatabaseContext())
{
    var some= db.SomeTable.Where(x=>ls.Contains(x.friendid)).ToList();
    some.ForEach(a=>
                    {
                        a.status=true;
                        a.name=name;
                    }
                );
    db.SubmitChanges();
}

Option 2

using (var db=new SomeDatabaseContext())
{
    db.SomeTable
        .Where(x=>ls.Contains(x.friendid))
        .ToList()
        .ForEach(a=>
                    {
                        a.status=true;
                        a.name=name;
                    }
                );
    db.SubmitChanges();
}

Option 3

using (var db=new SomeDatabaseContext())
{
    foreach (var some in db.SomeTable.Where(x=>ls.Contains(x.friendid)).ToList())
    {
        some.status=true;
        some.name=name;
    }
    db.SubmitChanges();
}

Update 2

In the answer I was using LINQ to SQL and in that case to commit to the database the usage is:

db.SubmitChanges();

But for Entity Framework to commit the changes it is:

db.SaveChanges()

Outer classes cannot be static, but nested/inner classes can be. That basically helps you to use the nested/inner class without creating an instance of the outer class.

open bash profile in textEdit

open -e .bash_profile

Edit file or paste in front of PATH export PATH=/usr/bin:/usr/sbin:/bin:/sbin:/usr/local/bin:/usr/local/sbin:~/bin

save & close the file

*To open .bash_profile directly open textEdit > file > recent

My solution using standard <ul> and <i> inside <li>

  <ul>
    <li><i class="fab fa-cc-paypal"></i> <div>Paypal</div></li>
    <li><i class="fab fa-cc-apple-pay"></i> <div>Apple Pay</div></li>
    <li><i class="fab fa-cc-stripe"></i> <div>Stripe</div></li>
    <li><i class="fab fa-cc-visa"></i> <div>VISA</div></li>
  </ul>

DEMO HERE

 private
   { Private declarations }
   {declare a variable like this}
   NewLine : string; // ok
  // in next event handler assign a value to that variable (NewLine)
  // like the code down
procedure TMainForm.FormCreate(Sender: TObject);
begin`enter code here`
  NewLine := #10;
 {Next Code To show NewLine In action}
  //ShowMessage('Hello to programming with Delphi' + NewLine + 'Print New Lin now !!!!');
end;

In psql that would be

\dx

See the manual for details: http://www.postgresql.org/docs/current/static/app-psql.html

Doing it in plain SQL it would be a select on pg_extension:

SELECT * 
FROM pg_extension

http://www.postgresql.org/docs/current/static/catalog-pg-extension.html

The static keyword means that something (a field, method or nested class) is related to the type rather than any particular instance of the type. So for example, one calls Math.sin(...) without any instance of the Math class, and indeed you can't create an instance of the Math class.

For more information, see the relevant bit of Oracle's Java Tutorial.

Sidenote

Java unfortunately allows you to access static members as if they were instance members, e.g.

// Bad code!
Thread.currentThread().sleep(5000);
someOtherThread.sleep(5000);

That makes it look as if sleep is an instance method, but it's actually a static method - it always makes the current thread sleep. It's better practice to make this clear in the calling code:

// Clearer
Thread.sleep(5000);

1. Open SQL Server Management Studio
2. Go to Tools > Options > Query Results > SQL Server > Results To Text
3. On the far right, there is a drop down box called Output Format
4. Choose Comma Delimited and click OK

Here's a full screen version of that image, below

This will show your query results as comma-delimited text.

To save the results of a query to a file: Ctrl + Shift + F

I fixed this issue by changing the web app to use a different "Application Pool".

ListView was intended for simple use cases like the same static view for all row items.
Since you have to create ViewHolders and make significant use of getItemViewType(), and dynamically show different row item layout xml's, you should try doing that using the RecyclerView, which is available in Android API 22. It offers better support and structure for multiple view types.

Check out this tutorial on how to use the RecyclerView to do what you are looking for.

Included page:

<!-- opening and closing tags of included page -->
<ui:composition ...>
</ui:composition>

Including page:

<!--the inclusion line in the including page with the content-->
<ui:include src="yourFile.xhtml"/>

• You start your included xhtml file with ui:composition as shown above.
• You include that file with ui:include in the including xhtml file as also shown above.

Consider this snippet of code. Modify as you see fit, or to fit your requirements. You'll need to have Imports statements for System.IO and System.Data.OleDb.

Dim fi As New FileInfo("c:\foo.csv")
Dim connectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties=Text;Data Source=" & fi.DirectoryName

Dim conn As New OleDbConnection(connectionString)
conn.Open()

'the SELECT statement is important here, 
'and requires some formatting to pull dates and deal with headers with spaces.
Dim cmdSelect As New OleDbCommand("SELECT Foo, Bar, FORMAT(""SomeDate"",'YYYY/MM/DD') AS SomeDate, ""SOME MULTI WORD COL"", FROM " & fi.Name, conn)

Dim adapter1 As New OleDbDataAdapter
adapter1.SelectCommand = cmdSelect

Dim ds As New DataSet
adapter1.Fill(ds, "DATA")

myDataGridView.DataSource = ds.Tables(0).DefaultView 
myDataGridView.DataBind
conn.Close()

Just throw everything you read into a MemoryStream and get the byte array in the end. As noted, you should be reading from the underlying stream to get the raw bytes.

var bytes = default(byte[]);
using (var memstream = new MemoryStream())
{
    var buffer = new byte[512];
    var bytesRead = default(int);
    while ((bytesRead = reader.BaseStream.Read(buffer, 0, buffer.Length)) > 0)
        memstream.Write(buffer, 0, bytesRead);
    bytes = memstream.ToArray();
}

Or if you don't want to manage the buffers:

var bytes = default(byte[]);
using (var memstream = new MemoryStream())
{
    reader.BaseStream.CopyTo(memstream);
    bytes = memstream.ToArray();
}

Below is example to call synchronously but you can easily change to async by using await-sync:

var pairs = new List<KeyValuePair<string, string>>
            {
                new KeyValuePair<string, string>("login", "abc")
            };

var content = new FormUrlEncodedContent(pairs);

var client = new HttpClient {BaseAddress = new Uri("http://localhost:6740")};

    // call sync
var response = client.PostAsync("/api/membership/exist", content).Result; 
if (response.IsSuccessStatusCode)
{
}

$("#co").click(function(){
   $(this).css({"backgroundColor" : "blue"});
});

There's some sort of security restriction in place in Chrome for using geolocation from a file:/// URI, though unfortunately it doesn't seem to record any errors to indicate that. It will work from a local web server. If you have python installed try opening a command prompt in the directory where your test files are and issuing the command:

python -m SimpleHTTPServer

It should start up a web server on port 8000 (might be something else, but it'll tell you in the console what port it's listening on), then browse to http://localhost:8000/mytestpage.html

If you don't have python there are equivalent modules in Ruby, or Visual Web Developer Express comes with a built in local web server.

There are two problems on our way to the absolute path:

1. The placement found will be not where the source files lie, but where the class is saved. And the resource folder almost surely will lie somewhere in the source folder of the project.
2. The same functions for retrieving the resource work differently if the class runs in a plugin or in a package directly in the workspace.

The following code will give us all useful paths:

    URL localPackage = this.getClass().getResource("");
    URL urlLoader = YourClassName.class.getProtectionDomain().getCodeSource().getLocation();
    String localDir = localPackage.getPath();
    String loaderDir = urlLoader.getPath();
    System.out.printf("loaderDir = %s\n localDir = %s\n", loaderDir, localDir);

Here both functions that can be used for localization of the resource folder are researched. As for class, it can be got in either way, statically or dynamically.

If the project is not in the plugin, the code if run in JUnit, will print:

loaderDir = /C:.../ws/source.dir/target/test-classes/
 localDir = /C:.../ws/source.dir/target/test-classes/package/

So, to get to src/rest/resources we should go up and down the file tree. Both methods can be used. Notice, we can't use getResource(resourceFolderName), for that folder is not in the target folder. Nobody puts resources in the created folders, I hope.

If the class is in the package that is in the plugin, the output of the same test will be:

loaderDir = /C:.../ws/plugin/bin/
 localDir = /C:.../ws/plugin/bin/package/

So, again we should go up and down the folder tree.

The most interesting is the case when the package is launched in the plugin. As JUnit plugin test, for our example. The output is:

loaderDir = /C:.../ws/plugin/
 localDir = /package/

Here we can get the absolute path only combining the results of both functions. And it is not enough. Between them we should put the local path of the place where the classes packages are, relatively to the plugin folder. Probably, you will have to insert something as src or src/test/resource here.

You can insert the code into yours and see the paths that you have.

I know it's maybe a little late to answer this question but, more data is not going to kill someone. Here's a very fast function :

function format_filesize($B, $D=2){
    $S = 'BkMGTPEZY';
    $F = floor((strlen($B) - 1) / 3);
    return sprintf("%.{$D}f", $B/pow(1024, $F)).' '.@$S[$F].'B';
}

EDIT: I updated my post to include the fix proposed by camomileCase:

function format_filesize($B, $D=2){
    $S = 'kMGTPEZY';
    $F = floor((strlen($B) - 1) / 3);
    return sprintf("%.{$D}f", $B/pow(1024, $F)).' '.@$S[$F-1].'B';
}

You can do this with the aeimageresize jquery plugin.

https://plugins.jquery.com/ae.image.resize

https://github.com/adeelejaz/jquery-image-resize

$(function() {
    $( ".resizeme" ).aeImageResize({ height: 250, width: 250 });
});

import os
path = "C:/Documents and Settings/flow_model/"
os.chdir(path)
os.system("flow.exe")

The "big iron" answer is generally one thread per limited resource -- processor (CPU bound), arm (I/O bound), etc -- but that only works if you can route the work to the correct thread for the resource to be accessed.

Where that's not possible, consider that you have fungible resources (CPUs) and non-fungible resources (arms). For CPUs it's not critical to assign each thread to a specific CPU (though it helps with cache management), but for arms, if you can't assign a thread to the arm, you get into queuing theory and what's optimal number to keep arms busy. Generally I'm thinking that if you can't route requests based on the arm used, then having 2-3 threads per arm is going to be about right.

A complication comes about when the unit of work passed to the thread doesn't execute a reasonably atomic unit of work. Eg, you may have the thread at one point access the disk, at another point wait on a network. This increases the number of "cracks" where additional threads can get in and do useful work, but it also increases the opportunity for additional threads to pollute each other's caches, etc, and bog the system down.

Of course, you must weigh all this against the "weight" of a thread. Unfortunately, most systems have very heavyweight threads (and what they call "lightweight threads" often aren't threads at all), so it's better to err on the low side.

What I've seen in practice is that very subtle differences can make an enormous difference in how many threads are optimal. In particular, cache issues and lock conflicts can greatly limit the amount of practical concurrency.

An alternative way is to just bundle without the gem group that contains the things you don't have.

So do:

bundle install --without assets

you don't have to modify the Gemfile at all, providing of course you are not doing asset chain stuff - which usually applies in non-development environments. Bundle will remember your '--without' setting in the .bundle/config file.

See ?substr

R> substr(a, 1, 4)
[1] "left"

You should be able to use the /quiet or /qn options with msiexec to perform a silent install.

MSI packages export public properties, which you can set with the PROPERTY=value syntax on the end of the msiexec parameters.

For example, this command installs a package with no UI and no reboot, with a log and two properties:

msiexec /i c:\path\to\package.msi /quiet /qn /norestart /log c:\path\to\install.log PROPERTY1=value1 PROPERTY2=value2

You can read the options for msiexec by just running it with no options from Start -> Run.

Both approaches behave differently if you use a spied object (annotated with @Spy) instead of a mock (annotated with @Mock):

• when(...) thenReturn(...) makes a real method call just before the specified value will be returned. So if the called method throws an Exception you have to deal with it / mock it etc. Of course you still get your result (what you define in thenReturn(...))

• doReturn(...) when(...) does not call the method at all.

Example:

public class MyClass {
     protected String methodToBeTested() {
           return anotherMethodInClass();
     }

     protected String anotherMethodInClass() {
          throw new NullPointerException();
     }
}

Test:

@Spy
private MyClass myClass;

// ...

// would work fine
doReturn("test").when(myClass).anotherMethodInClass();

// would throw a NullPointerException
when(myClass.anotherMethodInClass()).thenReturn("test");

echo $this->db->select('title, content, date')->get_compiled_select();

The Parcelable interface is a good way to pass an object with an Intent.

How can I make my custom objects Parcelable? is a pretty good answer on how to use Parcelable

The official google docs also include an example

In most of the cases, if you are unable to export the certificate as a PFX (including the private key) is because MMC/IIS cannot find/don't have access to the private key (used to generate the CSR). These are the steps I followed to fix this issue:

• Run MMC as Admin
  • Generate the CSR using MMC. Follow this instructions to make the certificate exportable.
• Once you get the certificate from the CA (crt + p7b), import them (Personal\Certificates, and Intermediate Certification Authority\Certificates)
• IMPORTANT: Right-click your new certificate (Personal\Certificates) All Tasks..Manage Private Key, and assign permissions to your account or Everyone (risky!). You can go back to previous permissions once you have finished.
• Now, right-click the certificate and select All Tasks..Export, and you should be able to export the certificate including the private key as a PFX file, and you can upload it to Azure!

Hope this helps!

You don't have to use vectors. If you want to stick with plain arrays, you can do something like this:

int arr[] = new int[15];
unsigned int arr_length = 0;

Now, if you want to add an element to the end of the array, you can do this:

if (arr_length < 15) {
  arr[arr_length++] = <number>;
} else {
  // Handle a full array.
}

It's not as short and graceful as the PHP equivalent, but it accomplishes what you were attempting to do. To allow you to easily change the size of the array in the future, you can use a #define.

#define ARRAY_MAX 15

int arr[] = new int[ARRAY_MAX];
unsigned int arr_length = 0;

if (arr_length < ARRAY_MAX) {
  arr[arr_length++] = <number>;
} else {
  // Handle a full array.
}

This makes it much easier to manage the array in the future. By changing 15 to 100, the array size will be changed properly in the whole program. Note that you will have to set the array to the maximum expected size, as you can't change it once the program is compiled. For example, if you have an array of size 100, you could never insert 101 elements.

If you will be using elements off the end of the array, you can do this:

if (arr_length > 0) {
  int value = arr[arr_length--];
} else {
  // Handle empty array.
}

If you want to be able to delete elements off the beginning, (ie a FIFO), the solution becomes more complicated. You need a beginning and end index as well.

#define ARRAY_MAX 15

int arr[] = new int[ARRAY_MAX];
unsigned int arr_length = 0;
unsigned int arr_start = 0;
unsigned int arr_end = 0;

// Insert number at end.
if (arr_length < ARRAY_MAX) {
  arr[arr_end] = <number>;
  arr_end = (arr_end + 1) % ARRAY_MAX;
  arr_length ++;
} else {
  // Handle a full array.
}

// Read number from beginning.
if (arr_length > 0) {
  int value = arr[arr_start];
  arr_start = (arr_start + 1) % ARRAY_MAX;
  arr_length --;
} else {
  // Handle an empty array.
}

// Read number from end.
if (arr_length > 0) {
  int value = arr[arr_end];
  arr_end = (arr_end + ARRAY_MAX - 1) % ARRAY_MAX;
  arr_length --;
} else {
  // Handle an empty array.
}

Here, we are using the modulus operator (%) to cause the indexes to wrap. For example, (99 + 1) % 100 is 0 (a wrapping increment). And (99 + 99) % 100 is 98 (a wrapping decrement). This allows you to avoid if statements and make the code more efficient.

You can also quickly see how helpful the #define is as your code becomes more complex. Unfortunately, even with this solution, you could never insert over 100 items (or whatever maximum you set) in the array. You are also using 100 bytes of memory even if only 1 item is stored in the array.

This is the primary reason why others have recommended vectors. A vector is managed behind the scenes and new memory is allocated as the structure expands. It is still not as efficient as an array in situations where the data size is already known, but for most purposes the performance differences will not be important. There are trade-offs to each approach and it's best to know both.

For those who wants to type password within the command line. It is possible but recommend to pass it inside quotes so that the special character won't cause any issue.

mysqldump -h'my.address.amazonaws.com' -u'my_username' -p'password' db_name > /path/backupname.sql

You would need to install pip3.

On Linux, the command would be: sudo apt install python3-pip

On Mac, using brew, first brew install python3
Then brew postinstall python3

Try calling pip3 -V to see if it worked.

There is a way to insert sections in partial views, though it's not pretty. You need to have access to two variables from the parent View. Since part of your partial view's very purpose is to create that section, it makes sense to require these variables.

Here's what it looks like to insert a section in the partial view:

@model KeyValuePair<WebPageBase, HtmlHelper>
@{
    Model.Key.DefineSection("SectionNameGoesHere", () =>
    {
        Model.Value.ViewContext.Writer.Write("Test");
    });
}

And in the page inserting the partial view...

@Html.Partial(new KeyValuePair<WebPageBase, HtmlHelper>(this, Html))

You can also use this technique to define the contents of a section programmatically in any class.

Enjoy!

If you are displaying ads using XML layout and if you already have "ads:testDevices=" in your layout XML file, AdMob will NOT print the "To get test ads on this device..." message in the LogCat output. Take that out and then you will see the LogCat message.

Here is a nice tutorial on how to find device id in LogCat: http://webhole.net/2011/12/02/android-sdk-tutorial-get-admob-test-device-id/

You can use cut to split the line on spaces and return only the first such field:

md5=$(md5sum "$my_iso_file" | cut -d ' ' -f 1)

This works like magic, use it in the CSS file on the div you want to have on the new line:

.div_class {
    clear: left;
}

Or declare it in the html:

<div style="clear: left">
     <!-- Content... -->
</div>

Collections.synchronizedMap() method synchronizes all the methods of the HashMap and effectively reduces it to a data structure where one thread can enter at a time because it locks every method on a common lock.

In ConcurrentHashMap synchronization is done a little differently. Rather than locking every method on a common lock, ConcurrentHashMap uses separate lock for separate buckets thus locking only a portion of the Map. By default there are 16 buckets and also separate locks for separate buckets. So the default concurrency level is 16. That means theoretically any given time 16 threads can access ConcurrentHashMap if they all are going to separate buckets.

try this:

$(window).unbind('scroll');

it works in my project

function StopWatch() {
    let startTime, endTime, running, duration = 0
    
    this.start = () => {
        if (running) console.log('its already running')
        else {
            running = true
            startTime = Date.now()
        }
    }

    this.stop = () => {
        if (!running) console.log('its not running!')
        else {
            running = false
            endTime = Date.now()

            const seconds = (endTime - startTime) / 1000
            duration += seconds
        }
    }

    this.restart = () => {
        startTime = endTime = null
        running = false
        duration = 0
    }
    
    Object.defineProperty(this, 'duration', {
        get: () => duration.toFixed(2)
    })

}

const sw =  new StopWatch()

sw.start()
sw.stop()

sw.duration

I have found the other workaround: to exclude libinstrument.dylib from project path. To do so, go to the Preferences -> Build, Execution and Deployment -> Compiler -> Excludes -> + and here add file by the path in error message.

Take a look at svnmerge.py. It's command-line, can't be invoked by TortoiseSVN, but it's more powerful. From the FAQ:

Traditional subversion will let you merge changes, but it doesn't "remember" what you've already merged. It also doesn't provide a convenient way to exclude a change set from being merged. svnmerge.py automates some of the work, and simplifies it. Svnmerge also creates a commit message with the log messages from all of the things it merged.

You may try to use pagehide event for Chrome and Safari.

Check these links:

How to detect browser support for pageShow and pageHide?

http://www.webkit.org/blog/516/webkit-page-cache-ii-the-unload-event/

Here's what I think is a better method:

public int getYearsBetweenDates(Date first, Date second) {
    Calendar firstCal = GregorianCalendar.getInstance();
    Calendar secondCal = GregorianCalendar.getInstance();

    firstCal.setTime(first);
    secondCal.setTime(second);

    secondCal.add(Calendar.DAY_OF_YEAR, 1 - firstCal.get(Calendar.DAY_OF_YEAR));

    return secondCal.get(Calendar.YEAR) - firstCal.get(Calendar.YEAR);
}

EDIT

Apart from a bug which I fixed, this method does not work well with leap years. Here's a complete test suite. I guess you're better off using the accepted answer.

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;

class YearsBetweenDates {
    public static int getYearsBetweenDates(Date first, Date second) {
        Calendar firstCal = GregorianCalendar.getInstance();
        Calendar secondCal = GregorianCalendar.getInstance();

        firstCal.setTime(first);
        secondCal.setTime(second);

        secondCal.add(Calendar.DAY_OF_YEAR, 1 - firstCal.get(Calendar.DAY_OF_YEAR));

        return secondCal.get(Calendar.YEAR) - firstCal.get(Calendar.YEAR);
    }

    private static class TestCase {
        public Calendar date1;
        public Calendar date2;
        public int expectedYearDiff;
        public String comment;

        public TestCase(Calendar date1, Calendar date2, int expectedYearDiff, String comment) {
            this.date1 = date1;
            this.date2 = date2;
            this.expectedYearDiff = expectedYearDiff;
            this.comment = comment;
        }
    }

    private static TestCase[] tests = {
        new TestCase(
                new GregorianCalendar(2014, Calendar.JULY, 15),
                new GregorianCalendar(2015, Calendar.JULY, 15),
                1,
                "exactly one year"),
        new TestCase(
                new GregorianCalendar(2014, Calendar.JULY, 15),
                new GregorianCalendar(2017, Calendar.JULY, 14),
                2,
                "one day less than 3 years"),
        new TestCase(
                new GregorianCalendar(2015, Calendar.NOVEMBER, 3),
                new GregorianCalendar(2017, Calendar.MAY, 3),
                1,
                "a year and a half"),
        new TestCase(
                new GregorianCalendar(2016, Calendar.JULY, 15),
                new GregorianCalendar(2017, Calendar.JULY, 15),
                1,
                "leap years do not compare correctly"),
    };

    public static void main(String[] args) {
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
        for (TestCase t : tests) {
            int diff = getYearsBetweenDates(t.date1.getTime(), t.date2.getTime());
            String result = diff == t.expectedYearDiff ? "PASS" : "FAIL";
            System.out.println(t.comment + ": " +
                    df.format(t.date1.getTime()) + " -> " +
                    df.format(t.date2.getTime()) + " = " +
                    diff + ": " + result);
        }
    }
}

On Android platforms, Oruxmaps (http://www.oruxmaps.com) does a great job at caching all WMS sources. It is available in the play store. I use it daily in remote areas without any connectivity, works like a charm.

No

Only if the other application is designed to allow it, by providing components for you to add into your own application.

json works with Unicode text in Python 3 (JSON format itself is defined only in terms of Unicode text) and therefore you need to decode bytes received in HTTP response. r.headers.get_content_charset('utf-8') gets your the character encoding:

#!/usr/bin/env python3
import io
import json
from urllib.request import urlopen

with urlopen('https://httpbin.org/get') as r, \
     io.TextIOWrapper(r, encoding=r.headers.get_content_charset('utf-8')) as file:
    result = json.load(file)
print(result['headers']['User-Agent'])

It is not necessary to use io.TextIOWrapper here:

#!/usr/bin/env python3
import json
from urllib.request import urlopen

with urlopen('https://httpbin.org/get') as r:
    result = json.loads(r.read().decode(r.headers.get_content_charset('utf-8')))
print(result['headers']['User-Agent'])

EDIT: There is now a queuecomplete event that you can use for exactly that purpose.

Previous answer:

Paul B.'s answer works, but an easier way to do so, is by checking if there are still files in the queue or uploading whenever a file completes. This way you don't have to keep track of the files yourself:

Dropzone.options.filedrop = {
  init: function () {
    this.on("complete", function (file) {
      if (this.getUploadingFiles().length === 0 && this.getQueuedFiles().length === 0) {
        doSomething();
      }
    });
  }
};

I found a smooth solution using java 8 and polygenelubricants' solution.

parameters.entrySet().stream()
    .map(p -> urlEncodeUTF8(p.getKey()) + "=" + urlEncodeUTF8(p.getValue()))
    .reduce((p1, p2) -> p1 + "&" + p2)
    .orElse("");

Like others have said, I had this exact same problem and it turned out to be related to the password / access secret. I generated a password for my s3 user that was not valid, and it didn't inform me. When trying to connect with the user, it gave this error. It doesn't seem to like certain or all symbols in passwords (at least for Minio)

Any class which extends Exception class will be a user defined Checked exception class where as any class which extends RuntimeException will be Unchecked exception class. as mentioned in User defined exception are checked or unchecked exceptions So, not throwing the checked exception(be it user-defined or built-in exception) gives compile time error.

Checked exception are the exceptions that are checked at compile time.

Unchecked exception are the exceptions that are not checked at compiled time

This is the error line:

if (called_from.equalsIgnoreCase("add")) {  --->38th error line

This means that called_from is null. Simple check if it is null above:

String called_from = getIntent().getStringExtra("called");

if(called_from == null) {
    called_from = "empty string";
}
if (called_from.equalsIgnoreCase("add")) {
    // do whatever
} else {
    // do whatever
}

That way, if called_from is null, it'll execute the else part of your if statement.

I changed the plugin folder name. Restart Notepad ++ It works now, a

this sample code loads the Japanese yield curve, and creates PCA components. It then estimates a given date's move using the PCA and compares it against the actual move.

%matplotlib inline

import numpy as np
import scipy as sc
from scipy import stats
from IPython.display import display, HTML
import pandas as pd
import matplotlib
import matplotlib.pyplot as plt
import datetime
from datetime import timedelta

import quandl as ql

start = "2016-10-04"
end = "2019-10-04"

ql_data = ql.get("MOFJ/INTEREST_RATE_JAPAN", start_date = start, end_date = end).sort_index(ascending= False)

eigVal_, eigVec_ = np.linalg.eig(((ql_data[:300]).diff(-1)*100).cov()) # take latest 300 data-rows and normalize to bp
print('number of PCA are', len(eigVal_))

loc_ = 10
plt.plot(eigVec_[:,0], label = 'PCA1')
plt.plot(eigVec_[:,1], label = 'PCA2')
plt.plot(eigVec_[:,2], label = 'PCA3')
plt.xticks(range(len(eigVec_[:,0])), ql_data.columns)
plt.legend()
plt.show()

x = ql_data.diff(-1).iloc[loc_].values * 100 # set the differences
x_ = x[:,np.newaxis]
a1, _, _, _ = np.linalg.lstsq(eigVec_[:,0][:, np.newaxis], x_) # linear regression without intercept
a2, _, _, _ = np.linalg.lstsq(eigVec_[:,1][:, np.newaxis], x_)
a3, _, _, _ = np.linalg.lstsq(eigVec_[:,2][:, np.newaxis], x_)

pca_mv = m1 * eigVec_[:,0] + m2 * eigVec_[:,1] + m3 * eigVec_[:,2] + c1 + c2 + c3
pca_MV = a1[0][0] * eigVec_[:,0] + a2[0][0] * eigVec_[:,1] + a3[0][0] * eigVec_[:,2]
pca_mV = b1 * eigVec_[:,0] + b2 * eigVec_[:,1] + b3 * eigVec_[:,2]

display(pd.DataFrame([eigVec_[:,0], eigVec_[:,1], eigVec_[:,2], x, pca_MV]))
print('PCA1 regression is', a1, a2, a3)


plt.plot(pca_MV)
plt.title('this is with regression and no intercept')
plt.plot(ql_data.diff(-1).iloc[loc_].values * 100, )
plt.title('this is with actual moves')
plt.show()

I think all of the answers here cover the core of what the lambda function does in the context of sorted() quite nicely, however I still feel like a description that leads to an intuitive understanding is lacking, so here is my two cents.

For the sake of completeness, I'll state the obvious up front: sorted() returns a list of sorted elements and if we want to sort in a particular way or if we want to sort a complex list of elements (e.g. nested lists or a list of tuples) we can invoke the key argument.

For me, the intuitive understanding of the key argument, why it has to be callable, and the use of lambda as the (anonymous) callable function to accomplish this comes in two parts.

1. Using lamba ultimately means you don't have to write (define) an entire function, like the one sblom provided an example of. Lambda functions are created, used, and immediately destroyed - so they don't funk up your code with more code that will only ever be used once. This, as I understand it, is the core utility of the lambda function and its applications for such roles are broad. Its syntax is purely by convention, which is in essence the nature of programmatic syntax in general. Learn the syntax and be done with it.

Lambda syntax is as follows:

lambda input_variable(s): tasty one liner

e.g.

In [1]: f00 = lambda x: x/2

In [2]: f00(10)
Out[2]: 5.0

In [3]: (lambda x: x/2)(10)
Out[3]: 5.0

In [4]: (lambda x, y: x / y)(10, 2)
Out[4]: 5.0

In [5]: (lambda: 'amazing lambda')() # func with no args!
Out[5]: 'amazing lambda'

2. The idea behind the key argument is that it should take in a set of instructions that will essentially point the 'sorted()' function at those list elements which should used to sort by. When it says key=, what it really means is: As I iterate through the list one element at a time (i.e. for e in list), I'm going to pass the current element to the function I provide in the key argument and use that to create a transformed list which will inform me on the order of final sorted list.

Check it out:

mylist = [3,6,3,2,4,8,23]
sorted(mylist, key=WhatToSortBy)

Base example:

sorted(mylist)

[2, 3, 3, 4, 6, 8, 23] # all numbers are in order from small to large.

Example 1:

mylist = [3,6,3,2,4,8,23]
sorted(mylist, key=lambda x: x%2==0)

[3, 3, 23, 6, 2, 4, 8] # Does this sorted result make intuitive sense to you?

Notice that my lambda function told sorted to check if (e) was even or odd before sorting.

BUT WAIT! You may (or perhaps should) be wondering two things - first, why are my odds coming before my evens (since my key value seems to be telling my sorted function to prioritize evens by using the mod operator in x%2==0). Second, why are my evens out of order? 2 comes before 6 right? By analyzing this result, we'll learn something deeper about how the sorted() 'key' argument works, especially in conjunction with the anonymous lambda function.

Firstly, you'll notice that while the odds come before the evens, the evens themselves are not sorted. Why is this?? Lets read the docs:

Key Functions Starting with Python 2.4, both list.sort() and sorted() added a key parameter to specify a function to be called on each list element prior to making comparisons.

We have to do a little bit of reading between the lines here, but what this tells us is that the sort function is only called once, and if we specify the key argument, then we sort by the value that key function points us to.

So what does the example using a modulo return? A boolean value: True == 1, False == 0. So how does sorted deal with this key? It basically transforms the original list to a sequence of 1s and 0s.

[3,6,3,2,4,8,23] becomes [0,1,0,1,1,1,0]

Now we're getting somewhere. What do you get when you sort the transformed list?

[0,0,0,1,1,1,1]

Okay, so now we know why the odds come before the evens. But the next question is: Why does the 6 still come before the 2 in my final list? Well that's easy - its because sorting only happens once! i.e. Those 1s still represent the original list values, which are in their original positions relative to each other. Since sorting only happens once, and we don't call any kind of sort function to order the original even values from low to high, those values remain in their original order relative to one another.

The final question is then this: How do I think conceptually about how the order of my boolean values get transformed back in to the original values when I print out the final sorted list?

Sorted() is a built-in method that (fun fact) uses a hybrid sorting algorithm called Timsort that combines aspects of merge sort and insertion sort. It seems clear to me that when you call it, there is a mechanic that holds these values in memory and bundles them with their boolean identity (mask) determined by (...!) the lambda function. The order is determined by their boolean identity calculated from the lambda function, but keep in mind that these sublists (of one's and zeros) are not themselves sorted by their original values. Hence, the final list, while organized by Odds and Evens, is not sorted by sublist (the evens in this case are out of order). The fact that the odds are ordered is because they were already in order by coincidence in the original list. The takeaway from all this is that when lambda does that transformation, the original order of the sublists are retained.

So how does this all relate back to the original question, and more importantly, our intuition on how we should implement sorted() with its key argument and lambda?

That lambda function can be thought of as a pointer that points to the values we need to sort by, whether its a pointer mapping a value to its boolean transformed by the lambda function, or if its a particular element in a nested list, tuple, dict, etc., again determined by the lambda function.

Lets try and predict what happens when I run the following code.

mylist = [(3, 5, 8), (6, 2, 8), ( 2, 9, 4), (6, 8, 5)]
sorted(mylist, key=lambda x: x[1])

My sorted call obviously says, "Please sort this list". The key argument makes that a little more specific by saying, for each element (x) in mylist, return index 1 of that element, then sort all of the elements of the original list 'mylist' by the sorted order of the list calculated by the lambda function. Since we have a list of tuples, we can return an indexed element from that tuple. So we get:

[(6, 2, 8), (3, 5, 8), (6, 8, 5), (2, 9, 4)]

Run that code, and you'll find that this is the order. Try indexing a list of integers and you'll find that the code breaks.

This was a long winded explanation, but I hope this helps to 'sort' your intuition on the use of lambda functions as the key argument in sorted() and beyond.

If you want to find all records that are not NULL, and either empty or have any number of spaces, this will work:

LIKE '%\ '

Make sure that there's a space after the backslash. More info here: http://dev.mysql.com/doc/refman/5.0/en/string-comparison-functions.html

"Editor's" note: This post may contain outdated information. Please see comments and this question regarding changes in Git since 1.6.1.

Symlinked directories:

It's important to note what happens when there is a directory which is a soft link. Any Git pull with an update removes the link and makes it a normal directory. This is what I learnt hard way. Some insights here and here.

Example

Before

 ls -l
 lrwxrwxrwx 1 admin adm   29 Sep 30 15:28 src/somedir -> /mnt/somedir

git add/commit/push

It remains the same

After git pull AND some updates found

 drwxrwsr-x 2 admin adm 4096 Oct  2 05:54 src/somedir

One way is to use the multiple class selector (no space as that is the descendant selector):

.reMode_hover:not(.reMode_selected):hover _x000D_
{_x000D_
   background-color: #f0ac00;_x000D_
}

<a href="" title="Design" class="reMode_design  reMode_hover">_x000D_
    <span>Design</span>_x000D_
</a>_x000D_
_x000D_
<a href="" title="Design" _x000D_
 class="reMode_design  reMode_hover reMode_selected">_x000D_
    <span>Design</span>_x000D_
</a>

UPDATE table_name SET
    destination_column_name=orig_column_name
WHERE condition_if_necessary

Swift 4:

First create an outlet for your UIImageView

@IBOutlet var infoImage: UIImageView!

Then use the image property in UIImageView

infoImage.image = UIImage(named: "icons8-info-white")

You should run your entire script as superuser. If you want to run some command as non-superuser, use "-u" option of sudo:

#!/bin/bash

sudo -u username command1
command2
sudo -u username command3
command4

When running as root, sudo doesn't ask for a password.

This works for me if you have config and the private key file in the /Jenkins/.ssh/ you need to chown (change owner) for these 2 files then restart jenkins in order for the jenkins instance to read these 2 files.

Since I don't see the jQuery tag in the OP, here is a javascript only option :

document.addEventListener("DOMContentLoaded", function (event) {
    var _selector = document.querySelector('input[name=myCheckbox]');
    _selector.addEventListener('change', function (event) {
        if (_selector.checked) {
            // do something if checked
        } else {
            // do something else otherwise
        }
    });
});

See JSFIDDLE

textarea {
  white-space: pre;
  overflow-wrap: normal;
  overflow-x: scroll;
}

white-space: nowrap also works if you don't care about whitespace, but of course you don't want that if you're working with code (or indented paragraphs or any content where there might deliberately be multiple spaces) ... so i prefer pre.

overflow-wrap: normal (was word-wrap in older browsers) is needed in case some parent has changed that setting; it can cause wrapping even if pre is set.

also -- contrary to the currently accepted answer -- textareas do often wrap by default. pre-wrap seems to be the default on my browser.

I'm debugging an issue I'm having with SSL connecting to a database (MySQL RDS) using an ORM called, Prisma. The database connection string requires a PKCS12 (.p12) file (if interested, described here), which brought me here.

I know the question has been answered, but I found the following steps (in Github Issue#2676) to be helpful for creating a .p12 file and wanted to share. Good luck!

1. Generate 2048-bit RSA private key:

   openssl genrsa -out key.pem 2048

2. Generate a Certificate Signing Request:

   openssl req -new -sha256 -key key.pem -out csr.csr

3. Generate a self-signed x509 certificate suitable for use on web servers.

   openssl req -x509 -sha256 -days 365 -key key.pem -in csr.csr -out certificate.pem

4. Create SSL identity file in PKCS12 as mentioned here

   openssl pkcs12 -export -out client-identity.p12 -inkey key.pem -in certificate.pem

On OS X High Sierra, I had to do this:

sudo install -d -o $(whoami) -g admin /usr/local/Frameworks
brew uninstall --ignore-dependencies python
brew install python
python --version # should work, returns 2.7, which is a Python thing (it's weird, but ok)

credit to https://gist.github.com/irazasyed/7732946#gistcomment-2235469

I think it's better than recursively chowning the /usr/local dir, but that may solve other problems ;)

The problem is your query returned false meaning there was an error in your query. After your query you could do the following:

if (!$result) {
    die(mysqli_error($link));
}

Or you could combine it with your query:

$results = mysqli_query($link, $query) or die(mysqli_error($link));

That will print out your error.

Also... you need to sanitize your input. You can't just take user input and put that into a query. Try this:

$query = "SELECT * FROM shopsy_db WHERE name LIKE '%" . mysqli_real_escape_string($link, $searchTerm) . "%'";

In reply to: Table 'sookehhh_shopsy_db.sookehhh_shopsy_db' doesn't exist

Are you sure the table name is sookehhh_shopsy_db? maybe it's really like users or something.

The easy way to do is, put all your files including index.html or something with all resources such as CSS, JS etc. in a folder public or you can name it whatever you want and now you can use express js and just tell app to use the _dirname as :

In your server.js using express add these

var express = require('express');
var app = express();
app.use(express.static(__dirname + '/public'));

and if you want to have seprate directory add new dir under public directory and use that path "/public/YourDirName"

SO what we are doing here exactly? we are creating express instance named app and we are giving the adress if the public directory to access all the resources. Hope this helps !

All these worked for me,

HTML part:

<div id="targetDIV" style="border: 1px solid Red">
    This text is surrounded by a DIV tag whose id is "targetDIV".
</div>

JavaScript code:

//Way 1: appendTo()
<script type="text/javascript">
    $("<div>hello stackoverflow users</div>").appendTo("#targetDIV"); //appendTo: Append at inside bottom
</script>

//Way 2: prependTo()
<script type="text/javascript">
    $("<div>Hello, Stack Overflow users</div>").prependTo("#targetDIV"); //prependTo: Append at inside top
</script>

//Way 3: html()
<script type="text/javascript">
    $("#targetDIV").html("<div>Hello, Stack Overflow users</div>"); //.html(): Clean HTML inside and append
</script>

//Way 4: append()
<script type="text/javascript">
    $("#targetDIV").append("<div>Hello, Stack Overflow users</div>"); //Same as appendTo
</script>

document.activeElement is now part of the HTML5 working draft specification, but it might not yet be supported in some non-major/mobile/older browsers. You can fall back to querySelector (if that is supported). It's also worth mentioning that document.activeElement will return document.body if no element is focused — even if the browser window doesn't have focus.

The following code will work around this issue and fall back to querySelector giving a little better support.

var focused = document.activeElement;
if (!focused || focused == document.body)
    focused = null;
else if (document.querySelector)
    focused = document.querySelector(":focus");

An addition thing to note is the performance difference between these two methods. Querying the document with selectors will always be much slower than accessing the activeElement property. See this jsperf.com test.

I just had the same problem. I'd say it has nothing to do with the apache.conf.

a2ensite must have changed - line 532 is the line that enforces the .conf suffix:

else {
    $dir    = 'sites';
    $sffx   = '.conf';
    $reload = 'reload';
}

If you change it to:

else {
    $dir    = 'sites';
    #$sffx   = '.conf';
    $sffx   = '';
    $reload = 'reload';
}

...it will work without any suffix.

Of course you wouldn't want to change the a2ensite script, but changing the conf file's suffix is the correct way.

It's probably just a way of enforcing the ".conf"-suffix.

This may not be the answer you are looking for, but may help others whose jquery is not working properly, or working sometimes and not at other times.

This could be because your jquery has not yet loaded and you have started to interact with the page. Either put jquery on top in head (probably not a very great idea) or use a loader or spinner to stop the user from interacting with the page until the entire jquery has loaded.

2x faster than the versions before mentioned - mostly because transform() and inner_product() loops are joined. Sorry about my shortcut/typedefs/macro: Flo = float. CR const ref. VFlo - vector. Tested in VS2010

#define fe(EL, CONTAINER)   for each (auto EL in CONTAINER)  //VS2010
Flo stdDev(VFlo CR crVec) {
    SZ  n = crVec.size();               if (n < 2) return 0.0f;
    Flo fSqSum = 0.0f, fSum = 0.0f;
    fe(f, crVec) fSqSum += f * f;       // EDIT: was Cit(VFlo, crVec) {
    fe(f, crVec) fSum   += f;
    Flo fSumSq      = fSum * fSum;
    Flo fSumSqDivN  = fSumSq / n;
    Flo fSubSqSum   = fSqSum - fSumSqDivN;
    Flo fPreSqrt    = fSubSqSum / (n - 1);
    return sqrt(fPreSqrt);
}

Perhaps your code is behind Sheet1, so when you change the focus to Sheet2 the objects cannot be found? If that's the case, simply specifying your target worksheet might help:

Sheets("Sheet1").Range("C21").Select

I'm not very familiar with how Select works because I try to avoid it as much as possible :-). You can define and manipulate ranges without selecting them. Also it's a good idea to be explicit about everything you reference. That way, you don't lose track if you go from one sheet or workbook to another. Try this:

Option Explicit

Sub CopySheet1_to_PasteSheet2()

    Dim CLastFundRow As Integer
    Dim CFirstBlankRow As Integer
    Dim wksSource As Worksheet, wksDest As Worksheet
    Dim rngStart As Range, rngSource As Range, rngDest As Range

    Set wksSource = ActiveWorkbook.Sheets("Sheet1")
    Set wksDest = ActiveWorkbook.Sheets("Sheet2")

    'Finds last row of content
    CLastFundRow = wksSource.Range("C21").End(xlDown).Row
    'Finds first row without content
    CFirstBlankRow = CLastFundRow + 1

    'Copy Data
    Set rngSource = wksSource.Range("A2:C" & CLastFundRow)

    'Paste Data Values
    Set rngDest = wksDest.Range("A21")
    rngSource.Copy
    rngDest.PasteSpecial Paste:=xlPasteValues, Operation:=xlNone, SkipBlanks:=False, Transpose:=False
    'Bring back to top of sheet for consistancy
    wksDest.Range("A1").Select

End Sub

I think ForkJoinPool and related enhancement to Executor Framework is an important addition in Java 7.

It's not advisable to use the environment.*.ts files for your API URL configuration. It seems like you should because this mentions the word "environment".

Using this is actually compile-time configuration. If you want to change the API URL, you will need to re-build. That's something you don't want to have to do ... just ask your friendly QA department :)

What you need is runtime configuration, i.e. the app loads its configuration when it starts up.

Some other answers touch on this, but the difference is that the configuration needs to be loaded as soon as the app starts, so that it can be used by a normal service whenever it needs it.

To implement runtime configuration:

1. Add a JSON config file to the /src/assets/ folder (so that is copied on build)
2. Create an AppConfigService to load and distribute the config
3. Load the configuration using an APP_INITIALIZER

1. Add Config file to /src/assets

You could add it to another folder, but you'd need to tell the CLI that it is an asset in the angular.json. Start off using the assets folder:

{
  "apiBaseUrl": "https://development.local/apiUrl"
}

2. Create AppConfigService

This is the service which will be injected whenever you need the config value:

@Injectable({
  providedIn: 'root'
})
export class AppConfigService {

  private appConfig: any;

  constructor(private http: HttpClient) { }

  loadAppConfig() {
    return this.http.get('/assets/config.json')
      .toPromise()
      .then(data => {
        this.appConfig = data;
      });
  }

  // This is an example property ... you can make it however you want.
  get apiBaseUrl() {

    if (!this.appConfig) {
      throw Error('Config file not loaded!');
    }

    return this.appConfig.apiBaseUrl;
  }
}

3. Load the configuration using an APP_INITIALIZER

To allow the AppConfigService to be injected safely, with config fully loaded, we need to load the config at app startup time. Importantly, the initialisation factory function needs to return a Promise so that Angular knows to wait until it finishes resolving before finishing startup:

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    HttpClientModule
  ],
  providers: [
    {
      provide: APP_INITIALIZER,
      multi: true,
      deps: [AppConfigService],
      useFactory: (appConfigService: AppConfigService) => {
        return () => {
          //Make sure to return a promise!
          return appConfigService.loadAppConfig();
        };
      }
    }
  ],
  bootstrap: [AppComponent]
})
export class AppModule { }

Now you can inject it wherever you need to and all the config will be ready to read:

@Component({
  selector: 'app-test',
  templateUrl: './test.component.html',
  styleUrls: ['./test.component.scss']
})
export class TestComponent implements OnInit {

  apiBaseUrl: string;

  constructor(private appConfigService: AppConfigService) {}

  ngOnInit(): void {
    this.apiBaseUrl = this.appConfigService.apiBaseUrl;
  }

}

I can't say it strongly enough, configuring your API urls as compile-time configuration is an anti-pattern. Use runtime configuration.

in my.cnf file , please change the following

## Instead of skip-networking the default is now to listen only on ## localhost which is more compatible and is not less secure. ## bind-address = 127.0.0.1

jQuery is a JavaScript library.

Read

wiki-jQuery, github, jQuery vs. javascript?

What is JQuery?

Before JQuery, developers would create their own small frameworks (the group of code) this would allow all the developers to work around all the bugs and give them more time to work on features, so the JavaScript frameworks were born. Then came the collaboration stage, groups of developers instead of writing their own code would give it away for free and creating JavaScript code sets that everyone could use. That is what JQuery is, a library of JavaScript code. The best way to explain JQuery and its mission is well stated on the front page of the JQuery website which says:

JQuery is a fast and concise JavaScript Library that simplifies HTML document traversing, event handling, animating, and Ajax interactions for rapid web development.

As you can see all JQuery is JavaScript. There is more than one type of JavaScript set of code sets like MooTools it is just that JQuery is the most popular.

Which is the best JavaScript or JQuery is a contentious discussion, really the answer is neither is best. They both have their roles I have worked on online applications where JQuery was not the right tool and what the application needed was straight JavaScript development. But for most websites JQuery is all that is needed. What a web developer needs to do is make an informed decision on what tools are best for their client. Someone first coming into web development does need some exposure to both technologies just using JQuery all the time does not teach the nuances of JavaScript and how it affects the DOM. Using JavaScript all the time slows projects down and because of the JQuery library has ironed most of the issues that JavaScript will have between each web browser it makes the deployment safe as it is sure to work across all platforms.

---

JavaScript is a language. jQuery is a library built with JavaScript to help JavaScript programmers who are doing common web tasks.

See here.

I had the same problem and for me it was because the vc2010 redist x86 was too recent.

Check your temp folder (C:\Users\\AppData\Local\Temp) for the most recent file named

Microsoft Visual C++ 2010 x64 Redistributable Setup_20110608_xxx.html ##

and check if you have the following error

Installation Blockers:

A newer version of Microsoft Visual C++ 2010 Redistributable has been detected on the machine.

Final Result: Installation failed with error code: (0x000013EC), "A StopBlock was hit or a System >Requirement was not met." (Elapsed time: 0 00:00:00).

then go to Control Panel>Program & Features and uninstall all the

Microsoft Visual C++ 2010 x86/x64 redistributable - 10.0.(number over 30319)

After successful installation of DXSDK, simply run Windows Update and it will update the redistributables back to the latest version.

Sometimes, you may deal with an enumerated type with an underlying raw integer type that changes throughout the software development lifecycle. Here is an example that works well for that case:

public class MyClassThatLoadsTexturesEtc
{
    //...

    // Colors used for gems and sectors.
    public enum Color: Int
    {
        // Colors arranged in order of the spectrum.
        case First = 0
        case Red, Orange, Yellow, Green, Blue, Purple, Pink
        // --> Add more colors here, between the first and last markers.
        case Last
    }

    //...

    public func preloadGems()
    {
        // Preload all gems.
        for i in (Color.First.toRaw() + 1) ..< (Color.Last.toRaw())
        {
            let color = Color.fromRaw(i)!
            loadColoredTextures(forKey: color)
        }
    }

    //...
}

Jlordo approach covers specific situation. If you try to build an abstract method out of it, you can face a difficulty to check if 'textFrom' is before 'textTo'. Otherwise method can return a match for some other occurance of 'textFrom' in text.

Here is a ready-to-go abstract method that covers this disadvantage:

  /**
   * Get text between two strings. Passed limiting strings are not 
   * included into result.
   *
   * @param text     Text to search in.
   * @param textFrom Text to start cutting from (exclusive).
   * @param textTo   Text to stop cuutting at (exclusive).
   */
  public static String getBetweenStrings(
    String text,
    String textFrom,
    String textTo) {

    String result = "";

    // Cut the beginning of the text to not occasionally meet a      
    // 'textTo' value in it:
    result =
      text.substring(
        text.indexOf(textFrom) + textFrom.length(),
        text.length());

    // Cut the excessive ending of the text:
    result =
      result.substring(
        0,
        result.indexOf(textTo));

    return result;
  }

on command line

 example$:python
 >>> import scipy
 >>> scipy.__version__
 '0.9.0'

If I can offer another solution that has the added benefit of type checking, warnings if you are missing an enum value in your conversion, readability, and brevity.

For your given example: typedef enum { value1, value2, value3 } myValue; you can do this:

NSString *NSStringFromMyValue(myValue type) {
    const char* c_str = 0;
#define PROCESS_VAL(p) case(p): c_str = #p; break;
    switch(type) {
            PROCESS_VAL(value1);
            PROCESS_VAL(value2);
            PROCESS_VAL(value3);
    }
#undef PROCESS_VAL

    return [NSString stringWithCString:c_str encoding:NSASCIIStringEncoding];
}

As a side note. It is a better approach to declare your enums as so:

typedef NS_ENUM(NSInteger, MyValue) {
    Value1 = 0,
    Value2,
    Value3
}

With this you get type-safety (NSInteger in this case), you set the expected enum offset (= 0).

ON Xcode 6 Your try

     self.layer.layer.cornerRadius = 5.0f;

or

    self.layer.layer.cornerRadius = 5.0f;
    self.layer.clipsToBounds = YES;

I had the same problem on Windows 10. I just went to the Network & internet settings> Change adapter options> right-click on Wi-Fi and chose properties> Chose Internet protocol version 4 in the list and clicked properties> Turned on the "Use the following DNS server addresses" and filled the first part with "8.8.8.8" address. Problem solved!

Firebug as Firefox (FF) extension is currently (as per 01/2017) the only way to debug direct javascript responses from AJAX calls. Unfortunately, it's development is discontinued. And since Firefox 50, the Firebug also cannot be installed anymore due to compatability issues :-( They kind of emulated FF developer tools UI to recall Firebug UI in some way.

Unfortunatelly, FF native developer tools are not able to debug javascript returned directly by AJAX calls. Same applies to Chrome devel. tools.

I must have disabled upgrades of FF due to this issue, since I badly need to debug JS from XHR calls on current project. So not good news here - let's hope the feature to debug direct JS responses will be incorporated into FF/Chrome developer tools soon.

Small hints for routine work.

Create a bat file, name it and use for exact run/stop/restart Jenkins service

#!/bin/bash
# go to Jenkins folder
cd C:\Program Files (x86)\Jenkins

#to stop:
jenkins.exe stop

#to start:
#jenkins.exe start

#to restart:
#jenkins.exe restart

Why not write in a re-usable way ?

Create SetTime class:

class SetTime implements OnFocusChangeListener, OnTimeSetListener {   

       private EditText editText;
       private Calendar myCalendar;

       public SetTime(EditText editText, Context ctx){
           this.editText = editText;
           this.editText.setOnFocusChangeListener(this);
           this.myCalendar = Calendar.getInstance();

       }

        @Override
        public void onFocusChange(View v, boolean hasFocus) {
            // TODO Auto-generated method stub
            if(hasFocus){
                int hour = myCalendar.get(Calendar.HOUR_OF_DAY);
                int minute = myCalendar.get(Calendar.MINUTE);
                new TimePickerDialog(ctx, this, hour, minute, true).show();
            }
        }

        @Override
        public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
            // TODO Auto-generated method stub
            this.editText.setText( hourOfDay + ":" + minute);
        }

    }

Then call it from onCreate function:

    EditText editTextFromTime = (EditText) findViewById(R.id.editTextFromTime);
    SetTime fromTime = new SetTime(editTextFromTime, this);

Try the following code:

moment(startDate).startOf('months')
moment(startDate).endOf('months')

Found the chrome Options class in the Selenium source code.

Usage to create a Chrome driver instance:

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
chrome_options = Options()
chrome_options.add_argument("--disable-extensions")
driver = webdriver.Chrome(chrome_options=chrome_options)

To change color of selected ViewCell, there is a simple process without using custom renderer. Make Tapped event of your ViewCell as below

<ListView.ItemTemplate>
    <DataTemplate>
        <ViewCell Tapped="ViewCell_Tapped">            
        <Label Text="{Binding StudentName}" TextColor="Black" />
        </ViewCell>
    </DataTemplate>
</ListView.ItemTemplate>

In your ContentPage or .cs file, implement the event

private void ViewCell_Tapped(object sender, System.EventArgs e)
{
    if(lastCell!=null)
    lastCell.View.BackgroundColor = Color.Transparent;
    var viewCell = (ViewCell)sender;
    if (viewCell.View != null)
    {
        viewCell.View.BackgroundColor = Color.Red;
        lastCell = viewCell;
    }
} 

Declare lastCell at the top of your ContentPage like this ViewCell lastCell;

If you have them already in a byte[] array, you can use:

int result = ByteBuffer.wrap(bytes).getInt();

source: here

Simple example from: http://www.longtailvideo.com/blog/26517/using-the-browsers-new-html5-fullscreen-capabilities/

<script type="text/javascript">
  function goFullscreen(id) {
    // Get the element that we want to take into fullscreen mode
    var element = document.getElementById(id);

    // These function will not exist in the browsers that don't support fullscreen mode yet, 
    // so we'll have to check to see if they're available before calling them.

    if (element.mozRequestFullScreen) {
      // This is how to go into fullscren mode in Firefox
      // Note the "moz" prefix, which is short for Mozilla.
      element.mozRequestFullScreen();
    } else if (element.webkitRequestFullScreen) {
      // This is how to go into fullscreen mode in Chrome and Safari
      // Both of those browsers are based on the Webkit project, hence the same prefix.
      element.webkitRequestFullScreen();
   }
   // Hooray, now we're in fullscreen mode!
  }
</script>

<img class="video_player" src="image.jpg" id="player"></img>
<button onclick="goFullscreen('player'); return false">Click Me To Go Fullscreen! (For real)</button>

You create buttons dynamically because of that you need to call them with .live() method if you use jquery 1.7

but this method is deprecated (you can see the list of all deprecated method here) in newer version. if you want to use jquery 1.10 or above you need to call your buttons in this way:

$(document).on('click', 'selector', function(){ 
     // Your Code
});

For Example

If your html is something like this

<div id="btn-list">
    <div class="btn12">MyButton</div>
</div>

You can write your jquery like this

$(document).on('click', '#btn-list .btn12', function(){ 
     // Your Code
});

                     this.Visible = false;
                        //or                         // will make LOgin Form invisivble
                        //this.Enabled = false;
                         //  or
                       // this.Hide(); 



                        Form1 form1 = new Form1();
                        form1.ShowDialog();

                        this.Dispose();

I linux this works too:

import sys
sys.path.extend(["/path/to/dotpy/file/"])

Simply call .off() right before you call .on().

This will remove all event handlers:

$(element).off().on('click', function() {
// function body
});

To only remove registered 'click' event handlers:

$(element).off('click').on('click', function() {
// function body
});

git push --all

is the canonical way to push everything to a new bare repository.

Another way to do the same thing is to create your new, non-bare repository and then make a bare clone with

git clone --bare

then use

git remote add origin <new-remote-repo>

in the original (non-bare) repository.

Activity1 should start Activity2 with startActivityForResult().

Activity2 should use setResult() to send data back to Activity1.

In Activity2,

@Override
public void onBackPressed() {
    String data = mEditText.getText();
    Intent intent = new Intent();
    intent.putExtra("MyData", data);
    setResult(resultcode, intent);
}

In Activity1,

onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == 1) {
        if(resultCode == RESULT_OK) {
            String myStr=data.getStringExtra("MyData");
            mTextView.setText(myStr);
        }
    }
}

dynamic dynJson = JsonConvert.DeserializeObject(json);
foreach (var item in dynJson)
{
    Console.WriteLine("{0} {1} {2} {3}\n", item.id, item.displayName, 
        item.slug, item.imageUrl);
}

or

var list = JsonConvert.DeserializeObject<List<MyItem>>(json);

public class MyItem
{
    public string id;
    public string displayName;
    public string name;
    public string slug;
    public string imageUrl;
}

You can use the strip() function to remove trailing (and leading) whitespace; passing it an argument will let you specify which whitespace:

for i in range(len(lists)):
    grades.append(lists[i].strip('\n'))

It looks like you can just simplify the whole block though, since if your file stores one ID per line grades is just lists with newlines stripped:

Before

lists = files.readlines()
grades = []

for i in range(len(lists)):
    grades.append(lists[i].split(","))

After

grades = [x.strip() for x in files.readlines()]

(the above is a list comprehension)

Finally, you can loop over a list directly, instead of using an index:

Before

for i in range(len(grades)):
    # do something with grades[i]

After

for thisGrade in grades:
    # do something with thisGrade

This property controls the magnification level for the current element. The rendering effect for the element is that of a “zoom” function on a camera. Even though this property is not inherited, it still affects the rendering of child elements.

Example

 div { zoom: 200% }
 <div style=”zoom: 200%”>This is x2 text </div>

you can get easily like this first write event on element

ng-focus="myfunction(this)"

and in your js file like below

$scope.myfunction= function (msg, $event) {
    var el = event.target
    console.log(el);
}

I have used it as well.

You can use figure to create a new plot, for example, or use close after the first plot.

Try using WGET:

WGET 'http://localhost/index.php?a=1&b=2&c=3'

Run these commands:

sudo apt-get update
sudo apt-get install build-essential libssl-dev
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash
source ~/.profile
nvm ls-remote
nvm install v9.10.1
nvm use v9.10.1
node -v

Otherwise, you have function alpha in package scales in which you can directly input your vector of colors (even if they are factors as in your example):

library(scales)
cols <- cut(z, 6, labels = c("pink", "red", "yellow", "blue", "green", "purple"))
plot(x, y, main= "Fragment recruitment plot - FR-HIT", 
     ylab = "Percent identity", xlab = "Base pair position", 
     col = alpha(cols, 0.4), pch=16) 
# For an alpha of 0.4, i. e. an opacity of 40%.

I did like David Brown said but I got the following exception.

$exception {"There are multiple root elements. Line , position ."} System.Xml.XmlException

One solution would be to modify the XML file with a root element but that is not always necessary and for an XML stream it might not be possible either. My solution below:

var path = Path.GetFullPath(Path.Combine(Environment.CurrentDirectory, @"..\..\App_Data"));
var directoryInfo = new DirectoryInfo(path);
var fileInfos = directoryInfo.GetFiles("*.xml");

foreach (var fileInfo in fileInfos)
{
    XmlDocument doc = new XmlDocument();
    XmlReaderSettings settings = new XmlReaderSettings();
    settings.ConformanceLevel = ConformanceLevel.Fragment;

    using (XmlReader reader = XmlReader.Create(fileInfo.FullName, settings))
    {
        while (reader.Read())
        {
            if (reader.NodeType == XmlNodeType.Element)
            {
                var node = doc.ReadNode(reader);
                string json = JsonConvert.SerializeXmlNode(node);
            }
        }
    }
}

Example XML that generates the error:

<parent>
    <child>
        Text
    </child>
</parent>
<parent>
    <child>
        <grandchild>
            Text
        </grandchild>
        <grandchild>
            Text
        </grandchild>
    </child>
    <child>
        Text
    </child>
</parent>

below is an generic example

    //base class
    class A {
        
        // The virtual method
        protected virtualStuff1?():void;
    
        public Stuff2(){
            //Calling overridden child method by parent if implemented
            this.virtualStuff1 && this.virtualStuff1();
            alert("Baseclass Stuff2");
        }
    }
    
    //class B implementing virtual method
    class B extends A{
        
        // overriding virtual method
        public virtualStuff1()
        {
            alert("Class B virtualStuff1");
        }
    }
    
    //Class C not implementing virtual method
    class C extends A{
     
    }
    
    var b1 = new B();
    var c1= new C();
    b1.Stuff2();
    b1.virtualStuff1();
    c1.Stuff2();

You could try something like this (as shown here: Select a Directory with a JFileChooser):

import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.util.*;


public class DemoJFileChooser extends JPanel
   implements ActionListener {
   JButton go;

   JFileChooser chooser;
   String choosertitle;

  public DemoJFileChooser() {
    go = new JButton("Do it");
    go.addActionListener(this);
    add(go);
   }

  public void actionPerformed(ActionEvent e) {            
    chooser = new JFileChooser(); 
    chooser.setCurrentDirectory(new java.io.File("."));
    chooser.setDialogTitle(choosertitle);
    chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
    //
    // disable the "All files" option.
    //
    chooser.setAcceptAllFileFilterUsed(false);
    //    
    if (chooser.showOpenDialog(this) == JFileChooser.APPROVE_OPTION) { 
      System.out.println("getCurrentDirectory(): " 
         +  chooser.getCurrentDirectory());
      System.out.println("getSelectedFile() : " 
         +  chooser.getSelectedFile());
      }
    else {
      System.out.println("No Selection ");
      }
     }

  public Dimension getPreferredSize(){
    return new Dimension(200, 200);
    }

  public static void main(String s[]) {
    JFrame frame = new JFrame("");
    DemoJFileChooser panel = new DemoJFileChooser();
    frame.addWindowListener(
      new WindowAdapter() {
        public void windowClosing(WindowEvent e) {
          System.exit(0);
          }
        }
      );
    frame.getContentPane().add(panel,"Center");
    frame.setSize(panel.getPreferredSize());
    frame.setVisible(true);
    }
}

For print session data you do not need to use print_r() function every time .

If you use it then it will be non-readable format.Data will be looks very dirty.

But if you use my function all you have to do is to use p()-Funtion and pass data into it. //create new file into application/cms_helper.php and load helper cms into //autoload or on controller

/*Copy Code for p function from here and paste into cms_helper.php in application/helpers folder */

   //@parram $data-array,$d-if true then die by default it is false
   //@author Your name

    function p($data,$d = false){

          echo "<pre>"; 
             print_r($data);
          echo "</pre>"; 

        if($d == TRUE){
             die();
          } 
      }

Just remember to load cms_helper into your project or controller using $this->load->helper('cms'); use bellow code into your controller or model it will works just GREAT.

 p($this->session->all_userdata()); // it will apply pre to your sesison data and other array as  well

I'd like to add a "pure pathlib" approach:

from pathlib import Path
from typing import Union

def del_dir(target: Union[Path, str], only_if_empty: bool = False):
    """
    Delete a given directory and its subdirectories.

    :param target: The directory to delete
    :param only_if_empty: Raise RuntimeError if any file is found in the tree
    """
    target = Path(target).expanduser()
    assert target.is_dir()
    for p in sorted(target.glob('**/*'), reverse=True):
        if not p.exists():
            continue
        p.chmod(0o666)
        if p.is_dir():
            p.rmdir()
        else:
            if only_if_empty:
                raise RuntimeError(f'{p.parent} is not empty!')
            p.unlink()
    target.rmdir()

This relies on the fact that Path is orderable, and longer paths will always sort after shorter paths, just like str. Therefore, directories will come before files. If we reverse the sort, files will then come before their respective containers, so we can simply unlink/rmdir them one by one with one pass.

Benefits:

• It's NOT relying on external binaries: everything uses Python's batteries-included modules (Python >= 3.6)
  • Which means that it does not need to repeatedly start a new subprocess to do unlinking
• It's quite fast & simple; you don't have to implement your own recursion
• It's cross-platform (at least, that's what pathlib promises in Python 3.6; no operation above stated to not run on Windows)
• If needed, one can do a very granular logging, e.g., log each deletion as it happens.

Some definitions

• A shade is produced by "darkening" a hue or "adding black"
• A tint is produced by "ligthening" a hue or "adding white"

Creating a tint or a shade

Depending on your Color Model, there are different methods to create a darker (shaded) or lighter (tinted) color:

• RGB:

  • To shade:

    newR = currentR * (1 - shade_factor)
    newG = currentG * (1 - shade_factor)
    newB = currentB * (1 - shade_factor)
    

  • To tint:

    newR = currentR + (255 - currentR) * tint_factor
    newG = currentG + (255 - currentG) * tint_factor
    newB = currentB + (255 - currentB) * tint_factor
    

  • More generally, the color resulting in layering a color RGB(currentR,currentG,currentB) with a color RGBA(aR,aG,aB,alpha) is:

    newR = currentR + (aR - currentR) * alpha
    newG = currentG + (aG - currentG) * alpha
    newB = currentB + (aB - currentB) * alpha
    

  where (aR,aG,aB) = black = (0,0,0) for shading, and (aR,aG,aB) = white = (255,255,255) for tinting

• HSV or HSB:

  • To shade: lower the Value / Brightness or increase the Saturation
  • To tint: lower the Saturation or increase the Value / Brightness
• HSL:
  • To shade: lower the Lightness
  • To tint: increase the Lightness

There exists formulas to convert from one color model to another. As per your initial question, if you are in RGB and want to use the HSV model to shade for example, you can just convert to HSV, do the shading and convert back to RGB. Formula to convert are not trivial but can be found on the internet. Depending on your language, it might also be available as a core function :

• RGB to HSV color in javascript?
• Convert RGB value to HSV

Comparing the models

• RGB has the advantage of being really simple to implement, but:
  • you can only shade or tint your color relatively
  • you have no idea if your color is already tinted or shaded
• HSV or HSB is kind of complex because you need to play with two parameters to get what you want (Saturation & Value / Brightness)
• HSL is the best from my point of view:
  • supported by CSS3 (for webapp)
  • simple and accurate:
    • 50% means an unaltered Hue
    • >50% means the Hue is lighter (tint)
    • <50% means the Hue is darker (shade)
  • given a color you can determine if it is already tinted or shaded
  • you can tint or shade a color relatively or absolutely (by just replacing the Lightness part)

• If you want to learn more about this subject: Wiki: Colors Model
• For more information on what those models are: Wikipedia: HSL and HSV

Switch to your local branch

> git checkout configUpdate

Merge remote master to your branch

> git rebase master configUpdate

In case you have any conflicts, correct them and for each conflicted file do the command

> git add [path_to_file/conflicted_file] (e.g. git add app/assets/javascripts/test.js)

Continue rebase

> git rebase --continue

Add id's to both inputs, id="first" and id="second"

//trigger second button
$("#second").click()

Edit (2020.12.28): GitHub change default master branch to main branch since October 2020. See https://github.com/github/renaming

Update March 2013

Git 1.8.2 added the possibility to track branches.

"git submodule" started learning a new mode to integrate with the tip of the remote branch (as opposed to integrating with the commit recorded in the superproject's gitlink).

# add submodule to track master branch
git submodule add -b master [URL to Git repo];

# update your submodule
git submodule update --remote 

If you had a submodule already present you now wish would track a branch, see "how to make an existing submodule track a branch".

Also see Vogella's tutorial on submodules for general information on submodules.

Note:

git submodule add -b . [URL to Git repo];
                    ^^^

See git submodule man page:

A special value of . is used to indicate that the name of the branch in the submodule should be the same name as the current branch in the current repository.

See commit b928922727d6691a3bdc28160f93f25712c565f6:

submodule add: If --branch is given, record it in .gitmodules

This allows you to easily record a submodule.<name>.branch option in .gitmodules when you add a new submodule. With this patch,

$ git submodule add -b <branch> <repository> [<path>]
$ git config -f .gitmodules submodule.<path>.branch <branch>

reduces to

$ git submodule add -b <branch> <repository> [<path>]

This means that future calls to

$ git submodule update --remote ...

will get updates from the same branch that you used to initialize the submodule, which is usually what you want.

Signed-off-by: W. Trevor King [email protected]

Original answer (February 2012):

A submodule is a single commit referenced by a parent repo.
Since it is a Git repo on its own, the "history of all commits" is accessible through a git log within that submodule.

So for a parent to track automatically the latest commit of a given branch of a submodule, it would need to:

• cd in the submodule
• git fetch/pull to make sure it has the latest commits on the right branch
• cd back in the parent repo
• add and commit in order to record the new commit of the submodule.

gitslave (that you already looked at) seems to be the best fit, including for the commit operation.

It is a little annoying to make changes to the submodule due to the requirement to check out onto the correct submodule branch, make the change, commit, and then go into the superproject and commit the commit (or at least record the new location of the submodule).

Other alternatives are detailed here.

Yeah, as others have said, there's no convenient 'DELETE FROM my_table ... CASCADE' (or equivalent). To delete non-cascading foreign key-protected child records and their referenced ancestors, your options include:

• Perform all the deletions explicitly, one query at a time, starting with child tables (though this won't fly if you've got circular references); or
• Perform all the deletions explicitly in a single (potentially massive) query; or
• Assuming your non-cascading foreign key constraints were created as 'ON DELETE NO ACTION DEFERRABLE', perform all the deletions explicitly in a single transaction; or
• Temporarily drop the 'no action' and 'restrict' foreign key constraints in the graph, recreate them as CASCADE, delete the offending ancestors, drop the foreign key constraints again, and finally recreate them as they were originally (thus temporarily weakening the integrity of your data); or
• Something probably equally fun.

It's on purpose that circumventing foreign key constraints isn't made convenient, I assume; but I do understand why in particular circumstances you'd want to do it. If it's something you'll be doing with some frequency, and if you're willing to flout the wisdom of DBAs everywhere, you may want to automate it with a procedure.

I came here a few months ago looking for an answer to the "CASCADE DELETE just once" question (originally asked over a decade ago!). I got some mileage out of Joe Love's clever solution (and Thomas C. G. de Vilhena's variant), but in the end my use case had particular requirements (handling of intra-table circular references, for one) that forced me to take a different approach. That approach ultimately became recursively_delete (PG 10.10).

I've been using recursively_delete in production for a while, now, and finally feel (warily) confident enough to make it available to others who might wind up here looking for ideas. As with Joe Love's solution, it allows you to delete entire graphs of data as if all foreign key constraints in your database were momentarily set to CASCADE, but offers a couple additional features:

• Provides an ASCII preview of the deletion target and its graph of dependents.
• Performs deletion in a single query using recursive CTEs.
• Handles circular dependencies, intra- and inter-table.
• Handles composite keys.
• Skips 'set default' and 'set null' constraints.

The answer posted to this question as an example taken from Microsoft's MSDN is nice however it doesn't directly demonstrate where the error comes from if it doesn't come from the TRY Block. I prefer this example with a very minor update to the RAISERROR Message within the CATCH Block stating that the error is from the CATCH Block. I demonstrate this in the gif as well.

BEGIN TRY
    /* RAISERROR with severity 11-19 will cause execution
     |  to jump to the CATCH block.
    */
    RAISERROR ('Error raised in TRY block.', -- Message text.
               5, -- Severity. /* Severity Levels Less Than 11 do not jump to the CATCH block */
               1 -- State.
               );
END TRY

BEGIN CATCH
    DECLARE @ErrorMessage  NVARCHAR(4000);
    DECLARE @ErrorSeverity INT;
    DECLARE @ErrorState    INT;

    SELECT 
        @ErrorMessage  = ERROR_MESSAGE(),
        @ErrorSeverity = ERROR_SEVERITY(),
        @ErrorState    = ERROR_STATE();

    /* Use RAISERROR inside the CATCH block to return error
     | information about the original error that caused
     | execution to jump to the CATCH block
    */
    RAISERROR ('Caught Error in Catch', --@ErrorMessage, /* Message text */
               @ErrorSeverity,                           /* Severity     */
               @ErrorState                               /* State        */
               );
END CATCH;

I realize that I is kinda late, but still better late than never. I was having similar problem recently. I used XMLWriter to subsequently update XML file and was receiving the same errors. I found the clean solution for this:

The XMLWriter uses underlying FileStream to access the modified file. Problem is that when you call XMLWriter.Close() method, the underlying stream doesn't get closed and is locking the file. What you need to do is to instantiate your XMLWriter with settings and specify that you need that underlying stream closed.

Example:

XMLWriterSettings settings = new Settings();
settings.CloseOutput = true;
XMLWriter writer = new XMLWriter(filepath, settings);

Hope it helps.

Swift 3

If you add a tag to your view you can remove a specific view.

for v in (view?.subviews)!
{
    if v.tag == 321
    {
         v.removeFromSuperview()
    }
 }

This like your css code:

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

The variable name you're looking for is ansible_ssh_private_key_file.

You should set it at 'vars' level:

• in the inventory file:

  myHost ansible_ssh_private_key_file=~/.ssh/mykey1.pem
  myOtherHost ansible_ssh_private_key_file=~/.ssh/mykey2.pem
  

• in the host_vars:

  # hosts_vars/myHost.yml
  ansible_ssh_private_key_file: ~/.ssh/mykey1.pem
  
  # hosts_vars/myOtherHost.yml
  ansible_ssh_private_key_file: ~/.ssh/mykey2.pem
  

• in a group_vars file if you use the same key for a group of hosts

• in the vars section of your play:

  - hosts: myHost
    remote_user: ubuntu
    vars_files:
      - vars.yml
    vars:
      ansible_ssh_private_key_file: "{{ key1 }}"
    tasks:
      - name: Echo a hello message
        command: echo hello
  

Inventory documentation

@last_run_time is a 9.4. User-Defined Variables and last_run_time datetime one 13.6.4.1. Local Variable DECLARE Syntax, are different variables.

Try: SELECT last_run_time;

UPDATE

Example:

/* CODE FOR DEMONSTRATION PURPOSES */
DELIMITER $$

CREATE PROCEDURE `sp_test`()
BEGIN
    DECLARE current_procedure_name CHAR(60) DEFAULT 'accounts_general';
    DECLARE last_run_time DATETIME DEFAULT NULL;
    DECLARE current_run_time DATETIME DEFAULT NOW();

    -- Define the last run time
    SET last_run_time := (SELECT MAX(runtime) FROM dynamo.runtimes WHERE procedure_name = current_procedure_name);

    -- if there is no last run time found then use yesterday as starting point
    IF(last_run_time IS NULL) THEN
        SET last_run_time := DATE_SUB(NOW(), INTERVAL 1 DAY);
    END IF;

    SELECT last_run_time;

    -- Insert variables in table2
    INSERT INTO table2 (col0, col1, col2) VALUES (current_procedure_name, last_run_time, current_run_time);
END$$

DELIMITER ;

In order to use torchsummary type:

from torchsummary import summary

Install it first if you don't have it.

pip install torchsummary 

And then you can try it, but note from some reason it is not working unless I set model to cuda alexnet.cuda:

from torchsummary import summary
help(summary)
import torchvision.models as models
alexnet = models.alexnet(pretrained=False)
alexnet.cuda()
summary(alexnet, (3, 224, 224))
print(alexnet)

The summary must take the input size and batch size is set to -1 meaning any batch size we provide.

If we set summary(alexnet, (3, 224, 224), 32) this means use the bs=32.

summary(model, input_size, batch_size=-1, device='cuda')

Out:

Help on function summary in module torchsummary.torchsummary:

summary(model, input_size, batch_size=-1, device='cuda')

----------------------------------------------------------------
        Layer (type)               Output Shape         Param #
================================================================
            Conv2d-1           [32, 64, 55, 55]          23,296
              ReLU-2           [32, 64, 55, 55]               0
         MaxPool2d-3           [32, 64, 27, 27]               0
            Conv2d-4          [32, 192, 27, 27]         307,392
              ReLU-5          [32, 192, 27, 27]               0
         MaxPool2d-6          [32, 192, 13, 13]               0
            Conv2d-7          [32, 384, 13, 13]         663,936
              ReLU-8          [32, 384, 13, 13]               0
            Conv2d-9          [32, 256, 13, 13]         884,992
             ReLU-10          [32, 256, 13, 13]               0
           Conv2d-11          [32, 256, 13, 13]         590,080
             ReLU-12          [32, 256, 13, 13]               0
        MaxPool2d-13            [32, 256, 6, 6]               0
AdaptiveAvgPool2d-14            [32, 256, 6, 6]               0
          Dropout-15                 [32, 9216]               0
           Linear-16                 [32, 4096]      37,752,832
             ReLU-17                 [32, 4096]               0
          Dropout-18                 [32, 4096]               0
           Linear-19                 [32, 4096]      16,781,312
             ReLU-20                 [32, 4096]               0
           Linear-21                 [32, 1000]       4,097,000
================================================================
Total params: 61,100,840
Trainable params: 61,100,840
Non-trainable params: 0
----------------------------------------------------------------
Input size (MB): 18.38
Forward/backward pass size (MB): 268.12
Params size (MB): 233.08
Estimated Total Size (MB): 519.58
----------------------------------------------------------------
AlexNet(
  (features): Sequential(
    (0): Conv2d(3, 64, kernel_size=(11, 11), stride=(4, 4), padding=(2, 2))
    (1): ReLU(inplace)
    (2): MaxPool2d(kernel_size=3, stride=2, padding=0, dilation=1, ceil_mode=False)
    (3): Conv2d(64, 192, kernel_size=(5, 5), stride=(1, 1), padding=(2, 2))
    (4): ReLU(inplace)
    (5): MaxPool2d(kernel_size=3, stride=2, padding=0, dilation=1, ceil_mode=False)
    (6): Conv2d(192, 384, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1))
    (7): ReLU(inplace)
    (8): Conv2d(384, 256, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1))
    (9): ReLU(inplace)
    (10): Conv2d(256, 256, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1))
    (11): ReLU(inplace)
    (12): MaxPool2d(kernel_size=3, stride=2, padding=0, dilation=1, ceil_mode=False)
  )
  (avgpool): AdaptiveAvgPool2d(output_size=(6, 6))
  (classifier): Sequential(
    (0): Dropout(p=0.5)
    (1): Linear(in_features=9216, out_features=4096, bias=True)
    (2): ReLU(inplace)
    (3): Dropout(p=0.5)
    (4): Linear(in_features=4096, out_features=4096, bias=True)
    (5): ReLU(inplace)
    (6): Linear(in_features=4096, out_features=1000, bias=True)
  )
)

If you know about how many you want on a page, you could always do this. It will start a new page after every 20th item.

.row-item:nth-child(20n) {
    page-break-after: always;
    page-break-inside: avoid;
}

When to use dt accessor

A common source of confusion revolves around when to use .year and when to use .dt.year.

The former is an attribute for pd.DatetimeIndex objects; the latter for pd.Series objects. Consider this dataframe:

df = pd.DataFrame({'Dates': pd.to_datetime(['2018-01-01', '2018-10-20', '2018-12-25'])},
                  index=pd.to_datetime(['2000-01-01', '2000-01-02', '2000-01-03']))

The definition of the series and index look similar, but the pd.DataFrame constructor converts them to different types:

type(df.index)     # pandas.tseries.index.DatetimeIndex
type(df['Dates'])  # pandas.core.series.Series

The DatetimeIndex object has a direct year attribute, while the Series object must use the dt accessor. Similarly for month:

df.index.month               # array([1, 1, 1])
df['Dates'].dt.month.values  # array([ 1, 10, 12], dtype=int64)

A subtle but important difference worth noting is that df.index.month gives a NumPy array, while df['Dates'].dt.month gives a Pandas series. Above, we use pd.Series.values to extract the NumPy array representation.

The closest thing to renaming is deleting and then re-creating on the remote. For example:

git branch -m master master-old
git push remote :master         # delete master
git push remote master-old      # create master-old on remote

git checkout -b master some-ref # create a new local master
git push remote master          # create master on remote

However this has a lot of caveats. First, no existing checkouts will know about the rename - git does not attempt to track branch renames. If the new master doesn't exist yet, git pull will error out. If the new master has been created. the pull will attempt to merge master and master-old. So it's generally a bad idea unless you have the cooperation of everyone who has checked out the repository previously.

Note: Newer versions of git will not allow you to delete the master branch remotely by default. You can override this by setting the receive.denyDeleteCurrent configuration value to warn or ignore on the remote repository. Otherwise, if you're ready to create a new master right away, skip the git push remote :master step, and pass --force to the git push remote master step. Note that if you're not able to change the remote's configuration, you won't be able to completely delete the master branch!

This caveat only applies to the current branch (usually the master branch); any other branch can be deleted and recreated as above.

Low level system programming is a reasonable example.

IIRC, I've used unions to breakdown hardware registers into the component bits. So, you can access an 8-bit register (as it was, in the day I did this ;-) into the component bits.

(I forget the exact syntax but...) This structure would allow a control register to be accessed as a control_byte or via the individual bits. It would be important to ensure the bits map on to the correct register bits for a given endianness.

typedef union {
    unsigned char control_byte;
    struct {
        unsigned int nibble  : 4;
        unsigned int nmi     : 1;
        unsigned int enabled : 1;
        unsigned int fired   : 1;
        unsigned int control : 1;
    };
} ControlRegister;

Write this in your ViewDidLoad Method:

if ([self respondsToSelector:@selector(setEdgesForExtendedLayout:)]) {
    self.edgesForExtendedLayout=UIRectEdgeNone;
    self.extendedLayoutIncludesOpaqueBars=NO;
    self.automaticallyAdjustsScrollViewInsets=NO;
}

It fixed status bar color for me and other UI misplacements also to a extent.

Notepad++ address has changed, so many of the links above are broken. The up to date link for this question is here: https://npp-user-manual.org/docs/plugins/

Just in case the address changes again, here is what we have there today:

How to install a plugin

Install plugin manually

If the plugin you want to install is not listed in the Plugins Admin, you may still install it manually. The plugin (in the DLL form) should be placed in the plugins subfolder of the Notepad++ Install Folder, under the subfolder with the same name of plugin binary name without file extension. For example, if the plugin you want to install named myAwesomePlugin.dll, you should install it with the following path: %PROGRAMFILES(x86)%\Notepad++\plugins\myAwesomePlugin\myAwesomePlugin.dll

Once you installed the plugin, you can use (and you may configure) it via the menu “Plugins”.

Just got the same problem today. I've initially used SalmanPK solution but found out that effect differs between FF and other browsers. That's because conversion matrix works on lightness only not luminosity like filters in Chrome/IE . To my surprise I've found out that alternative and simpler solution in SVG also works in FF4+ and produces better results:

<svg xmlns="http://www.w3.org/2000/svg">
  <filter id="desaturate">
    <feColorMatrix type="saturate" values="0"/>
  </filter>
</svg>

With css:

img {
    filter: url(filters.svg#desaturate); /* Firefox 3.5+ */
    filter: gray; /* IE6-9 */
    -webkit-filter: grayscale(1); /* Google Chrome & Safari 6+ */
}

One more caveat is that IE10 doesn't support "filter: gray:" in standards compliant mode anymore, so needs compatibility mode switch in headers to work:

<meta http-equiv="X-UA-Compatible" content="IE=9" />

From Dockerfile reference:

• The ARG instruction defines a variable that users can pass at build-time to the builder with the docker build command using the --build-arg <varname>=<value> flag.

• The ENV instruction sets the environment variable <key> to the value <value>.
  The environment variables set using ENV will persist when a container is run from the resulting image.

So if you need build-time customization, ARG is your best choice.
If you need run-time customization (to run the same image with different settings), ENV is well-suited.

If I want to add let's say 20 (a random number) of extensions or any other feature that can be enable|disable

Given the number of combinations involved, using ENV to set those features at runtime is best here.

But you can combine both by:

• building an image with a specific ARG
• using that ARG as an ENV

That is, with a Dockerfile including:

ARG var
ENV var=${var}

You can then either build an image with a specific var value at build-time (docker build --build-arg var=xxx), or run a container with a specific runtime value (docker run -e var=yyy)

In case you dont need the message body in html, turn it off:

message.IsBodyHtml = false;

then use e.g:

message.Body = "First line" + Environment.NewLine + 
               "Second line";

but if you need to have it in html for some reason, use the html-tag:

message.Body = "First line <br /> Second line";

Write Thread.sleep(1000); it will make the thread sleep for 1000ms

This is how I've done it.

#copyright {_x000D_
 float: left;_x000D_
 padding-bottom: 10px;_x000D_
 padding-top: 10px;_x000D_
 text-align: center;_x000D_
 bottom: 0px;_x000D_
 width: 100%;_x000D_
}

  <div id="copyright">_x000D_
  Copyright 2018 &copy; Steven Clough_x000D_
  </div>

The following example shows commit parents as well:

git log --graph --all \
--format='%C(cyan dim) %p %Cred %h %C(white dim) %s %Cgreen(%cr)%C(cyan dim) <%an>%C(bold yellow)%d%Creset'

Correct ways to use Date : https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Date

Also, the following piece of code shows how, with a single definition of the function "Animal", it can be a) called directly and b) instantiated by treating it as a constructor function

function Animal(){
    this.abc = 1;
    return 1234; 
}

var x = new Animal();
var y = Animal();

console.log(x); //prints object containing property abc set to value 1
console.log(y); // prints 1234

I find the above answers really lengthy, so to summarize:

The mysqli extension has a number of benefits, the key enhancements over the mysql extension being:

• Object-oriented interface
• Support for Prepared Statements
• Support for Multiple Statements
• Support for Transactions
• Enhanced debugging capabilities
• Embedded server support

Source: MySQLi overview

As explained in the above answers, the alternatives to mysql are mysqli and PDO (PHP Data Objects).

• API supports server-side Prepared Statements: Supported by MYSQLi and PDO
• API supports client-side Prepared Statements: Supported only by PDO
• API supports Stored Procedures: Both MySQLi and PDO
• API supports Multiple Statements and all MySQL 4.1+ functionality - Supported by MySQLi and mostly also by PDO

Both MySQLi and PDO were introduced in PHP 5.0, whereas MySQL was introduced prior to PHP 3.0. A point to note is that MySQL is included in PHP5.x though deprecated in later versions.

 public class Main extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        EditText et = (EditText) findViewById(R.id.et);
        EditText et_city = (EditText) findViewById(R.id.et_city);
        // Set the default text of second EditText widget
        et_city.setText("USA");
 }
}

@msb gives a safe solution.

I met this problem when I did import tensorflow as tf in conda environment in CentOS 6.5 which only has glibc-2.12.

ImportError: /lib64/libc.so.6: version `GLIBC_2.16' not found (required by /home/

I want to supply some details:

First install glibc to your home directory:

mkdir ~/glibc-install; cd ~/glibc-install
wget http://ftp.gnu.org/gnu/glibc/glibc-2.17.tar.gz
tar -zxvf glibc-2.17.tar.gz
cd glibc-2.17
mkdir build
cd build
../configure --prefix=/home/myself/opt/glibc-2.17  # <-- where you install new glibc
make -j<number of CPU Cores>  # You can find your <number of CPU Cores> by using **nproc** command
make install

Second, follow the same way to install patchelf;

Third, patch your Python:

[myself@nfkd ~]$ patchelf --set-interpreter /home/myself/opt/glibc-2.17/lib/ld-linux-x86-64.so.2 --set-rpath /home/myself/opt/glibc-2.17/lib/ /home/myself/miniconda3/envs/tensorflow/bin/python

as mentioned by @msb

Now I can use tensorflow-2.0 alpha in CentOS 6.5.

ref: https://serverkurma.com/linux/how-to-update-glibc-newer-version-on-centos-6-x/

I found a way to do it with plain old HTML and JavaScript/jQuery that degrades gracefully. Tested in IE7-10, Safari, Chrome, and FF:

HTML for download link:

<p>Thanks for downloading! If your download doesn't start shortly, 
<a id="downloadLink" href="...yourpdf.pdf" target="_blank" 
type="application/octet-stream" download="yourpdf.pdf">click here</a>.</p>

jQuery (pure JavaScript code would be more verbose) that simulates clicking on link after a small delay:

var delay = 3000;
window.setTimeout(function(){$('#downloadLink')[0].click();},delay);

To make this more robust you could add HTML5 feature detection and if it's not there then use window.open() to open a new window with the file.

Just in case you are looking for an alternate way and the environment you use is Windows, Microsoft's Network Monitor 3.3 is a good choice. It has the process name column. You easily add it to a filter using the context menu and apply the filter.. As usual the GUI is very intuitive...

Using Partitions in Hive table is highly recommended for below reason -

• Insert into Hive table should be faster ( as it uses multiple threads to write data to partitions )
• Query from Hive table should be efficient with low latency.

Example :-

Assume that Input File (100 GB) is loaded into temp-hive-table and it contains bank data from across different geographies.

Hive table without Partition

Insert into Hive table Select * from temp-hive-table

/hive-table-path/part-00000-1  (part size ~ hdfs block size)
/hive-table-path/part-00000-2
....
/hive-table-path/part-00000-n

Problem with this approach is - It will scan whole data for any query you run on this table. Response time will be high compare to other approaches where partitioning and Bucketing are used.

Hive table with Partition

Insert into Hive table partition(country) Select * from temp-hive-table

/hive-table-path/country=US/part-00000-1       (file size ~ 10 GB)
/hive-table-path/country=Canada/part-00000-2   (file size ~ 20 GB)
....
/hive-table-path/country=UK/part-00000-n       (file size ~ 5 GB)

Pros - Here one can access data faster when it comes to querying data for specific geography transactions. Cons - Inserting/querying data can further be improved by splitting data within each partition. See Bucketing option below.

Hive table with Partition and Bucketing

Note: Create hive table ..... with "CLUSTERED BY(Partiton_Column) into 5 buckets

Insert into Hive table partition(country) Select * from temp-hive-table

/hive-table-path/country=US/part-00000-1       (file size ~ 2 GB)
/hive-table-path/country=US/part-00000-2       (file size ~ 2 GB)
/hive-table-path/country=US/part-00000-3       (file size ~ 2 GB)
/hive-table-path/country=US/part-00000-4       (file size ~ 2 GB)
/hive-table-path/country=US/part-00000-5       (file size ~ 2 GB)

/hive-table-path/country=Canada/part-00000-1   (file size ~ 4 GB)
/hive-table-path/country=Canada/part-00000-2   (file size ~ 4 GB)
/hive-table-path/country=Canada/part-00000-3   (file size ~ 4 GB)
/hive-table-path/country=Canada/part-00000-4   (file size ~ 4 GB)
/hive-table-path/country=Canada/part-00000-5   (file size ~ 4 GB)

....
/hive-table-path/country=UK/part-00000-1       (file size ~ 1 GB)
/hive-table-path/country=UK/part-00000-2       (file size ~ 1 GB)
/hive-table-path/country=UK/part-00000-3       (file size ~ 1 GB)
/hive-table-path/country=UK/part-00000-4       (file size ~ 1 GB)
/hive-table-path/country=UK/part-00000-5       (file size ~ 1 GB)

Pros - Faster Insert. Faster Query.

Cons - Bucketing will creating more files. There could be issue with many small files in some specific cases

Hope this will help !!

The best way to Load JSON Data into Dictionary is You can user the inbuilt json loader.

Below is the sample snippet that can be used.

import json
f = open("data.json")
data = json.load(f))
f.close()
type(data)
print(data[<keyFromTheJsonFile>])

NODE USERS (REACT,EXPRESS) FOLLOW THESE STEPS

1. npm install base-64 --save
2. import { encode } from "base-64";

3.  const response = await fetch(URL, {
     method: 'post',
     headers: new Headers({
       'Authorization': 'Basic ' + encode(username + ":" + password),
       'Content-Type': 'application/json'
     }),
     body: JSON.stringify({
       "PassengerMobile": "xxxxxxxxxxxx",
       "Password": "xxxxxxx"
     })
   });
   const posts = await response.json();
   

4. Don't forget to define this whole function as async

I'd like to expand on Leor's suggestion for anyone confused on how to compute the nearest location and actually provide a working solution:

I'm using markers in a markers array e.g. var markers = [];.

Then let's have our position as something like var location = new google.maps.LatLng(51.99, -0.74);

Then we simply reduce our markers against the location we have like so:

markers.reduce(function (prev, curr) {

    var cpos = google.maps.geometry.spherical.computeDistanceBetween(location.position, curr.position);
    var ppos = google.maps.geometry.spherical.computeDistanceBetween(location.position, prev.position);

    return cpos < ppos ? curr : prev;

}).position

What pops out is your closest marker LatLng object.

A .mat-file is a compressed binary file. It is not possible to open it with a text editor (except you have a special plugin as Dennis Jaheruddin says). Otherwise you will have to convert it into a text file (csv for example) with a script. This could be done by python for example: Read .mat files in Python.

Not able to understand your actual problem but your case statement is incorrect

CASE 
WHEN 
TABLE3.COL3 IS NULL
THEN TABLE2.COL3
ELSE
TABLE3.COL3
END 
AS
COL4

Default values to an interface are not possible because interfaces only exists at compile time.

Alternative solution:

You could use a factory method for this which returns an object which implements the XI interface.

Example:

class AnotherType {}

interface IX {
    a: string,
    b: any,
    c: AnotherType | null
}

function makeIX (): IX {
    return {
    a: 'abc',
    b: null,
    c: null
    }
}

const x = makeIX();

x.a = 'xyz';
x.b = 123;
x.c = new AnotherType();

The only thing I changed with regard to your example is made the property c both AnotherType | null. Which will be necessary to not have any compiler errors (This error was also present in your example were you initialized null to property c).

In C if you implement count line it will never fail. Yes you can get one extra line if there is stray "ENTER KEY" generally at the end of the file.

File might look some thing like this:

"hello 1
"Hello 2

"

Code below

#include <stdio.h>
#include <stdlib.h>
#define FILE_NAME "file1.txt"

int main() {

    FILE *fd = NULL;
    int cnt, ch;

    fd = fopen(FILE_NAME,"r");
    if (fd == NULL) {
            perror(FILE_NAME);
            exit(-1);
    }

    while(EOF != (ch = fgetc(fd))) {
    /*
     * int fgetc(FILE *) returns unsigned char cast to int
     * Because it has to return EOF or error also.
     */
            if (ch == '\n')
                    ++cnt;
    }

    printf("cnt line in %s is %d\n", FILE_NAME, cnt);

    fclose(fd);
    return 0;
}

You can delete a specific kafka topic (example: test) from zookeeper shell command (zookeeper-shell.sh). Use the below command to delete the topic

rmr {path of the topic}

example:

rmr /brokers/topics/test