Programs & Examples On #Requestvalidationmode

In my case the site that I'm connecting to has upgraded to TLS 1.2. As a result I had to install .net 4.5.2 on my web server in order to support it.

While you could try these settings in config file

<system.web>
    <httpRuntime requestPathInvalidCharacters="" requestValidationMode="2.0" />
    <pages validateRequest="false" />
</system.web>

I would avoid using characters like '&' in URL path replacing them with underscores.

If anyone is still wondering, on the newer versions of windows you can use powershell:

powershell.exe -command "& {$pshost = Get-Host;$pswindow = $pshost.UI.RawUI;$newsize = $pswindow.BufferSize;$newsize.height = 150;$pswindow.buffersize = $newsize;}"

If you want to easily view the contents of objects while debugging, install a tool like Firebug and use console.log:

console.log(product);

If you want to view the properties of the object itself, don't alert the object, but its properties:

alert(product.ProductName);
alert(product.UnitPrice);
// etc... (or combine them)

As said, if you really want to boost your JavaScript debugging, use Firefox with the Firebug addon. You will wonder how you ever debugged your code before.

The best solution is the attribute selector in CSS (input[type="text"]) as the others suggested.

But if you have to support Internet Explorer 6, you cannot use it (QuirksMode). Well, only if you have to and also are willing to support it.

In this case your only option seems to be to define classes on input elements.

<input type="text" class="input-box" ... />
<input type="submit" class="button" ... />
...

and target them with a class selector:

input.input-box, textarea { background: cyan; }

Use of pointer before character array

Normally, Character array is used to store single elements in it i.e 1 byte each

eg:

char a[]={'a','b','c'};

we can't store multiple value in it.

by using pointer before the character array we can store the multi dimensional array elements in the array

i.e.

char *a[]={"one","two","three"};
printf("%s\n%s\n%s",a[0],a[1],a[2]);

Short and sweet:

def remove_prefix(text, prefix):
    return text[text.startswith(prefix) and len(prefix):]

You're looking for is called an IDENTITY column:

create table student (
   sid integer not null GENERATED ALWAYS AS IDENTITY (START WITH 1 INCREMENT BY 1)
  ,sname varchar(30)
  ,PRIMARY KEY (sid)
);

A sequence is another option for doing this, but you need to determine which one is proper for your particular situation. Read this for more information comparing sequences to identity columns.

https://github.com/FortAwesome/react-fontawesome

install fontawesome & react-fontawesome

$ npm i --save @fortawesome/fontawesome
$ npm i --save @fortawesome/react-fontawesome
$ npm i --save @fortawesome/fontawesome-free-solid
$ npm i --save @fortawesome/fontawesome-free-regular
$ npm i --save @fortawesome/fontawesome-svg-core

then in your component

import React, { Component } from 'react';
import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
import { faCheckSquare, faCoffee } from '@fortawesome/fontawesome-free-solid'
import './App.css';

class App extends Component {
  render() {
    return (
      <div className="App">
        <h1>
          <FontAwesomeIcon icon={faCoffee} />
        </h1>
      </div>
    );
  }
}

export default App;

To convert a string to json and the sting is like json. {"phonetype":"N95","cat":"WP"}

String Data=response.getEntity().getText().toString(); // reading the string value 
JSONObject json = (JSONObject) new JSONParser().parse(Data);
String x=(String) json.get("phonetype");
System.out.println("Check Data"+x);
String y=(String) json.get("cat");
System.out.println("Check Data"+y);

From the manual:

If the database server successfully prepares the statement, PDO::prepare() returns a PDOStatement object. If the database server cannot successfully prepare the statement, PDO::prepare() returns FALSE or emits PDOException (depending on error handling).

The prepare statement likely caused an error because the db would be unable to prepare the statement. Try testing for an error immediately after you prepare your query and before you execute it.

$qry = '
    INSERT INTO non-existant-table (id, score) 
    SELECT id, 40 
    FROM another-non-existant-table
    WHERE description LIKE "%:search_string%"
    AND available = "yes"
    ON DUPLICATE KEY UPDATE score = score + 40
';
$sth = $this->pdo->prepare($qry);
print_r($this->pdo->errorInfo());

You could write a directive for this, which simply assigns the (jqLite) element to the scope using an attribute-given name.

Here is the directive:

app.directive("ngScopeElement", function () {
  var directiveDefinitionObject = {

    restrict: "A",

    compile: function compile(tElement, tAttrs, transclude) {
      return {
          pre: function preLink(scope, iElement, iAttrs, controller) {
            scope[iAttrs.ngScopeElement] = iElement;
          }
        };
    }
  };

  return directiveDefinitionObject;
});

Usage:

app.directive("myDirective", function() {
    return {
        template: '<div><ul ng-scope-element="list"><li ng-repeat="item in items"></ul></div>',
        link: function(scope, element, attrs) {
            scope.list[0] // scope.list is the jqlite element, 
                          // scope.list[0] is the native dom element
        }
    }
});

Some remarks:

• Due to the compile and link order for nested directives you can only access scope.list from myDirectives postLink-Function, which you are very likely using anyway
• ngScopeElement uses a preLink-function, so that directives nested within the element having ng-scope-element can already access scope.list
• not sure how this behaves performance-wise

For LXDE/Lubuntu

1. connect to your instance (local forwarding port 5901)

ssh -L 5901:localhost:5901 -i "xxx.pem" [email protected]

2. Install packages

sudo apt update && sudo apt upgrade
sudo apt-get install xorg lxde vnc4server lubuntu-desktop

3. Create /etc/lightdm/lightdm.conf

sudo nano /etc/lightdm/lightdm.conf

4. Copy and paste the following into the lightdm.conf and save

[SeatDefaults]
allow-guest=false
user-session=LXDE
#user-session=Lubuntu

5. setup vncserver (you will be asked to create a password for the vncserver)

vncserver
sudo echo "lxpanel & /usr/bin/lxsession -s LXDE &" >> ~/.vnc/xstartup

6. Restart your instance and reconnect

sudo reboot
ssh -L 5901:localhost:5901 -i "xxx.pem" [email protected]

7. Start vncserver

vncserver -geometry 1280x800

8. In your Remote Desktop Client (e.g. Remmina) set Server to localhost:5901 and protocol to VNC

You can use the synchronizedCollection/List method in java.util.Collection to get a thread-safe collection from a non-thread-safe one.

One method:

System.AppDomain.CurrentDomain.BaseDirectory

Another way to do it would be:

System.IO.Path.GetDirectoryName(System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName)

URL-encoding variables using only AngularJS services

With AngularJS 1.4 and up, two services can handle the process of url-encoding data for POST requests, eliminating the need to manipulate the data with transformRequest or using external dependencies like jQuery:

1. $httpParamSerializerJQLike - a serializer inspired by jQuery's .param() (recommended)

2. $httpParamSerializer - a serializer used by Angular itself for GET requests

Example usage

$http({
  url: 'some/api/endpoint',
  method: 'POST',
  data: $httpParamSerializerJQLike($scope.appForm.data), // Make sure to inject the service you choose to the controller
  headers: {
    'Content-Type': 'application/x-www-form-urlencoded' // Note the appropriate header
  }
}).then(function(response) { /* do something here */ });

See a more verbose Plunker demo

How are $httpParamSerializerJQLike and $httpParamSerializer different

In general, it seems $httpParamSerializer uses less "traditional" url-encoding format than $httpParamSerializerJQLike when it comes to complex data structures.

For example (ignoring percent encoding of brackets):

• Encoding an array

{sites:['google', 'Facebook']} // Object with array property

sites[]=google&sites[]=facebook // Result with $httpParamSerializerJQLike

sites=google&sites=facebook // Result with $httpParamSerializer

• Encoding an object

{address: {city: 'LA', country: 'USA'}} // Object with object property

address[city]=LA&address[country]=USA // Result with $httpParamSerializerJQLike

address={"city": "LA", country: "USA"} // Result with $httpParamSerializer

Associative Arrays in JavaScript don't really work the same as they do in other languages. for each statements are complicated (because they enumerate inherited prototype properties). You could declare properties on an object/associative array as Pointy mentioned, but really for this sort of thing you should use an array with the push method:

jsArr = []; 

for (var i = 1; i <= 10; i++) { 
    jsArr.push('example ' + 1); 
} 

Just don't forget that indexed arrays are zero-based so the first element will be jsArr[0], not jsArr[1].

Use GNU parted and print free command:

root@sandbox:~# parted
GNU Parted 2.3
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print free
Model: VMware Virtual disk (scsi)
Disk /dev/sda: 64.4GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    Type      File system  Flags
        32.3kB  1049kB  1016kB            Free Space
 1      1049kB  256MB   255MB   primary   ext2         boot
        256MB   257MB   1048kB            Free Space
 2      257MB   64.4GB  64.2GB  extended
 5      257MB   64.4GB  64.2GB  logical                lvm
        64.4GB  64.4GB  1049kB            Free Space

Another example : Input list

error_list = ['[br]', '[ex]', 'Something']
words = ['how', 'much[ex]', 'is[br]', 'the', 'fish[br]', 'noSomething', 'really']

The desired output would be

words = ['how', 'much', 'is', 'the', 'fish', 'no', 'really']

Code :

[n[0][0] if len(n[0]) else n[1] for n in [[[w.replace(e,"") for e in error_list if e in w],w] for w in words]] 

Try:

ArrayListname.get(index);

Where index is the position in the index and ArrayListname is the name of the Arraylist as in your case is mainList.

If you are using express you need to allow serving of static content by adding something like: var server = express(); server.use(express.static('./public')); // where public is the app root folder, with the fonts contained therein, at any level, i.e. public/fonts or public/dist/fonts... // If you are using connect, google for a similar configuration.

You didn't use FROM expression for a table

SELECT DISTINCT Description, Date as treatmentDate
**FROM <A TABLE>**
WHERE doothey.Patient P, doothey.Account A, doothey.AccountLine AL, doothey.Item.I
AND P.PatientID = A.PatientID
AND A.AccountNo = AL.AccountNo
AND AL.ItemNo = I.ItemNo
AND (p.FamilyName = 'Stange' AND p.GivenName = 'Jessie');

Maybe following :

double roundTwoDecimals(double d) { 
      DecimalFormat twoDForm = new DecimalFormat("#.##"); 
      return Double.valueOf(twoDForm.format(d));
}  

Use <!-- [if lt IE 9] > exact this code for IE9.The spaces are very Important.

You have to give elevation prop to View

<View elevation={5} style={styles.container}>
   <Text>Hello World !</Text>
 </View>

styles can be added like this:

 const styles = StyleSheet.create({

     container:{
        padding:20,
        backgroundColor:'#d9d9d9',
        shadowColor: "#000000",
        shadowOpacity: 0.8,
        shadowRadius: 2,
        shadowOffset: {
          height: 1,
          width: 1
        }
       },
   })

The dispatch_async(dispatch_get_main_queue()) method above is not guaranteed to work. I'm seeing non-deterministic behavior with it, in which sometimes the system has completed the layoutSubviews and the cell rendering before the completion block, and sometimes after.

Here's a solution that works 100% for me, on iOS 10. It requires the ability to instantiate the UITableView or UICollectionView as a custom subclass. Here's the UICollectionView solution, but it's exactly the same for UITableView:

CustomCollectionView.h:

#import <UIKit/UIKit.h>

@interface CustomCollectionView: UICollectionView

- (void)reloadDataWithCompletion:(void (^)(void))completionBlock;

@end

CustomCollectionView.m:

#import "CustomCollectionView.h"

@interface CustomCollectionView ()

@property (nonatomic, copy) void (^reloadDataCompletionBlock)(void);

@end

@implementation CustomCollectionView

- (void)reloadDataWithCompletion:(void (^)(void))completionBlock
{
    self.reloadDataCompletionBlock = completionBlock;
    [self reloadData];
}

- (void)layoutSubviews
{
    [super layoutSubviews];

    if (self.reloadDataCompletionBlock) {
        self.reloadDataCompletionBlock();
        self.reloadDataCompletionBlock = nil;
    }
}

@end

Example usage:

[self.collectionView reloadDataWithCompletion:^{
    // reloadData is guaranteed to have completed
}];

See here for a Swift version of this answer

To change the default port of 8080. All you need to do:

1. Goto Jenkins folder present in C:\Program Files (x86)
2. Open a notepad or text pad and run them as administrator and then try opening the jenkins.xml file present in the jenkins folder.
3. Change the port number as below: <arguments>-Xrs -Xmx256m -Dhudson.lifecycle=hudson.lifecycle.WindowsServiceLifecycle -jar "%BASE%\jenkins.war" --httpPort=9090</arguments>
4. Click Save.

select GROUP_CONCAT(stat SEPARATOR ' ') from (select concat('KILL ',id,';') as stat from information_schema.processlist) as stats;

Then copy and paste the result back into the terminal. Something like:

KILL 2871; KILL 2879; KILL 2874; KILL 2872; KILL 2866;

while not condition1 or not condition2 or val == -1:

But there was nothing wrong with your original of using an if inside of a while True.

I have experienced the same error when trying to build the message below with jQuery. The circular reference happens when reviewerName was being mistakenly assigned to msg.detail.reviewerName. JQuery's .val() fixed the issue, see last line.

var reviewerName = $('reviewerName'); // <input type="text" id="taskName" />;
var msg = {"type":"A", "detail":{"managerReview":true} };
msg.detail.reviewerName = reviewerName; // Error
msg.detail.reviewerName = reviewerName.val(); // Fixed

You need the modal in your HTML. When the delete button is clicked it popup the modal. It's also important to prevent the click of that button from submitting the form. When the confirmation is clicked the form will submit.

   _x000D_
_x000D_
 $('button[name="remove_levels"]').on('click', function(e) {_x000D_
      var $form = $(this).closest('form');_x000D_
      e.preventDefault();_x000D_
      $('#confirm').modal({_x000D_
          backdrop: 'static',_x000D_
          keyboard: false_x000D_
      })_x000D_
      .on('click', '#delete', function(e) {_x000D_
          $form.trigger('submit');_x000D_
        });_x000D_
      $("#cancel").on('click',function(e){_x000D_
       e.preventDefault();_x000D_
       $('#confirm').modal.model('hide');_x000D_
      });_x000D_
    });

<link href="http://getbootstrap.com/2.3.2/assets/css/bootstrap.css" rel="stylesheet" />_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<script src="http://getbootstrap.com/2.3.2/assets/js/bootstrap.js"></script>_x000D_
<form action="#" method="POST">_x000D_
  <button class='btn btn-danger btn-xs' type="submit" name="remove_levels" value="delete"><span class="fa fa-times"></span> delete</button>_x000D_
</form>_x000D_
_x000D_
<div id="confirm" class="modal">_x000D_
  <div class="modal-body">_x000D_
    Are you sure?_x000D_
  </div>_x000D_
  <div class="modal-footer">_x000D_
    <button type="button" data-dismiss="modal" class="btn btn-primary" id="delete">Delete</button>_x000D_
    <button type="button" data-dismiss="modal" class="btn">Cancel</button>_x000D_
  </div>_x000D_
</div>

This powershell example looks for all instances of the string "\foo\" in a folder and its subfolders, replaces "\foo\" with "\bar\" AND DOES NOT REWRITE files that don't contain the string "\foo\" This way you don't destroy the file last update datetime stamps where the string was not found:

Get-ChildItem  -Path C:\YOUR_ROOT_PATH\*.* -recurse 
 | ForEach {If (Get-Content $_.FullName | Select-String -Pattern '\\foo\\') 
           {(Get-Content $_ | ForEach {$_ -replace '\\foo\\', '\bar\'}) | Set-Content $_ }
           }

My preffered way to compare nullable fields is: NULLIF(nullablefield, :ParameterValue) IS NULL AND NULLIF(:ParameterValue, nullablefield) IS NULL . This is cumbersome but is of universal use while Coalesce is impossible in some cases.

The second and inverse use of NULLIF is because "NULLIF(nullablefield, :ParameterValue) IS NULL" will always return "true" if the first parameter is null.

I created a trim.strings () function to trim leading and/or trailing whitespace as:

# Arguments:    x - character vector
#            side - side(s) on which to remove whitespace 
#                   default : "both"
#                   possible values: c("both", "leading", "trailing")

trim.strings <- function(x, side = "both") { 
    if (is.na(match(side, c("both", "leading", "trailing")))) { 
      side <- "both" 
      } 
    if (side == "leading") { 
      sub("^\\s+", "", x)
      } else {
        if (side == "trailing") {
          sub("\\s+$", "", x)
    } else gsub("^\\s+|\\s+$", "", x)
    } 
} 

For illustration,

a <- c("   ABC123 456    ", " ABC123DEF          ")

# returns string without leading and trailing whitespace
trim.strings(a)
# [1] "ABC123 456" "ABC123DEF" 

# returns string without leading whitespace
trim.strings(a, side = "leading")
# [1] "ABC123 456    "      "ABC123DEF          "

# returns string without trailing whitespace
trim.strings(a, side = "trailing")
# [1] "   ABC123 456" " ABC123DEF"   

Since this is a menu, might as well take it to the next level, and clean up the HTML, and make it more semantic by using a list element:

HTML:

  <ul id="menu">
    <li><a href="#">Bla</a></li>
    <li><a href="#">Bla</a></li>
    <li><a href="#">Bla</a></li>
  </ul>

CSS:

#menu {
  margin: 0;
}
#menu li {
  float: left;
  list-style: none;
  margin: 0;
}
#menu li a {
  display: block;
  line-height:30px;
  width:100px;
  background-color:#000;
}
#menu li a:hover {
  background-color:#F00;
}

I very recently had the some problem and just figured out how to do this. Assuming you have three classes, Primary, B, C and that B,C have a foreign key to primary

    class PrimaryForm(ModelForm):
        class Meta:
            model = Primary

    class BForm(ModelForm):
        class Meta:
            model = B
            exclude = ('primary',)

    class CForm(ModelForm):
         class Meta:
            model = C
            exclude = ('primary',)

    def generateView(request):
        if request.method == 'POST': # If the form has been submitted...
            primary_form = PrimaryForm(request.POST, prefix = "primary")
            b_form = BForm(request.POST, prefix = "b")
            c_form = CForm(request.POST, prefix = "c")
            if primary_form.is_valid() and b_form.is_valid() and c_form.is_valid(): # All validation rules pass
                    print "all validation passed"
                    primary = primary_form.save()
                    b_form.cleaned_data["primary"] = primary
                    b = b_form.save()
                    c_form.cleaned_data["primary"] = primary
                    c = c_form.save()
                    return HttpResponseRedirect("/viewer/%s/" % (primary.name))
            else:
                    print "failed"

        else:
            primary_form = PrimaryForm(prefix = "primary")
            b_form = BForm(prefix = "b")
            c_form = Form(prefix = "c")
     return render_to_response('multi_model.html', {
     'primary_form': primary_form,
     'b_form': b_form,
     'c_form': c_form,
      })

This method should allow you to do whatever validation you require, as well as generating all three objects on the same page. I have also used javascript and hidden fields to allow the generation of multiple B,C objects on the same page.

This code works fine with me

<script type="text/javascript">
$(document).ready(function(){ 
$("#select_all").change(function(){
  $(".checkbox_class").prop("checked", $(this).prop("checked"));
  });
});
</script>

you only need to add class checkbox_class to all checkbox

Easy and simple :D

You can use base_path() to get the base of your application - and then just add your public folder to that:

$path = base_path().'/public';
return File::put($path , $data)

Note: Be very careful about allowing people to upload files into your root of public_html. If they upload their own index.php file, they will take over your site.

If you are using JQuery and your select control has ID "DropList" you can remove its options doing this way:

$('#DropList option').remove();

Actually it works for me with any option list, like datalist.

Hope it helps.

library(plyr)
ddply(tbl, .(Category), summarise, sum = sum(Frequency))

Using the backtick (`) works fine for me if I put them in the following places:

$cmd="\\server\toto.exe -batch=B -param=`"sort1;parmtxt='Security ID=1234'`""

$cmd returns as:

\\server\toto.exe -batch=B -param="sort1;parmtxt='Security ID=1234'"

Is that what you were looking for?

The error PowerShell gave me referred to an unexpected token 'sort1', and that's how I determined where to put the backticks.

The @' ... '@ syntax is called a "here string" and will return exactly what is entered. You can also use them to populate variables in the following fashion:

$cmd=@'
"\\server\toto.exe -batch=B -param="sort1;parmtxt='Security ID=1234'""
'@

The opening and closing symbols must be on their own line as shown above.

If you have created multiple images dynamically than try this one:

// initialize your images array

private ImageView myImages[] = new ImageView[your_array_length];

// create programatically and add to parent view

 for (int i = 0; i < your_array_length; i++) {
                myImages[i] = new ImageView(this);
                myImages[i].setId(i + 1);
                myImages[i].setBackgroundResource(your_array[i]);
                RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
                        frontWidth[i], frontHeight[i]);
                ((MarginLayoutParams) params).setMargins(frontX_axis[i],
                        frontY_axis[i], 0, 0);
                myImages[i].setAdjustViewBounds(true);
                myImages[i].setLayoutParams(params);

                if (getIntent() != null && i != your_array,length) {
                    final int j = i;
                    myImages[j].getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
                        public boolean onPreDraw() {
                            myImages[j].getViewTreeObserver().removeOnPreDrawListener(this);
                    finalHeight = myImages[j].getMeasuredHeight();
                        finalWidth = myImages[j].getMeasuredWidth();
                    your_textview.setText("Height: " + finalHeight + " Width: " + finalWidth);
                            return true;
                        }
                    });
                }
                your_parent_layout.addView(myImages[i], params);
            }

// That's it. Happy Coding.

You can do something like this, very simple and efficient solution: What i did was actually use a parameter instead of basic placeholder, created a SqlParameter object and used another existing execution method. For e.g in your scenario:

string sql = "INSERT INTO mssqltable (varbinarycolumn) VALUES (@img)";
SqlParameter param = new SqlParameter("img", arraytoinsert); //where img is your parameter name in the query
ExecuteStoreCommand(sql, param);

This should work like a charm, provided you have an open sql connection established.

Following on from Jakub's answer. git archive produces a tar or zip archive, so you need to pipe the output through tar to get the file content:

git archive --remote=git://git.foo.com/project.git HEAD:path/to/directory filename | tar -x

Will save a copy of 'filename' from the HEAD of the remote repository in the current directory.

The :path/to/directory part is optional. If excluded, the fetched file will be saved to <current working dir>/path/to/directory/filename

In addition, if you want to enable use of git archive --remote on Git repositories hosted by git-daemon, you need to enable the daemon.uploadarch config option. See https://kernel.org/pub/software/scm/git/docs/git-daemon.html

You can use segments to add the bars in base graphics. Here epsilon controls the line across the top and bottom of the line.

plot (x, y, ylim=c(0, 6))
epsilon = 0.02
for(i in 1:5) {
    up = y[i] + sd[i]
    low = y[i] - sd[i]
    segments(x[i],low , x[i], up)
    segments(x[i]-epsilon, up , x[i]+epsilon, up)
    segments(x[i]-epsilon, low , x[i]+epsilon, low)
}

As @thelatemail points out, I should really have used vectorised function calls:

segments(x, y-sd,x, y+sd)
epsilon = 0.02
segments(x-epsilon,y-sd,x+epsilon,y-sd)
segments(x-epsilon,y+sd,x+epsilon,y+sd)

The error Object expected is raised because Jquery is not loaded. This happens because of browser security (usually IE) which does not allow you executing external javascript source code. You can correct this problem by:

• 1: Changing browser security level to allow executing external javascript code. You can find how to do this here

OR

• 2: Copy-paste the jquery source code into your web page so that it won't be considered as an external script.

I prefer the first solution.

With hooks in React 16.8 onward, it's easy to do this with useEffect

I've created a CodeSandbox to demonstrate this.

useEffect(() => {
  // code to be run when state variables in
  // dependency array changes
}, [stateVariables, thatShould, triggerChange])

Basically, useEffect synchronises with state changes and this can be used to render the canvas

import React, { useState, useEffect, useRef } from "react";
import { Stage, Shape } from "@createjs/easeljs";
import "./styles.css";

export default function App() {
  const [rows, setRows] = useState(10);
  const [columns, setColumns] = useState(10);
  let stage = useRef()

  useEffect(() => {
    stage.current = new Stage("canvas");
    var rectangles = [];
    var rectangle;
    //Rows
    for (var x = 0; x < rows; x++) {
      // Columns
      for (var y = 0; y < columns; y++) {
        var color = "Green";
        rectangle = new Shape();
        rectangle.graphics.beginFill(color);
        rectangle.graphics.drawRect(0, 0, 32, 44);
        rectangle.x = y * 33;
        rectangle.y = x * 45;

        stage.current.addChild(rectangle);

        var id = rectangle.x + "_" + rectangle.y;
        rectangles[id] = rectangle;
      }
    }
    stage.current.update();
  }, [rows, columns]);

  return (
    <div>
      <div className="canvas-wrapper">
        <canvas id="canvas" width="400" height="300"></canvas>
        <p>Rows: {rows}</p>
        <p>Columns: {columns}</p>
      </div>
      <div className="array-form">
        <form>
          <label>Number of Rows</label>
          <select
            id="numRows"
            value={rows}
            onChange={(e) => setRows(e.target.value)}
          >
            {getOptions()}
          </select>
          <label>Number of Columns</label>
          <select
            id="numCols"
            value={columns}
            onChange={(e) => setColumns(e.target.value)}
          >
            {getOptions()}
          </select>
        </form>
      </div>
    </div>
  );
}

const getOptions = () => {
  const options = [1, 2, 5, 10, 12, 15, 20];
  return (
    <>
      {options.map((option) => (
        <option key={option} value={option}>
          {option}
        </option>
      ))}
    </>
  );
};

It seems that the compiler is better in optimizing a switch-statement than an if-statement.

The compiler doesn't know if the order of evaluating the if-statements is important to you, and can't perform any optimizations there. You could be calling methods in the if-statements, influencing variables. With the switch-statement it knows that all clauses can be evaluated at the same time and can put them in whatever order is most efficient.

Here's a small comparison:
http://www.blackwasp.co.uk/SpeedTestIfElseSwitch.aspx

You can try beardless (it's inspired by weld/plates):

For example:

{ post:
  { title: "Next generation templating: Start shaving!"
  , text: "TL;DR You should really check out beardless!"
  , comments:
    [ {text: "Hey cool!"}
    , {text: "Really gotta check that out..."}  ]
  }
}

Your template:

<h1 data-template="post.title"></h1>
<p data-template="post.text"></p>
<div>
  <div data-template="post.comments" class="comment">
    <p data-template="post.comments.text"></p>
  </div>
</div>

Output:

<h1>Next generation templating: Start shaving!</h1>
<p>TL;DR You should really check out beardless!</p>
<div>
  <div class="comment">
    <p>Hey cool!</p>
  </div>
  <div class="comment">
    <p>Really gotta check that out...</p>
  </div>
</div>

According to nginx documentation

there is no syntax for NOT matching a regular expression. Instead, match the target regular expression and assign an empty block, then use location / to match anything else

So you could define something like

location ~ (dir1|file2\.php) { 
    # empty
}

location / {
    rewrite ^/(.*) http://example.com/$1 permanent; 
}

If your are using android studio go to file >> project structure on the left pane press on SDK location . you will find the path where your sdk is located

There are at least three very good reasons for using the Visitor Pattern:

1. Reduce proliferation of code which is only slightly different when data structures change.

2. Apply the same computation to several data structures, without changing the code which implements the computation.

3. Add information to legacy libraries without changing the legacy code.

Please have a look at an article I've written about this.

table { 
    table-layout:fixed; width:200px;
}
table tr {
    height: 20px;
}

10x10

Almost 5 years later, I think my answer can reduce a little bit the hard work of many people.

Update an element in the DOM with the HTML from the one from the ajax call can be achieved that way

$('#submitform').click(function() {
     $.ajax({
     url: "getinfo.asp",
     data: {
         txtsearch: $('#appendedInputButton').val()
     },
     type: "GET",
     dataType : "html",
     success: function (data){
         $('#showresults').html($('#showresults',data).html());
         // similar to $(data).find('#showresults')
     },
});

or with replaceWith()

// codes

success: function (data){
   $('#showresults').replaceWith($('#showresults',data));
},

I too can use only Java 6. I used @EvgeniyDorofeev's thread scanner implementation. In my code, after a process finishes, I have to immediately execute two other processes that each compare the redirected output (a diff-based unit test to ensure stdout and stderr are the same as the blessed ones).

The scanner threads don't finish soon enough, even if I waitFor() the process to complete. To make the code work correctly, I have to make sure the threads are joined after the process finishes.

public static int runRedirect (String[] args, String stdout_redirect_to, String stderr_redirect_to) throws IOException, InterruptedException {
    ProcessBuilder b = new ProcessBuilder().command(args);
    Process p = b.start();
    Thread ot = null;
    PrintStream out = null;
    if (stdout_redirect_to != null) {
        out = new PrintStream(new BufferedOutputStream(new FileOutputStream(stdout_redirect_to)));
        ot = inheritIO(p.getInputStream(), out);
        ot.start();
    }
    Thread et = null;
    PrintStream err = null;
    if (stderr_redirect_to != null) {
        err = new PrintStream(new BufferedOutputStream(new FileOutputStream(stderr_redirect_to)));
        et = inheritIO(p.getErrorStream(), err);
        et.start();
    }
    p.waitFor();    // ensure the process finishes before proceeding
    if (ot != null)
        ot.join();  // ensure the thread finishes before proceeding
    if (et != null)
        et.join();  // ensure the thread finishes before proceeding
    int rc = p.exitValue();
    return rc;
}

private static Thread inheritIO (final InputStream src, final PrintStream dest) {
    return new Thread(new Runnable() {
        public void run() {
            Scanner sc = new Scanner(src);
            while (sc.hasNextLine())
                dest.println(sc.nextLine());
            dest.flush();
        }
    });
}

For my case, I had an anchor with click event like

<a href="" onclick="somemethod($index, hour, $event)">

Inside click event I had some network call, Chrome cancelling the request. The anchor has href with "" means, it reloads the page and the same time it has click event with network call that gets cancelled. Whenever i replace the href with void like

<a href="javascript:void(0)" onclick="somemethod($index, hour, $event)">

The problem went away!

Using Bootstrap

Remove form-control-file Class from input field to avoid unwanted horizontal scroll bar

Try this!!

$('#upload').change(function() {_x000D_
    var filename = $('#upload').val();_x000D_
    if (filename.substring(3,11) == 'fakepath') {_x000D_
        filename = filename.substring(12);_x000D_
    } // For Remove fakepath_x000D_
    $("label[for='file_name'] b").html(filename);_x000D_
    $("label[for='file_default']").text('Selected File: ');_x000D_
    if (filename == "") {_x000D_
        $("label[for='file_default']").text('No File Choosen');_x000D_
    }_x000D_
});

.custom_file {_x000D_
  margin: auto;_x000D_
  opacity: 0;_x000D_
  position: absolute;_x000D_
  z-index: -1;_x000D_
}

<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div class="form-group">_x000D_
   <label for="upload" class="btn btn-sm btn-primary">Upload Image</label>_x000D_
    <input type="file" class="text-center form-control-file custom_file" id="upload" name="user_image">_x000D_
    <label for="file_default">No File Choosen </label>_x000D_
    <label for="file_name"><b></b></label>_x000D_
</div>

This is not so much an answer to your original question as to one of the queries you had in the body of your question.

A little preamble, so that my naming doesn't seem strange:

import matplotlib
from matplotlib import rc
from matplotlib.figure import Figure
ax = self.figure.add_subplot( 111 )

As has been mentioned you can use ticklabel_format to specify that matplotlib should use scientific notation for large or small values:

ax.ticklabel_format(style='sci',scilimits=(-3,4),axis='both')

You can affect the way that this is displayed using the flags in rcParams (from matplotlib import rcParams) or by setting them directly. I haven't found a more elegant way of changing between '1e' and 'x10^' scientific notation than:

ax.xaxis.major.formatter._useMathText = True

This should give you the more Matlab-esc, and indeed arguably better appearance. I think the following should do the same:

rc('text', usetex=True)

go to your angular project folder and open the command promt an type "ng g component header" where header is the new component that you want to create.As default the header component will be created inside the app component.You can create components inside a component .For example if you want to create a component inside he header that we made above then type"ng g component header/menu". This will create a menu component inside the header component

This was happening for me because I had fromArrayName instead of formArrayName somewhere

are you using jquery and prototype on the same page by any chance?

If so, use jquery noConflict mode, otherwise you are overwriting prototypes $ function.

noConflict mode is activated by doing the following:

<script src="jquery.js"></script>
<script>jQuery.noConflict();</script>

Note: by doing this, the dollar sign variable no longer represents the jQuery object. To keep from rewriting all your jQuery code, you can use this little trick to create a dollar sign scope for jQuery:

jQuery(function ($) {
    // The dollar sign will equal jQuery in this scope
});

// Out here, the dollar sign still equals Prototype

I add this problem to read some subprocess.Popen stdout. Here is my non blocking read solution:

import fcntl

def non_block_read(output):
    fd = output.fileno()
    fl = fcntl.fcntl(fd, fcntl.F_GETFL)
    fcntl.fcntl(fd, fcntl.F_SETFL, fl | os.O_NONBLOCK)
    try:
        return output.read()
    except:
        return ""

# Use example
from subprocess import *
sb = Popen("echo test && sleep 1000", shell=True, stdout=PIPE)
sb.kill()

# sb.stdout.read() # <-- This will block
non_block_read(sb.stdout)
'test\n'

Why its printing 0,1,2...?

Because those are indexes of the items in array, and index always starts from 0 to array.length-1.

To print the item count instead of index, use index+1. Like this:

<li v-for="(catalog, index) in catalogs">this index : {{index + 1}}</li>

And to show the total count use array.length, Like this:

<p>Total Count: {{ catalogs.length }}</p>

As per DOC:

v-for also supports an optional second argument (not first) for the index of the current item.

$mail -> CharSet = "UTF-8";
$mail = new PHPMailer();

line $mail -> CharSet = "UTF-8"; must be after $mail = new PHPMailer(); and with no spaces!

try this

$mail = new PHPMailer();
$mail->CharSet = "UTF-8";

Scanner scanner = new Scanner(System.in);
String part = scanner.nextLine();
String line = scanner.nextLine();

String temp = "\\b" + part +"|"+ part + "\\b";
Pattern pattern = Pattern.compile(temp.toLowerCase());
Matcher matcher = pattern.matcher(line.toLowerCase());

System.out.println(matcher.find() ? "YES":"NO");

If you need to determine if any of the words of this text start or end with the sequence. you can use this regex \bsubstring|substring\b anythingsubstring substringanything anythingsubstringanything

I struggled with the same question since i had submit button in the middle of the from which redirected submit to another page, like so:

<button type="submit" onclick="this.form.action = '#another_page'">More</button>

When user pressed enter key, this button was clicked instead of another submit button.

So i did some primitive tests by creating a from with multiple submit buttons and different visibility options and onclick event alerting which button was clicked: https://jsfiddle.net/aqfy51om/1/

Browsers and OS'es i used for testing:

WINDOWS

• Google Chrome 43 (c'mon google :D)
• Mozilla Firefox 38
• Internet Explorer 11
• Opera 30.0

OSX

• Google Chrome 43
• Safari 7.1.6

Most of these browsers clicked very first button despite the visibility options applied exept IE and Safari which clicked the third button, which is "visible" inside "hidden" container:

<div style="width: 0; height: 0; overflow: hidden;">
    <button type="submit" class="btn btn-default" onclick="alert('Hidden submit button #3 was clicked');">Hidden submit button #3</button>
</div>

So my suggestion, which i'm going to use myself, is:

If you form has multiple submit buttons with different meaning, then include submit button with default action at the beginning of the form which is either:

1. Fully visible
2. Wrapped in a container with style="width: 0; height: 0; overflow: hidden;"

EDIT Another option might be to offset the button(still at the beginning of the from) style="position: absolute; left: -9999px; top: -9999px;", just tried it in IE - worked , but i have no idea what else it can screw up, for example printing..

For a string of length 1 you can simply perform isdigit() or isalpha()

If your string length is greater than 1, you can make a function something like..

def isinteger(a):
    try:
        int(a)
        return True
    except ValueError:
        return False

If you have array like:

$runners = ["1","2","3","4"];

And if you want to covert them into integers and keep within array, following should do the job:

$newArray = array_map( create_function('$value', 'return (int)$value;'),
            $runners);

Honestly, I was in the same boat as you. I've got a C++ Library that I wanted to connect to a graphing utility. I ended up using Boost Python and matplotlib. It was the best one that I could find.

As a side note: I was also wary of licensing. matplotlib and the boost libraries can be integrated into proprietary applications.

Here's an example of the code that I used:

#include <boost/python.hpp>
#include <pygtk/pygtk.h>
#include <gtkmm.h>

using namespace boost::python;
using namespace std;

// This is called in the idle loop.
bool update(object *axes, object *canvas) {
    static object random_integers = object(handle<>(PyImport_ImportModule("numpy.random"))).attr("random_integers");
    axes->attr("scatter")(random_integers(0,1000,1000), random_integers(0,1000,1000));
    axes->attr("set_xlim")(0,1000);
    axes->attr("set_ylim")(0,1000);
    canvas->attr("draw")();
    return true;
}

int main() {
    try {
        // Python startup code
        Py_Initialize();
        PyRun_SimpleString("import signal");
        PyRun_SimpleString("signal.signal(signal.SIGINT, signal.SIG_DFL)");

        // Normal Gtk startup code
        Gtk::Main kit(0,0);

        // Get the python Figure and FigureCanvas types.
        object Figure = object(handle<>(PyImport_ImportModule("matplotlib.figure"))).attr("Figure");
        object FigureCanvas = object(handle<>(PyImport_ImportModule("matplotlib.backends.backend_gtkagg"))).attr("FigureCanvasGTKAgg");

        // Instantiate a canvas
        object figure = Figure();
        object canvas = FigureCanvas(figure);
        object axes = figure.attr("add_subplot")(111);
        axes.attr("hold")(false);

        // Create our window.
        Gtk::Window window;
        window.set_title("Engineering Sample");
        window.set_default_size(1000, 600);

        // Grab the Gtk::DrawingArea from the canvas.
        Gtk::DrawingArea *plot = Glib::wrap(GTK_DRAWING_AREA(pygobject_get(canvas.ptr())));

        // Add the plot to the window.
        window.add(*plot);
        window.show_all();

        // On the idle loop, we'll call update(axes, canvas).
        Glib::signal_idle().connect(sigc::bind(&update, &axes, &canvas));

        // And start the Gtk event loop.
        Gtk::Main::run(window);

    } catch( error_already_set ) {
        PyErr_Print();
    }
}

It says “Android library projects cannot be launched” because Android library projects cannot be launched. That simple. You cannot run a library. If you want to test a library, create an Android project that uses the library, and execute it.

It's an infamous problem: .equals() for arrays is badly broken, just don't use it, ever.

That said, it's not "broken" as in "someone has done it in a really wrong way" — it's just doing what's defined and not what's usually expected. So for purists: it's perfectly fine, and that also means, don't use it, ever.

Now the expected behaviour for equals is to compare data. The default behaviour is to compare the identity, as Object does not have any data (for purists: yes it has, but it's not the point); assumption is, if you need equals in subclasses, you'll implement it. In arrays, there's no implementation for you, so you're not supposed to use it.

So the difference is, Arrays.equals(array1, array2) works as you would expect (i.e. compares content), array1.equals(array2) falls back to Object.equals implementation, which in turn compares identity, and thus better replaced by == (for purists: yes I know about null).

Problem is, even Arrays.equals(array1, array2) will bite you hard if elements of array do not implement equals properly. It's a very naive statement, I know, but there's a very important less-than-obvious case: consider a 2D array.

2D array in Java is an array of arrays, and arrays' equals is broken (or useless if you prefer), so Arrays.equals(array1, array2) will not work as you expect on 2D arrays.

Hope that helps.

This will do the trick:

SELECT CONVERT(char(10), GetDate(),126)

Use ContentProvider for inserting the bulk data in db. The below method used for inserting bulk data in to database. This should Improve INSERT-per-second performance of SQLite.

private SQLiteDatabase database;
database = dbHelper.getWritableDatabase();

public int bulkInsert(@NonNull Uri uri, @NonNull ContentValues[] values) {

database.beginTransaction();

for (ContentValues value : values)
 db.insert("TABLE_NAME", null, value);

database.setTransactionSuccessful();
database.endTransaction();

}

Call bulkInsert method :

App.getAppContext().getContentResolver().bulkInsert(contentUriTable,
            contentValuesArray);

Link: https://www.vogella.com/tutorials/AndroidSQLite/article.html check Using ContentProvider Section for more details

.toDate did not really work for me, So, Here is what i did :

futureStartAtDate = new Date(moment().locale("en").add(1, 'd').format("MMM DD, YYYY HH:MM"))

hope this helps

Best Firefox Addon to disable CORS as of September 2016: https://github.com/fredericlb/Force-CORS/releases

You can even configure it by Referrers (Website).

Another important difference is that the Hashtable type supports lock-free multiple readers and a single writer at the same time, while Dictionary does not.

How about something like

package main

import (
    "fmt"
    "time"
)

func schedule(what func(), delay time.Duration) chan bool {
    stop := make(chan bool)

    go func() {
        for {
            what()
            select {
            case <-time.After(delay):
            case <-stop:
                return
            }
        }
    }()

    return stop
}

func main() {
    ping := func() { fmt.Println("#") }

    stop := schedule(ping, 5*time.Millisecond)
    time.Sleep(25 * time.Millisecond)
    stop <- true
    time.Sleep(25 * time.Millisecond)

    fmt.Println("Done")
}

Playground

In the terminal just write : $ mongod --version

All you need to do is put it in a list and then add it as the children of the widget.

you can do something like this:

Widget listOfWidgets(List<String> item) {
  List<Widget> list = List<Widget>();
  for (var i = 0; i < item.length; i++) {
    list.add(Container(
        child: FittedBox(
          fit: BoxFit.fitWidth,
          child: Text(
            item[i],
          ),
        )));
  }
  return Wrap(
      spacing: 5.0, // gap between adjacent chips
      runSpacing: 2.0, // gap between lines
      children: list);
}

After that call like this

child: Row(children: <Widget>[
   listOfWidgets(itemList),
])

What about os.environ["DEBUSSY"] = '1'? Environment variables are always strings.

Use querySelector insted of getElementById();

var c = document.querySelector('#mainContent');
    c.appendChild(document.createElement('div'));

FFTW is the 'fastest fourier transform in the west', and has some Java wrappers:

http://www.fftw.org/download.html

Hope that helps!

-u no doesn't show unstaged files either. -uno works as desired and shows unstaged, but hides untracked.

Regarding WMI and Registry:

There are three WMI event classes concerning registry:

• RegistryTreeChangeEvent
• RegistryKeyChangeEvent
• RegistryValueChangeEvent

Registry Event Classes

But you need to be aware of these limitations:

• With RegistryTreeChangeEvent and RegistryKeyChangeEvent there is no way of directly telling which values or keys actually changed. To do this, you would need to save the registry state before the event and compare it to the state after the event.

• You can't use these classes with HKEY_CLASSES_ROOT or HKEY_CURRENT_USER hives. You can overcome this by creating a WMI class to represent the registry key to monitor:

Defining a Registry Class With Qualifiers

and use it with __InstanceOperationEvent derived classes.

So using WMI to monitor the Registry is possible, but less then perfect. The advantage is that it is possible to monitor the changes in 'real time'. Another advantage could be WMI permanent event subscription:

Receiving Events at All Times

a method to monitor the Registry 'at all times', ie. event if your application is not running.

I don't know if this will help, but here's the SWT FAQ question How do I use Mozilla as the Browser's underlying renderer?

Edit: Having researched this further, it sounds like this isn't possible in Eclipse 3.4, but may be slated for a later release.

We can define maximum pool size in following way:

                <pool> 
               <min-pool-size>5</min-pool-size>
                <max-pool-size>200</max-pool-size>
                <prefill>true</prefill>
                <use-strict-min>true</use-strict-min>
                <flush-strategy>IdleConnections</flush-strategy>
                </pool>

A command like the one below will show three sections: request headers, response headers and data (separated by CRLF). It avoids technical information and syntactical noise added by curl.

curl -vs www.stackoverflow.com 2>&1 | sed '/^* /d; /bytes data]$/d; s/> //; s/< //'

The command will produce the following output:

GET / HTTP/1.1
Host: www.stackoverflow.com
User-Agent: curl/7.54.0
Accept: */*

HTTP/1.1 301 Moved Permanently
Content-Type: text/html; charset=UTF-8
Location: https://stackoverflow.com/
Content-Length: 149
Accept-Ranges: bytes
Date: Wed, 16 Jan 2019 20:28:56 GMT
Via: 1.1 varnish
Connection: keep-alive
X-Served-By: cache-bma1622-BMA
X-Cache: MISS
X-Cache-Hits: 0
X-Timer: S1547670537.588756,VS0,VE105
Vary: Fastly-SSL
X-DNS-Prefetch-Control: off
Set-Cookie: prov=e4b211f7-ae13-dad3-9720-167742a5dff8; domain=.stackoverflow.com; expires=Fri, 01-Jan-2055 00:00:00 GMT; path=/; HttpOnly

<head><title>Document Moved</title></head>
<body><h1>Object Moved</h1>This document may be found <a HREF="https://stackoverflow.com/">here</a></body>

Description:

• -vs - add headers (-v) but remove progress bar (-s)
• 2>&1 - combine stdout and stderr into single stdout
• sed - edit response produced by curl using the commands below
• /^* /d - remove lines starting with '* ' (technical info)
• /bytes data]$/d - remove lines ending with 'bytes data]' (technical info)
• s/> // - remove '> ' prefix
• s/< // - remove '< ' prefix

If the original size is 100 x 100 and you want to scale it to 50 x 50, use scaledSize instead of Size.

var icon = {
    url: "../res/sit_marron.png", // url
    scaledSize: new google.maps.Size(50, 50), // scaled size
    origin: new google.maps.Point(0,0), // origin
    anchor: new google.maps.Point(0, 0) // anchor
};

var marker = new google.maps.Marker({
    position: new google.maps.LatLng(lat, lng),
    map: map,
    icon: icon
});

I think you're looking for continue

Use the matplotlib savefig function with the keyword argument transparent=True to save the image as a png file.

In [30]: x = np.linspace(0,6,31)

In [31]: y = np.exp(-0.5*x) * np.sin(x)

In [32]: plot(x, y, 'bo-')
Out[32]: [<matplotlib.lines.Line2D at 0x3f29750>]            

In [33]: savefig('demo.png', transparent=True)

Result:

Of course, that plot doesn't demonstrate the transparency. Here's a screenshot of the PNG file displayed using the ImageMagick display command. The checkerboard pattern is the background that is visible through the transparent parts of the PNG file.

There's a more appropriate way than asking the viewControllers. You can make your controller a delegate of the navigationBar that has the back button. Here's an example. In the implementation of the controller where you want to handle the press of the back button, tell it that it will implement the UINavigationBarDelegate protocol:

@interface MyViewController () <UINavigationBarDelegate>

Then somewhere in your initialization code (probably in viewDidLoad) make your controller the delegate of its navigation bar:

self.navigationController.navigationBar.delegate = self;

Finally, implement the shouldPopItem method. This method gets called right when the back button is pressed. If you have multiple controllers or navigation Items in the stack, you'll probably want to check which of those navigation items is getting popped (the item parameter), so that you only do your custom stuff when you expect to. Here's an example:

-(BOOL)navigationBar:(UINavigationBar *)navigationBar shouldPopItem:(UINavigationItem *)item
{
    NSLog(@"Back button got pressed!");
    //if you return NO, the back button press is cancelled
    return YES;
}

Take a look at the sqlcmd utility. It allows you to execute SQL from the command line.

http://msdn.microsoft.com/en-us/library/ms162773.aspx

It's all in there in the documentation, but the syntax should look something like this:

sqlcmd -U myLogin -P myPassword -S MyServerName -d MyDatabaseName 
    -Q "DROP TABLE MyTable"

The problem is certainly the this binding while rending the button with onClick handler. The solution is to use arrow function while calling action handler while rendering. Like this: onClick={ () => this.handleButtonChange(false) }

You can you with your source folder so whenever you build, those files are automatically copied to the classes directory.

Instead of using properties file, use XML file.

If the data is too small, you can even use web.xml for accessing the properties.

Please note that any of these approach will require app server restart for changes to be reflected.

Endpoint, in the OpenID authentication lingo, is the URL to which you send (POST) the authentication request.

Excerpts from Google authentication API

To get the Google OpenID endpoint, perform discovery by sending either a GET or HEAD HTTP request to https://www.google.com/accounts/o8/id. When using a GET, we recommend setting the Accept header to "application/xrds+xml". Google returns an XRDS document containing an OpenID provider endpoint URL.The endpoint address is annotated as:

<Service priority="0">
<Type>http://specs.openid.net/auth/2.0/server</Type> 
<URI>{Google's login endpoint URI}</URI> 
</Service>

Once you've acquired the Google endpoint, you can send authentication requests to it, specifying the appropriate parameters (available at the linked page). You connect to the endpoint by sending a request to the URL or by making an HTTP POST request.

To return true or false depending on whether a checkbox is checked or not, I use this in JQuery

let checkState = $("#checkboxId").is(":checked") ? "true" : "false";

Using .editorconfig to fix the tabs automagically:

root = true

[*]
charset = utf-8
end_of_line = lf
insert_final_newline = true
indent_style = space
indent_size = 4

[Makefile]
indent_style = tab

Even adding responseType, I dealt with it for days with no success. Finally I got it. Make sure that in your backend script you don't define header as -("Content-Type: application/json);

Becuase if you turn it to text but backend asks for json, it will return an error...

To just get the size of the directory, nothing more:

du --max-depth=0 ./directory

output looks like

5234232       ./directory

To auto-select the value of in select.

<div className="form-group">
    <label htmlFor="contactmethod">Contact Method</label>
    <select id="contactmethod" className="form-control"  value={this.state.contactmethod || ''} onChange={this.handleChange} name="contactmethod">
    <option value='Email'>URL</option>
    <option value='Phone'>Phone</option>
    <option value="SMS">SMS</option>
    </select>
</div>

Use the value attribute in the select tag

value={this.state.contactmethod || ''}

the solution is working for me.

Another good use for *args and **kwargs: you can define generic "catch all" functions, which is great for decorators where you return such a wrapper instead of the original function.

An example with a trivial caching decorator:

import pickle, functools
def cache(f):
  _cache = {}
  def wrapper(*args, **kwargs):
    key = pickle.dumps((args, kwargs))
    if key not in _cache:
      _cache[key] = f(*args, **kwargs) # call the wrapped function, save in cache
    return _cache[key] # read value from cache
  functools.update_wrapper(wrapper, f) # update wrapper's metadata
  return wrapper

import time
@cache
def foo(n):
  time.sleep(2)
  return n*2

foo(10) # first call with parameter 10, sleeps
foo(10) # returns immediately

You can do this simply like this

$('#image_id').click(function() {
  $("#some_id iframe").attr('src', $("#some_id iframe", parent).attr('src') + '?autoplay=1'); 
});

where image_id is your image id you are clicking and some_id is id of div in which iframe is also you can use iframe id directly.

This might work out for you depending on which language you are using:

(?<=Object Name:).*

It's a positive lookbehind assertion. More information could be found here.

It won't work with JavaScript though. In your comment I read that you're using it for logstash. If you are using GROK parsing for logstash then it would work. You can verify it yourself here:

https://grokdebug.herokuapp.com/

the following code is for making the same y axis limit on two subplots

f ,ax = plt.subplots(1,2,figsize = (30, 13),gridspec_kw={'width_ratios': [5, 1]})
df.plot(ax = ax[0], linewidth = 2.5)
ylim = [lower_limit,upper_limit]
ax[0].set_ylim(ylim)
ax[1].hist(data,normed =1, bins = num_bin, color = 'yellow' ,alpha = 1) 
ax[1].set_ylim(ylim)

just a reminder, plt.hist(range=[low, high]) the histogram auto crops the range if the specified range is larger than the max&min of the data points. So if you want to specify the y-axis range number, i prefer to use set_ylim

The cleanest way is to test for it's existence, drop it if it exists, and then recreate it. You can't embed a "create proc" statement inside an IF statement. This should do nicely:

IF OBJECT_ID('MySproc', 'P') IS NOT NULL
DROP PROC MySproc
GO

CREATE PROC MySproc
AS
BEGIN
    ...
END

I sometimes encounter the same issue. I can only answer your second bullet, because I am not as expert in R as I am with other languages. I have found that the standard for loop has some unexpected results. Say x = 0

for (i in 1:x) {
  print(i)
}

The output is

[1] 1
[1] 0

Whereas with python, for example

for i in range(x):
  print i

does nothing. The loop is not entered.

I expected that if x = 0 that in R, the loop would not be entered. However, 1:0 is a valid range of numbers. I have not yet found a good workaround besides having an if statement wrapping the for loop

I got this issue when trying to run a project targeting Framework 4.5 in VS2017. After changing it to Framework 4.6.X it got fixed by itself.

C# does not have a message box that will gather input, but you can use the Visual Basic input box instead.

If you add a reference to "Microsoft Visual Basic .NET Runtime" and then insert:

using Microsoft.VisualBasic;

You can do the following:

List<string> responses = new List<string>();
string response = "";

while(!(response = Interaction.InputBox("Please enter your information",
                                        "Window Title",
                                        "Default Text",
                                        xPosition,
                                        yPosition)).equals(""))
{
   responses.Add(response);
}

responses.ToArray();

You can also check it using jQuery.. It's quite easy:

<html>
    <head>
        <title>jQuery: Check if Textbox is empty</title>
        <script type="text/javascript" src="js/jquery_1.7.1_min.js"></script>
    </head>
    <body>
        <form name="form1" method="post" action="">
            <label for="city">City:</label>
            <input type="text" name="city" id="city">
        </form>
        <button id="check">Check</button>
        <script type="text/javascript">
             $('#check').click(function () {
                 if ($('#city').val() == '') {
                     alert('Empty!!!');
                 } else {
                     alert('Contains: ' + $('#city').val());
                 }
             });                
        </script>
    </body>
</html>

Check the media stream library by Axis which relay on Media Source extension

• https://github.com/AxisCommunications/media-stream-library-js
• https://developer.mozilla.org/en-US/docs/Web/API/Media_Source_Extensions_API

They implement a pipeline similar to Gstreamer in JS with the h264 depay in it. Note: the streaming consumed in the js is not directly rtsp but encapsulated into a ws:// by the library itself on a node.js rtsp-websocket proxy.

I know, I am already late but let me add my simple and working answer here

const query = {} //your query here
const update = {} //your update in json here
const option = {new: true} //will return updated document

const user = await User.findOneAndUpdate(query , update, option)

I think you don't have to use sub query in this scenario.You can directly left outer join the DEPRMNT table .

While using Left Outer Join ,don't use columns in the RHS table of the join in the where condition, you ll get wrong output

i think this can be as simple let as assume that you are going to pass multiple parameters to you action as you read up there actions accept only two parameters context and payload which is your data you want to pass in action so let take an example

Setting up Action

instead of

actions: {
        authenticate: ({ commit }, token, expiration) => commit('authenticate', token, expiration)
    }

do

actions: {
        authenticate: ({ commit }, {token, expiration}) => commit('authenticate', token, expiration)
    }

Calling (dispatching) Action

instead of

this.$store.dispatch({
                  type: 'authenticate',
                  token: response.body.access_token,
                  expiration: response.body.expires_in + Date.now()
              })

do

this.$store.dispatch('authenticate',{
                  token: response.body.access_token,
                  expiration: response.body.expires_in + Date.now()
              })

hope this gonna help

You can also hit Win+Shift+[n]. N being the position the app is in the taskbar. Eg if its pinned as the first app hit WIn+Shift+1 and windows will open a new instance. This works for all applications.

I agree tho all of these workarounds shouldn't be necessary. Pretty much every other app can drag tabs out as a window I can't think of anything I used that doesn't and VSCode should be implementing ubiquitous functions we expect to be there.

All you need is to split using the one of the special character of Java Ragex Engine,

and that is- WhiteSpace Character

• \d Represents a digit: [0-9]
• \D Represents a non-digit: [^0-9]
• \s Represents a whitespace character including [ \t\n\x0B\f\r]
• \S Represents a non-whitespace character as [^\s]
• \v Represents a vertical whitespace character as [\n\x0B\f\r\x85\u2028\u2029]
• \V Represents a non-vertical whitespace character as [^\v]
• \w Represents a word character as [a-zA-Z_0-9]
• \W Represents a non-word character as [^\w]

Here, the key point to remember is that the small leter character \s represents all types of white spaces including a single space [ ] , tab characters [ ] or anything similar.

So, if you'll try will something like this-

String theString = "Java<a space><a tab>Programming"
String []allParts = theString.split("\\s+");

You will get the desired output.

Some Very Useful Links:

• Split() method Best Examples
• Regexr
• split-Java 11
• RegularExpInfo
• PatternClass

Hope, this might help you the best!!!

Try and run the following command:

ALTER TABLE `investments` 
MODIFY created_at TIMESTAMP 
DEFAULT CURRENT_TIMESTAMP 
NOT NULL;

and

ALTER TABLE `investments` 
MODIFY updated_at TIMESTAMP 
DEFAULT CURRENT_TIMESTAMP 
NOT NULL;

The reason you are getting this error is because you are not setting a default value for the created_at and updated_at fields. MySQL is not accepting your command since the values for these columns cannot be null.

You can also pass arguments to getters by returning a function. This is particularly useful when you want to query an array in the store:

getters: {
  // ...
  getTodoById: (state) => (id) => {
    return state.todos.find(todo => todo.id === id)
  }
}
store.getters.getTodoById(2) // -> { id: 2, text: '...', done: false }

Note that getters accessed via methods will run each time you call them, and the result is not cached.

That is called Method-Style Access and it is documented on the Vue.js docs.

You would do it like this:

std::string prefix("--foo=");
if (!arg.compare(0, prefix.size(), prefix))
    foo_value = std::stoi(arg.substr(prefix.size()));

Looking for a lib such as Boost.ProgramOptions that does this for you is also a good idea.

If you round 8.8333333333339 to 2 decimals, the correct answer is 8.83, not 8.84. The reason you got 8.83000000001 is because 8.83 is a number that cannot be correctly reprecented in binary, and it gives you the closest one. If you want to print it without all the zeros, do as VGE says:

print "%.2f" % 8.833333333339   #(Replace number with the variable?)

Well if you are using Netbeans in Linux, then you should look for the tomcat-user.xml in

/home/Username/.netbeans/8.0/apache-tomcat-8.0.3.0_base/conf (its called Catalina Base and is often hidden)

instead of the apacahe installation directory.

open tomcat-user.xml inside that folder, uncomment the user and roles and add/replace the following line.

    <user username="tomcat" password="tomcat" roles="tomcat,admin,admin-gui,manager,manager-gui"/>

restart the server . That's all

Change the Platform of your C++ project to "x64" (or whichever platform you are targeting) instead of "Win32". This can be found in Visual Studio under Build -> Configuration Manager. Find your project in the list and change the Platform column. Don't forget to do this for all solution configurations.

Just try it this way, should work, easy! In your WHERE clause, after column name and equal to sign:- add TWO single quotes, your search value and then THREE single quotes. Close the bracket.

SELECT * FROM OPENQUERY([NameOfLinkedSERVER], 'SELECT * FROM TABLENAME where field1=''your search value''') T1 INNER JOIN MYSQLSERVER.DATABASE.DBO.TABLENAME T2 ON T1.PK = T2.PK

You can make an empty commit with git commit --allow-empty, but that will not allow you to commit an empty folder structure as git does not know or care about folders as objects themselves -- just the files they contain.

override func prepareForSegue(segue: UIStoryboardSegue?, sender: AnyObject?) {
        if(segue!.identifier){
            var name = segue!.identifier;
            if (name.compare("Load View") == 0){

            }
        }
    }

You can't compare the the identifier with == you have to use the compare() method

@aisbaa's answer works if you don't care when the environment variable was declared. If you want the environment variable, even if it has been declared inside of an exec /bin/bash session, use something like:

IFS="=" read -a out <<< $(docker exec container /bin/bash -c "env | grep ENV_VAR" 2>&1)

It's not very pretty, but it gets the job done.

To then get the value, use:

echo ${out[1]}

Make sure you use the latest version of JDK/JRE.

In my case, I had put JCE into JRE folder, but it didn't help. It happened because I was running my project from the IDE directly (using JDK).

Then I updated my JDK and JRE to the latest version (1.8.0_211) and the problem had gone.

More details: https://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8170157

Given

l1 = [a,b]
l2 = [b,a]

In Python >= 3.0

assertCountEqual(l1, l2) # True

In Python >= 2.7, the above function was named:

assertItemsEqual(l1, l2) # True

In Python < 2.7

import unittest2
assertItemsEqual(l1, l2) # True

Via six module (Any Python version)

import unittest
import six
class MyTest(unittest.TestCase):
    def test(self):
        six.assertCountEqual(self, self.l1, self.l2) # True

In order to be able to display the information in the form you would like, you need to give those specific inputs of interest names. I'd recommend you do have:

<form #f="ngForm" (ngSubmit)="onSubmit(f)"> ...
<input **name="firstName" ngModel** placeholder="Enter your first name"> ...

That depends on what the target server accepts. There is no definitive standard for this. See also a.o. Wikipedia: Query string:

While there is no definitive standard, most web frameworks allow multiple values to be associated with a single field (e.g. field1=value1&field1=value2&field2=value3).^[4][5]

Generally, when the target server uses a strong typed programming language like Java (Servlet), then you can just send them as multiple parameters with the same name. The API usually offers a dedicated method to obtain multiple parameter values as an array.

foo=value1&foo=value2&foo=value3

String[] foo = request.getParameterValues("foo"); // [value1, value2, value3]

The request.getParameter("foo") will also work on it, but it'll return only the first value.

String foo = request.getParameter("foo"); // value1

And, when the target server uses a weak typed language like PHP or RoR, then you need to suffix the parameter name with braces [] in order to trigger the language to return an array of values instead of a single value.

foo[]=value1&foo[]=value2&foo[]=value3

$foo = $_GET["foo"]; // [value1, value2, value3]
echo is_array($foo); // true

In case you still use foo=value1&foo=value2&foo=value3, then it'll return only the first value.

$foo = $_GET["foo"]; // value1
echo is_array($foo); // false

Do note that when you send foo[]=value1&foo[]=value2&foo[]=value3 to a Java Servlet, then you can still obtain them, but you'd need to use the exact parameter name including the braces.

String[] foo = request.getParameterValues("foo[]"); // [value1, value2, value3]

By the way why don't you use XML data insertion through Stored Procedure?

Here is the link to do that... Inserting Bulk Data through XML-Stored Procedure

try running:

su -c "Your command right here" -s /bin/sh username

This will run the command as username given that you have permissions to sudo as that user.

Any component added to the GridLayout will be resized to the same size as the largest component added. If you want a component to remain at its preferred size, then wrap that component in a JPanel and then the panel will be resized:

JPanel displayPanel = new JPanel(new GridLayout(4, 2)); 
JTextField titleText = new JTextField("title"); 
JPanel wrapper = new JPanel( new FlowLayout(0, 0, FlowLayout.LEADING) );
wrapper.add( titleText );
displayPanel.add(wrapper); 
//displayPanel.add(titleText); 

var list = new List<string>();
var queryable = list.AsQueryable();

Add a reference to: System.Linq

Have you tried

document.getElementById('body').style.display = "none";

instead of

document.getElementById('body').style.display = "hidden";?

For those who do not see Plugins->NPPExport,

Download Plugin Manager from this. Extract contents and place under C/ProgramFile/NP++ installation, plugins & updater folder. Restart NP++. You should be able to see Plugins->Plugin Manager then. You can download any plugin, including NPPExport and install it to see the Copy command.

None of the above solutions worked for me, I just added

window.location.href = "www.google.com"
event.preventDefault();

This worked for me.

Or try using

window.location.replace("www.google.com");

To put it all together, this is what it should look like:

In the controller:

List<Fund> fundList = db.Funds.ToList();
ViewBag.Funds = fundList;

Then in the view:

@foreach (var item in ViewBag.Funds)
{
    <span> @item.FundName </span>
}

small command-line web server on Node.js: miptleha-http

full source code (80 lines)

NOTE: As of July 2020, text-overflow: ellipsis works for <select> on Chrome

HTML is limited in what it specifies for form controls. That leaves room for operating system and browser makers to do what they think is appropriate on that platform (like the iPhone’s modal select which, when open, looks totally different from the traditional pop-up menu).

If it bugs you, you can use a customizable replacement, like Chosen, which looks distinct from the native select.

Or, file a bug against a major operating system or browser. For all we know, the way text is cut off in selects might be the result of a years-old oversight that everyone copied, and it might be time for a change.

import datetime
a = datetime.datetime.today().year

or even (as Lennart suggested)

a = datetime.datetime.now().year

or even

a = datetime.date.today().year

You need to change your code to the following:

@RestController
public class IndexController implements ErrorController{

    private static final String PATH = "/error";

    @RequestMapping(value = PATH)
    public String error() {
        return "Error handling";
    }

    @Override
    public String getErrorPath() {
        return PATH;
    }
}

Your code did not work, because Spring Boot automatically registers the BasicErrorController as a Spring Bean when you have not specified an implementation of ErrorController.

To see that fact just navigate to ErrorMvcAutoConfiguration.basicErrorController here.

Alternatively you could use a for loop as shown in the Groovy Docs:

def map = ['a':1, 'b':2, 'c':3]
for ( e in map ) {
    print "key = ${e.key}, value = ${e.value}"
}

/*
Result:
key = a, value = 1
key = b, value = 2
key = c, value = 3
*/

One benefit of using a for loop as opposed to an each closure is easier debugging, as you cannot hit a break point inside an each closure (when using Netbeans).

Here is a YouTube video that explains exactly what you're wanting to do: Save and load a Keras model

There are three different saving methods that Keras makes available. These are described in the video link above (with examples), as well as below.

First, the reason you're receiving the error is because you're calling load_model incorrectly.

To save and load the weights of the model, you would first use

model.save_weights('my_model_weights.h5')

to save the weights, as you've displayed. To load the weights, you would first need to build your model, and then call load_weights on the model, as in

model.load_weights('my_model_weights.h5')

Another saving technique is model.save(filepath). This save function saves:

• The architecture of the model, allowing to re-create the model.
• The weights of the model.
• The training configuration (loss, optimizer).
• The state of the optimizer, allowing to resume training exactly where you left off.

To load this saved model, you would use the following:

from keras.models import load_model
new_model = load_model(filepath)'

Lastly, model.to_json(), saves only the architecture of the model. To load the architecture, you would use

from keras.models import model_from_json
model = model_from_json(json_string)

Go get yourself a copy of Everyday Scripting with Ruby. It has plenty of useful tips on how to do the types of things your are wanting to do.

new_dict = {x: v for x, v in mydict.items() if x in mykeys}

add padding to the CSS class of anchor tag. If required, add padding-top, padding-bottom,... individually according to the clickable area you want. It worked for me.

array_unique(array_merge($array1,$array2), SORT_REGULAR);

http://se2.php.net/manual/en/function.array-unique.php

Thanks all. I took bits of each of your solutions and made my own.

The final working solution is:

<script type="text/javascript">
    $(document).ready(function(){
        $.ajax({
            url: '<?php bloginfo('template_url'); ?>/functions/twitter.php',
            data: "tweets=<?php echo $ct_tweets; ?>&account=<?php echo $ct_twitter; ?>",
            success: function(data) {
                $('#twitter-loader').remove();
                $('#twitter-container').html(data);
            }
        });
   });
</script>

After asking a similar question I’ve created another package which uses Pygments, and offers quite a few more options than texments. It’s called minted and is quite stable and usable.

Just to show it off, here’s a code highlighted with minted:

Add commons-lang3-3.1.jar in your application build path. Use the below code snippet to trim the String array.

String array = {" String", "Tom Selleck "," Fish "};
array = StringUtils.stripAll(array);

If you land here using jwt authentication after the PyJWT v2.0.0 release (22/12/2020), you might want to freeze your version of PyJWT to the previous release in your requirements.txt file.

PyJWT==1.7.1

A char value in C is implicitly convertible to an int. e.g, char c; ... printf("%d", c) prints the decimal ASCII value of c, and int i = c; puts the ASCII integer value of c in i. You can also explicitly convert it with (int)c. If you mean something else, such as how to convert an ASCII digit to an int, that would be c - '0', which implicitly converts c to an int and then subtracts the ASCII value of '0', namely 48 (in C, character constants such as '0' are of type int, not char, for historical reasons).

Use this command:

egrep -lRZ "\.jpg|\.png|\.gif" . \
    | xargs -0 -l sed -i -e 's/\.jpg\|\.gif\|\.png/.bmp/g'

• egrep: find matching lines using extended regular expressions

  • -l: only list matching filenames

  • -R: search recursively through all given directories

  • -Z: use \0 as record separator

  • "\.jpg|\.png|\.gif": match one of the strings ".jpg", ".gif" or ".png"

  • .: start the search in the current directory

• xargs: execute a command with the stdin as argument

  • -0: use \0 as record separator. This is important to match the -Z of egrep and to avoid being fooled by spaces and newlines in input filenames.

  • -l: use one line per command as parameter

• sed: the stream editor

  • -i: replace the input file with the output without making a backup

  • -e: use the following argument as expression

  • 's/\.jpg\|\.gif\|\.png/.bmp/g': replace all occurrences of the strings ".jpg", ".gif" or ".png" with ".bmp"

2.0 Compatible Answer: In Tensorflow 2.x (2.1), you can get the dimensions (shape) of the tensor as integer values, as shown in the Code below:

Method 1 (using tf.shape):

import tensorflow as tf
c = tf.constant([[1.0, 2.0, 3.0], [4.0, 5.0, 6.0]])
Shape = c.shape.as_list()
print(Shape)   # [2,3]

Method 2 (using tf.get_shape()):

import tensorflow as tf
c = tf.constant([[1.0, 2.0, 3.0], [4.0, 5.0, 6.0]])
Shape = c.get_shape().as_list()
print(Shape)   # [2,3]

Check out this snippet:

Private Sub openDialog()
    Dim fd As Office.FileDialog

    Set fd = Application.FileDialog(msoFileDialogFilePicker)

   With fd

      .AllowMultiSelect = False

      ' Set the title of the dialog box.
      .Title = "Please select the file."

      ' Clear out the current filters, and add our own.
      .Filters.Clear
      .Filters.Add "Excel 2003", "*.xls"
      .Filters.Add "All Files", "*.*"

      ' Show the dialog box. If the .Show method returns True, the
      ' user picked at least one file. If the .Show method returns
      ' False, the user clicked Cancel.
      If .Show = True Then
        txtFileName = .SelectedItems(1) 'replace txtFileName with your textbox

      End If
   End With
End Sub

I think this is what you are asking for.

To get the position look at the OnMouseMove event. The MouseEventArgs will give you the x an y positions...

protected override void OnMouseMove(MouseEventArgs mouseEv) 

To set the mouse position use the Cursor.Position property.

http://msdn.microsoft.com/en-us/library/system.windows.forms.cursor.position.aspx

If anyone else out there is using the WiX toolset, I discovered that my installer project had a reference to an old project that had recently been removed from the solution. Took me a while to realize since there are a number of projects in the solution I was attempting to build and the message did not indicate which project was failing to build (and clean, which was failing as well).

I wrote this method to handle UTF8 arrays and JSON problems. It works fine with array (simple and multidimensional).

/**
 * Encode array from latin1 to utf8 recursively
 * @param $dat
 * @return array|string
 */
   public static function convert_from_latin1_to_utf8_recursively($dat)
   {
      if (is_string($dat)) {
         return utf8_encode($dat);
      } elseif (is_array($dat)) {
         $ret = [];
         foreach ($dat as $i => $d) $ret[ $i ] = self::convert_from_latin1_to_utf8_recursively($d);

         return $ret;
      } elseif (is_object($dat)) {
         foreach ($dat as $i => $d) $dat->$i = self::convert_from_latin1_to_utf8_recursively($d);

         return $dat;
      } else {
         return $dat;
      }
   }
// Sample use
// Just pass your array or string and the UTF8 encode will be fixed
$data = convert_from_latin1_to_utf8_recursively($data);

Related to the response using ClientHttpInterceptor, I found a way of keeping the whole response without Buffering factories. Just store the response body input stream inside byte array using some utils method that will copy that array from body, but important, surround this method with try catch because it will break if response is empty (that is the cause of Resource Access Exception) and in catch just create empty byte array, and than just create anonymous inner class of ClientHttpResponse using that array and other parameters from the original response. Than you can return that new ClientHttpResponse object to the rest template execution chain and you can log response using body byte array that is previously stored. That way you will avoid consuming InputStream in the actual response and you can use Rest Template response as it is. Note, this may be dangerous if your's response is too big

In most modern browsers, there is a symbol primitive data type which can be used to create an enumeration. It will ensure type safety of the enum as each symbol value is guaranteed by JavaScript to be unique, i.e. Symbol() != Symbol(). For example:

const COLOR = Object.freeze({RED: Symbol(), BLUE: Symbol()});

To simplify debugging, you can add a description to enum values:

const COLOR = Object.freeze({RED: Symbol("RED"), BLUE: Symbol("BLUE")});

Plunker demo

On GitHub you can find a wrapper that simplifies the code required to initialize the enum:

const color = new Enum("RED", "BLUE")

color.RED.toString() // Symbol(RED)
color.getName(color.RED) // RED
color.size // 2
color.values() // Symbol(RED), Symbol(BLUE)
color.toString() // RED,BLUE

I would like to improve weston's and Roger Huang's answers for over API 21 Android lollipop with theme "Theme.AppCompat".

Below Android 4.4

<resources>
    <style name="AppBaseTheme" parent="Theme.AppCompat.Light">
    </style>

   <!-- Application theme. -->
   <style name="AppTheme" parent="AppBaseTheme">
       <item name="android:typeface">monospace</item>
   </style>
</resources>

Over(equal) API 5.0

<resources>
    <style name="AppBaseTheme" parent="Theme.AppCompat.Light">
    </style>

   <!-- Application theme. -->
   <style name="AppTheme" parent="AppBaseTheme">
       <item name="android:textAppearance">@style/CustomTextAppearance</item>
   </style>

   <style name="CustomTextAppearance">
       <item name="android:typeface">monospace</item>
   </style>
</resources>

And the FontsOverride util file is same as what in weston's answer. I have tested in these phones:

Nexus 5(android 5.1 Primary Android System)

ZTE V5(android 5.1 CM12.1)

XIAOMI note(android 4.4 MIUI6)

HUAWEI C8850(android 2.3.5 UNKNOWN)

Even more terse:

Hash[my_hash.map{|(k,v)| [k.to_sym,v]}]

In Notepad++, you can use the Mark tab in the Find dialogue to Bookmark all lines matching your query which can be regex or normal (wildcard).

Then use Search > Bookmark > Remove Bookmarked Lines.

Of course user351809, stringname.equalsignorecase(null) will throw NullPointerException.
See, you have a string object stringname, which follows 2 possible conditions:-

1. stringname has a some non-null string value (say "computer"):
   Your code will work fine as it takes the form
   "computer".equalsignorecase(null)
   and you get the expected response as false.
2. stringname has a null value:
   Here your code will get stuck, as
   null.equalsignorecase(null)
   However, seems good at first look and you may hope response as true,
   but, null is not an object that can execute the equalsignorecase() method.

Hence, you get the exception due to case 2.
What I suggest you is to simply use stringname == null

TestClass.methods(false) 

to get only methods that belong to that class only.

TestClass.instance_methods(false) would return the methods from your given example (since they are instance methods of TestClass).

Key differences:

C++ is a general-purpose programming language, but is developed from the originally C programming language. It was developed by Bjarne Stroustrup at Bell Labs starting in 1979. C++ was originally named C with Classes. It was renamed C++ in 1983.

Visual C++, on the other hand, is not a programming language at all. It is in fact a development environment. It is an “integrated development environment (IDE) product from Microsoft for the C, C++, and C++/CLI programming languages.” Microsoft Visual C++, also known as MSVC or VC++, is sold as part of the Microsoft Visual Studio app.

The Method Works Properly For me:

var lanopt = $(".language-option");

lanopt.on("show.bs.collapse",".collapse", function(){
   lanopt.find(".collapse.in").collapse("hide");
});

One object may contain another as a part of its attribute.

1. document contains sentences which contain words.
2. Computer system has a hard disk, ram, processor etc.

So containment need not be physical. e.g., computer system has a warranty.

A real working solution with no other dependencies than angularjs (tested with v.1.0.6)

html

<input type="file" name="file" onchange="angular.element(this).scope().uploadFile(this.files)"/>

Angularjs (1.0.6) not support ng-model on "input-file" tags so you have to do it in a "native-way" that pass the all (eventually) selected files from the user.

controller

$scope.uploadFile = function(files) {
    var fd = new FormData();
    //Take the first selected file
    fd.append("file", files[0]);

    $http.post(uploadUrl, fd, {
        withCredentials: true,
        headers: {'Content-Type': undefined },
        transformRequest: angular.identity
    }).success( ...all right!... ).error( ..damn!... );

};

The cool part is the undefined content-type and the transformRequest: angular.identity that give at the $http the ability to choose the right "content-type" and manage the boundary needed when handling multipart data.

import datetime
now = datetime.datetime.now()

print(now.year)

The above code works perfectly fine for me.

You get only the name because you return only the name return "login";. It's @RestController and this controller returns data rather than a view; because of this, you get only content that you return from method.

If you want to show view with this name you need to use Spring MVC, see this example.

Notice that the http code response status you are getting is an HTTP 404. The 404 or Not Found error message is a response code indicating that the client was able to communicate with a given server, but the server could not find what was requested.

If you have got an 403 Forbidden vs 401 Unauthorized HTTP responses then it might make a sense to review your tomcat-users.xml.

Resuming: check the manager resources and files of your server installation, some file/directory might be missing, or the path to the manager resources has been changed.

First of all, this what is written in documentation. I think it is one of your class fields, not the main one - and how you want deserialiser to construct it back w/o parameterless construction ?

I think there is a workaround to make constructor private.

Eclipse has built in JUnit functionality. Open your Run Configuration manager to create a test to run. You can also create JUnit Test Cases/Suites from New->Other.

This is my workable one. on mac OS X 10.10.4

grep -e 'this' -rl . | xargs sed -i '' 's/this/that/g'

The above ones use find will change the files that do not contain the search text (add a new line at the file end), which is verbose.

Ah yes. Welcome to Asynchronous execution.

Basically, pausing a script would cause the browser and page to become unresponsive for 3 seconds. This is horrible for web apps, and so isn't supported.

Instead, you have to think "event-based". Use setTimeout to call a function after a certain amount of time, which will continue to run the JavaScript on the page during that time.

You need to make sure the module is installed for all versions of python

You can check to see if a module is installed for python by running:

pip uninstall moduleName

If it is installed, it will ask you if you want to delete it or not. My issue was that it was installed for python, but not for python3. To check to see if a module is installed for python3, run:

python3 -m pip uninstall moduleName

After doing this, if you find that a module is not installed for one or both versions, use these two commands to install the module.

• pip install moduleName
• python3 -m pip install moduleName

This should work

if(!Directory.Exists(@"C:\MP_Upload")) {
    Directory.CreateDirectory(@"C:\MP_Upload");
}

Solution for Mac

Reason: Eclipse copies from one location to other

Solution: Paths change needed in /Applications/eclipse/Eclipse.app/Contents/MacOS/eclipse.ini

Fix path for plugins\org.eclipse.equinox.launcher_1.0.100.v20080509-1800.jar

Starting from root node and moving downwards if you find any node that has either p or q as its direct child then it is the LCA. (edit - this should be if p or q is the node's value, return it. Otherwise it will fail when one of p or q is a direct child of the other.)

Else if you find a node with p in its right(or left) subtree and q in its left(or right) subtree then it is the LCA.

The fixed code looks like:

treeNodePtr findLCA(treeNodePtr root, treeNodePtr p, treeNodePtr q) {

        // no root no LCA.
        if(!root) {
                return NULL;
        }

        // if either p or q is the root then root is LCA.
        if(root==p || root==q) {
                return root;
        } else {
                // get LCA of p and q in left subtree.
                treeNodePtr l=findLCA(root->left , p , q);

                // get LCA of p and q in right subtree.
                treeNodePtr r=findLCA(root->right , p, q);

                // if one of p or q is in leftsubtree and other is in right
                // then root it the LCA.
                if(l && r) {
                        return root;
                }
                // else if l is not null, l is LCA.
                else if(l) {
                        return l;
                } else {
                        return r;
                }
        }
}

The below code fails when either is the direct child of other.

treeNodePtr findLCA(treeNodePtr root, treeNodePtr p, treeNodePtr q) {

        // no root no LCA.
        if(!root) {
                return NULL;
        }

        // if either p or q is direct child of root then root is LCA.
        if(root->left==p || root->left==q || 
           root->right ==p || root->right ==q) {
                return root;
        } else {
                // get LCA of p and q in left subtree.
                treeNodePtr l=findLCA(root->left , p , q);

                // get LCA of p and q in right subtree.
                treeNodePtr r=findLCA(root->right , p, q);

                // if one of p or q is in leftsubtree and other is in right
                // then root it the LCA.
                if(l && r) {
                        return root;
                }
                // else if l is not null, l is LCA.
                else if(l) {
                        return l;
                } else {
                        return r;
                }
        }
}

Code In Action

Instructions to download source and install:

https://www.python.org/download/

NOTE: You should check for the latest version of python 2.7.x, as it gets updated frequently. Currently (Oct 2017), the latest version is 2.7.14 though this comment will get old and new versions likely will be released every 6 months or so.

wget https://www.python.org/ftp/python/2.7.14/Python-2.7.14.tgz # Download
tar xvfz Python-2.7.14.tgz # unzip
cd Python-2.7.14 # go into directory
./configure
make # build
su # or 'sudo su' if there is no root user
make altinstall

(EDIT: make install -> make altinstall per Ignacio's comment).

If you are on Mac or Linux, just go to the terminal and type in:

whereis jarsigner

It will give you the location of the jarsigner

Swift 3

First set the accessibilityIdentifier as imageName

myImageView.image?.accessibilityIdentifier = "add-image"

Then Use the following code.

extension UIImageView {
  func getFileName() -> String? {
    // First set accessibilityIdentifier of image before calling.
    let imgName = self.image?.accessibilityIdentifier
    return imgName
  }
}

Finally, The calling way of method to identify

myImageView.getFileName()

Not exactly "exporting," but you can select the rows (or Ctrl-A to select all of them) in the grid you'd like to export, and then copy with Ctrl-C.

The default is tab-delimited. You can paste that into Excel or some other editor and manipulate the delimiters all you like.

Also, if you use Ctrl-Shift-C instead of Ctrl-C, you'll also copy the column headers.

I was able to convert using below method for my WebAPI:

[HttpPost]
public HttpResponseMessage Post(dynamic item) // Passing parameter as dynamic
{
JArray itemArray = item["Region"]; // You need to add JSON.NET library
JObject obj = itemArray[0] as JObject;  // Converting from JArray to JObject
Region objRegion = obj.ToObject<Region>(); // Converting to Region object
}

Note: WebUpd8 team's PPA has been discontinued with effective from April 16, 2019. Thus this PPA doesn't have any Java files. More information can be found on PPA's page on Launchpad. Hence the below method no longer works and exists because of historical reasons.

Installing Java 8 on Ubuntu

First you need to add webupd8team Java PPA repository in your system and install Oracle Java 8 using following set of commands.

$ sudo add-apt-repository ppa:webupd8team/java
$ sudo apt-get update
$ sudo apt-get install oracle-java8-installer

Verify Installed Java Version

After successfully installing Oracle Java using the above steps, verify the installed version using the following command.

$ java -version

java version "1.8.0_77"
Java(TM) SE Runtime Environment (build 1.8.0_77-b03)
Java HotSpot(TM) 64-Bit Server VM (build 25.77-b03, mixed mode)

###Configuring the Java environment

In Webupd8 ppa repository also providing a package to set environment variables, Install this package using following command.

$ sudo apt-get install oracle-java8-set-default

Reference

int and unsigned int are two distinct integer types. (int can also be referred to as signed int, or just signed; unsigned int can also be referred to as unsigned.)

As the names imply, int is a signed integer type, and unsigned int is an unsigned integer type. That means that int is able to represent negative values, and unsigned int can represent only non-negative values.

The C language imposes some requirements on the ranges of these types. The range of int must be at least -32767 .. +32767, and the range of unsigned int must be at least 0 .. 65535. This implies that both types must be at least 16 bits. They're 32 bits on many systems, or even 64 bits on some. int typically has an extra negative value due to the two's-complement representation used by most modern systems.

Perhaps the most important difference is the behavior of signed vs. unsigned arithmetic. For signed int, overflow has undefined behavior. For unsigned int, there is no overflow; any operation that yields a value outside the range of the type wraps around, so for example UINT_MAX + 1U == 0U.

Any integer type, either signed or unsigned, models a subrange of the infinite set of mathematical integers. As long as you're working with values within the range of a type, everything works. When you approach the lower or upper bound of a type, you encounter a discontinuity, and you can get unexpected results. For signed integer types, the problems occur only for very large negative and positive values, exceeding INT_MIN and INT_MAX. For unsigned integer types, problems occur for very large positive values and at zero. This can be a source of bugs. For example, this is an infinite loop:

for (unsigned int i = 10; i >= 0; i --) [
    printf("%u\n", i);
}

because i is always greater than or equal to zero; that's the nature of unsigned types. (Inside the loop, when i is zero, i-- sets its value to UINT_MAX.)

I'm not sure you can label obfuscation of an interpreted language as pointless (I'm unable to add a comment to Schwern's post, so here goes a new entry).

I think it's a little shortsighted to assume you know all the possible scenarios where someone would like to obfuscate code, and you assume that anyone will actually be willing to go to whatever necessary lengths to view that code once obfuscated. Consider my current scenario:

I work for a consulting company that is developing a large and fairly sophisticated PHP-based site. The project will be hosted on a client's server that is hosting other sites developed by other consultancies. Technically any code we write is owned by the client, so we can't license it. However, any other consultancy (competitor) with access to the server can copy our code without getting permission from the client first. We therefore have a genuine reason for obfuscation - to make the effort required for a competitor to understand our code more than the effort of creating a copy of our work from scratch.

All arrays passed to php must be object literals. Here's an example from JS/jQuery:

var myarray = {};  //must be declared as an object literal first

myarray[fld1] = val;  // then you can add elements and values
myarray[fld2] = val;
myarray[fld3] = Array();  // array assigned to an element must also be declared as object literal

etc...`

It can now be sent via Ajax in the data: parameter as follows:

data: { new_name: myarray },

php picks this up and reads it as a normal array without any decoding necessary. Here's an example:

$array = $_POST['new_name'];  // myarray became new_name (see above)
$fld1 = array['fld1'];
$fld2 = array['fld2'];
etc...

However, when you return an array to jQuery via Ajax it must first be encoded using json. Here's an example in php:

$return_array = json_encode($return_aray));
print_r($return_array);

And the output from that looks something like this:

{"fname":"James","lname":"Feducia","vip":"true","owner":"false","cell_phone":"(801) 666-0909","email":"[email protected]", "contact_pk":"","travel_agent":""}

{again we see the object literal encoding tags} now this can be read by JS/jQuery as an array without any further action inside JS/JQuery... Here's an example in jquery ajax:

success: function(result) {
console.log(result);
alert( "Return Values: " + result['fname'] + " " + result['lname'] );
}

subscribe() -Invokes an execution of an Observable and registers Observer handlers for notifications it will emit. -Observable- representation of any set of values over any amount of time.

ES6 function

/**
 * Returns true if an object is empty.
 * @param  {*} obj the object to test
 * @return {boolean} returns true if object is empty, otherwise returns false
 */
const pureObjectIsEmpty = obj => obj && obj.constructor === Object && Object.keys(obj).length === 0

Examples:

let obj = "this is an object with String constructor"
console.log(pureObjectIsEmpty(obj)) // empty? true

obj = {}
console.log(pureObjectIsEmpty(obj)) // empty? true

obj = []
console.log(pureObjectIsEmpty(obj)) // empty? true

obj = [{prop:"value"}]
console.log(pureObjectIsEmpty(obj)) // empty? true

obj = {prop:"value"}
console.log(pureObjectIsEmpty(obj)) // empty? false

You could use sparse(a), which would return

(1,2) 1

(1,4) 3

This allows you to keep the information about where your non-zero entries used to be.

You'd better ping 127.0.0.1. Windows ping pauses for one second between pings so you if you want to sleep for 10 seconds, use

ping -n 11 127.0.0.1 > nul

This way you don't need to worry about unexpected early returns (say, there's no default route and the 123.45.67.89 is instantly known to be unreachable.)

Get rid of the semicolon after WordGame.

You really should have discovered this problem when the class was a lot smaller. When you're writing code, you should be compiling about every time you add half a dozen lines.

I found a good article about using the WMP with Firefox on MSDN.

Based on MSDN's article and after doing some trials and errors, I found using JavaScript is better than using conditional comments or nested "EMBED/OBJECT" tags.

I made a JS function that generate WMP object based on given arguments:

<script type="text/javascript">
    function generateWindowsMediaPlayer(
        holderId,   // String
        height,     // Number
        width,      // Number
        videoUrl    // String
        // you can declare more arguments for more flexibility
        ) {
        var holder = document.getElementById(holderId);

        var player = '<object ';
        player += 'height="' + height.toString() + '" ';
        player += 'width="' + width.toString() + '" ';

        videoUrl = encodeURI(videoUrl); // Encode for special characters

        if (navigator.userAgent.indexOf("MSIE") < 0) {
            // Chrome, Firefox, Opera, Safari
            //player += 'type="application/x-ms-wmp" '; //Old Edition
            player += 'type="video/x-ms-wmp" '; //New Edition, suggested by MNRSullivan (Read Comments)
            player += 'data="' + videoUrl + '" >';
        }
        else {
            // Internet Explorer
            player += 'classid="clsid:6BF52A52-394A-11d3-B153-00C04F79FAA6" >';
            player += '<param name="url" value="' + videoUrl + '" />';
        }

        player += '<param name="autoStart" value="false" />';
        player += '<param name="playCount" value="1" />';
        player += '</object>';

        holder.innerHTML = player;
    }
</script>

Then I used that function by writing some markups and inline JS like these:

<div id='wmpHolder'></div>

<script type="text/javascript">        
    window.addEventListener('load', generateWindowsMediaPlayer('wmpHolder', 240, 320, 'http://mysite.com/path/video.ext'));
</script>

You can use jQuery.ready instead of window load event to making the codes more backward-compatible and cross-browser.

I tested the codes over IE 9-10, Chrome 27, Firefox 21, Opera 12 and Safari 5, on Windows 7/8.

This is about as late compared to the guy who said he was late as he was to the original answer, but in my case (MySQL via WAMP on Windows 7), I had to use:

--skip-lock-tables

You should put it into command line in windows.

mysqladmin -u [username] -p flush-hosts
**** [MySQL password]

or

mysqladmin flush-hosts -u [username] -p
**** [MySQL password]

For network login use the following command:

mysqladmin -h <RDS ENDPOINT URL> -P <PORT> -u <USER> -p flush-hosts
mysqladmin -h [YOUR RDS END POINT URL] -P 3306 -u [DB USER] -p flush-hosts 

you can permanently solution your problem by editing my.ini file[Mysql configuration file] change variables max_connections = 10000;

or

login into MySQL using command line -

mysql -u [username] -p
**** [MySQL password]

put the below command into MySQL window

SET GLOBAL max_connect_errors=10000;
set global max_connections = 200;

check veritable using command-

show variables like "max_connections";
show variables like "max_connect_errors";

Beginner

Introductory, no previous programming experience

• C++ Primer * (Stanley Lippman, Josée Lajoie, and Barbara E. Moo) (updated for C++11) Coming at 1k pages, this is a very thorough introduction into C++ that covers just about everything in the language in a very accessible format and in great detail. The fifth edition (released August 16, 2012) covers C++11. [Review]

  ^{* Not to be confused with C++ Primer Plus (Stephen Prata), with a significantly less favorable review.}

• Programming: Principles and Practice Using C++ (Bjarne Stroustrup, 2nd Edition - May 25, 2014) (updated for C++11/C++14) An introduction to programming using C++ by the creator of the language. A good read, that assumes no previous programming experience, but is not only for beginners.

Introductory, with previous programming experience

• A Tour of C++ (Bjarne Stroustrup) (2nd edition for C++17) The “tour” is a quick (about 180 pages and 14 chapters) tutorial overview of all of standard C++ (language and standard library, and using C++11) at a moderately high level for people who already know C++ or at least are experienced programmers. This book is an extended version of the material that constitutes Chapters 2-5 of The C++ Programming Language, 4th edition.

• Accelerated C++ (Andrew Koenig and Barbara Moo, 1st Edition - August 24, 2000) This basically covers the same ground as the C++ Primer, but does so on a fourth of its space. This is largely because it does not attempt to be an introduction to programming, but an introduction to C++ for people who've previously programmed in some other language. It has a steeper learning curve, but, for those who can cope with this, it is a very compact introduction to the language. (Historically, it broke new ground by being the first beginner's book to use a modern approach to teaching the language.) Despite this, the C++ it teaches is purely C++98. [Review]

Best practices

• Effective C++ (Scott Meyers, 3rd Edition - May 22, 2005) This was written with the aim of being the best second book C++ programmers should read, and it succeeded. Earlier editions were aimed at programmers coming from C, the third edition changes this and targets programmers coming from languages like Java. It presents ~50 easy-to-remember rules of thumb along with their rationale in a very accessible (and enjoyable) style. For C++11 and C++14 the examples and a few issues are outdated and Effective Modern C++ should be preferred. [Review]

• Effective Modern C++ (Scott Meyers) This is basically the new version of Effective C++, aimed at C++ programmers making the transition from C++03 to C++11 and C++14.

• Effective STL (Scott Meyers) This aims to do the same to the part of the standard library coming from the STL what Effective C++ did to the language as a whole: It presents rules of thumb along with their rationale. [Review]

Intermediate

• More Effective C++ (Scott Meyers) Even more rules of thumb than Effective C++. Not as important as the ones in the first book, but still good to know.

• Exceptional C++ (Herb Sutter) Presented as a set of puzzles, this has one of the best and thorough discussions of the proper resource management and exception safety in C++ through Resource Acquisition is Initialization (RAII) in addition to in-depth coverage of a variety of other topics including the pimpl idiom, name lookup, good class design, and the C++ memory model. [Review]

• More Exceptional C++ (Herb Sutter) Covers additional exception safety topics not covered in Exceptional C++, in addition to discussion of effective object-oriented programming in C++ and correct use of the STL. [Review]

• Exceptional C++ Style (Herb Sutter) Discusses generic programming, optimization, and resource management; this book also has an excellent exposition of how to write modular code in C++ by using non-member functions and the single responsibility principle. [Review]

• C++ Coding Standards (Herb Sutter and Andrei Alexandrescu) “Coding standards” here doesn't mean “how many spaces should I indent my code?” This book contains 101 best practices, idioms, and common pitfalls that can help you to write correct, understandable, and efficient C++ code. [Review]

• C++ Templates: The Complete Guide (David Vandevoorde and Nicolai M. Josuttis) This is the book about templates as they existed before C++11. It covers everything from the very basics to some of the most advanced template metaprogramming and explains every detail of how templates work (both conceptually and at how they are implemented) and discusses many common pitfalls. Has excellent summaries of the One Definition Rule (ODR) and overload resolution in the appendices. A second edition covering C++11, C++14 and C++17 has been already published. [Review]

• C++ 17 - The Complete Guide (Nicolai M. Josuttis) This book describes all the new features introduced in the C++17 Standard covering everything from the simple ones like 'Inline Variables', 'constexpr if' all the way up to 'Polymorphic Memory Resources' and 'New and Delete with overaligned Data'. [Review]

• C++ in Action (Bartosz Milewski). This book explains C++ and its features by building an application from ground up. [Review]

• Functional Programming in C++ (Ivan Cukic). This book introduces functional programming techniques to modern C++ (C++11 and later). A very nice read for those who want to apply functional programming paradigms to C++.

• Professional C++ (Marc Gregoire, 5th Edition - Feb 2021) Provides a comprehensive and detailed tour of the C++ language implementation replete with professional tips and concise but informative in-text examples, emphasizing C++20 features. Uses C++20 features, such as modules and std::format throughout all examples.

Advanced

• Modern C++ Design (Andrei Alexandrescu) A groundbreaking book on advanced generic programming techniques. Introduces policy-based design, type lists, and fundamental generic programming idioms then explains how many useful design patterns (including small object allocators, functors, factories, visitors, and multi-methods) can be implemented efficiently, modularly, and cleanly using generic programming. [Review]

• C++ Template Metaprogramming (David Abrahams and Aleksey Gurtovoy)

• C++ Concurrency In Action (Anthony Williams) A book covering C++11 concurrency support including the thread library, the atomics library, the C++ memory model, locks and mutexes, as well as issues of designing and debugging multithreaded applications. A second edition covering C++14 and C++17 has been already published. [Review]

• Advanced C++ Metaprogramming (Davide Di Gennaro) A pre-C++11 manual of TMP techniques, focused more on practice than theory. There are a ton of snippets in this book, some of which are made obsolete by type traits, but the techniques, are nonetheless useful to know. If you can put up with the quirky formatting/editing, it is easier to read than Alexandrescu, and arguably, more rewarding. For more experienced developers, there is a good chance that you may pick up something about a dark corner of C++ (a quirk) that usually only comes about through extensive experience.

Reference Style - All Levels

• The C++ Programming Language (Bjarne Stroustrup) (updated for C++11) The classic introduction to C++ by its creator. Written to parallel the classic K&R, this indeed reads very much like it and covers just about everything from the core language to the standard library, to programming paradigms to the language's philosophy. [Review] Note: All releases of the C++ standard are tracked in the question "Where do I find the current C or C++ standard documents?".

• C++ Standard Library Tutorial and Reference (Nicolai Josuttis) (updated for C++11) The introduction and reference for the C++ Standard Library. The second edition (released on April 9, 2012) covers C++11. [Review]

• The C++ IO Streams and Locales (Angelika Langer and Klaus Kreft) There's very little to say about this book except that, if you want to know anything about streams and locales, then this is the one place to find definitive answers. [Review]

C++11/14/17/… References:

• The C++11/14/17 Standard (INCITS/ISO/IEC 14882:2011/2014/2017) This, of course, is the final arbiter of all that is or isn't C++. Be aware, however, that it is intended purely as a reference for experienced users willing to devote considerable time and effort to its understanding. The C++17 standard is released in electronic form for 198 Swiss Francs.

• The C++17 standard is available, but seemingly not in an economical form – directly from the ISO it costs 198 Swiss Francs (about $200 US). For most people, the final draft before standardization is more than adequate (and free). Many will prefer an even newer draft, documenting new features that are likely to be included in C++20.

• Overview of the New C++ (C++11/14) (PDF only) (Scott Meyers) (updated for C++14) These are the presentation materials (slides and some lecture notes) of a three-day training course offered by Scott Meyers, who's a highly respected author on C++. Even though the list of items is short, the quality is high.

• The C++ Core Guidelines (C++11/14/17/…) (edited by Bjarne Stroustrup and Herb Sutter) is an evolving online document consisting of a set of guidelines for using modern C++ well. The guidelines are focused on relatively higher-level issues, such as interfaces, resource management, memory management and concurrency affecting application architecture and library design. The project was announced at CppCon'15 by Bjarne Stroustrup and others and welcomes contributions from the community. Most guidelines are supplemented with a rationale and examples as well as discussions of possible tool support. Many rules are designed specifically to be automatically checkable by static analysis tools.

• The C++ Super-FAQ (Marshall Cline, Bjarne Stroustrup and others) is an effort by the Standard C++ Foundation to unify the C++ FAQs previously maintained individually by Marshall Cline and Bjarne Stroustrup and also incorporating new contributions. The items mostly address issues at an intermediate level and are often written with a humorous tone. Not all items might be fully up to date with the latest edition of the C++ standard yet.

• cppreference.com (C++03/11/14/17/…) (initiated by Nate Kohl) is a wiki that summarizes the basic core-language features and has extensive documentation of the C++ standard library. The documentation is very precise but is easier to read than the official standard document and provides better navigation due to its wiki nature. The project documents all versions of the C++ standard and the site allows filtering the display for a specific version. The project was presented by Nate Kohl at CppCon'14.

Classics / Older

Note: Some information contained within these books may not be up-to-date or no longer considered best practice.

• The Design and Evolution of C++ (Bjarne Stroustrup) If you want to know why the language is the way it is, this book is where you find answers. This covers everything before the standardization of C++.

• Ruminations on C++ - (Andrew Koenig and Barbara Moo) [Review]

• Advanced C++ Programming Styles and Idioms (James Coplien) A predecessor of the pattern movement, it describes many C++-specific “idioms”. It's certainly a very good book and might still be worth a read if you can spare the time, but quite old and not up-to-date with current C++.

• Large Scale C++ Software Design (John Lakos) Lakos explains techniques to manage very big C++ software projects. Certainly, a good read, if it only was up to date. It was written long before C++ 98 and misses on many features (e.g. namespaces) important for large-scale projects. If you need to work in a big C++ software project, you might want to read it, although you need to take more than a grain of salt with it. The first volume of a new edition is released in 2019.

• Inside the C++ Object Model (Stanley Lippman) If you want to know how virtual member functions are commonly implemented and how base objects are commonly laid out in memory in a multi-inheritance scenario, and how all this affects performance, this is where you will find thorough discussions of such topics.

• The Annotated C++ Reference Manual (Bjarne Stroustrup, Margaret A. Ellis) This book is quite outdated in the fact that it explores the 1989 C++ 2.0 version - Templates, exceptions, namespaces and new casts were not yet introduced. Saying that however, this book goes through the entire C++ standard of the time explaining the rationale, the possible implementations, and features of the language. This is not a book to learn programming principles and patterns on C++, but to understand every aspect of the C++ language.

• Thinking in C++ (Bruce Eckel, 2nd Edition, 2000). Two volumes; is a tutorial style free set of intro level books. Downloads: vol 1, vol 2. Unfortunately they're marred by a number of trivial errors (e.g. maintaining that temporaries are automatically const), with no official errata list. A partial 3^rd party errata list is available at http://www.computersciencelab.com/Eckel.htm, but it is apparently not maintained.

• Scientific and Engineering C++: An Introduction to Advanced Techniques and Examples (John Barton and Lee Nackman) It is a comprehensive and very detailed book that tried to explain and make use of all the features available in C++, in the context of numerical methods. It introduced at the time several new techniques, such as the Curiously Recurring Template Pattern (CRTP, also called Barton-Nackman trick). It pioneered several techniques such as dimensional analysis and automatic differentiation. It came with a lot of compilable and useful code, ranging from an expression parser to a Lapack wrapper. The code is still available online. Unfortunately, the books have become somewhat outdated in the style and C++ features, however, it was an incredible tour-de-force at the time (1994, pre-STL). The chapters on dynamics inheritance are a bit complicated to understand and not very useful. An updated version of this classic book that includes move semantics and the lessons learned from the STL would be very nice.

You can send the FormData object in ajax request using the following code,

$("form#formElement").submit(function(){
    var formData = new FormData($(this)[0]);
});

This is very similar to the accepted answer but an actual answer to the question topic. This will submit the form elements automatically in the FormData and you don't need to manually append the data to FormData variable.

The ajax method looks like this,

$("form#formElement").submit(function(){
    var formData = new FormData($(this)[0]);
    //append some non-form data also
    formData.append('other_data',$("#someInputData").val());
    $.ajax({
        type: "POST",
        url: postDataUrl,
        data: formData,
        processData: false,
        contentType: false,
        dataType: "json",
        success: function(data, textStatus, jqXHR) {
           //process data
        },
        error: function(data, textStatus, jqXHR) {
           //process error msg
        },
});

You can also manually pass the form element inside the FormData object as a parameter like this

var formElem = $("#formId");
var formdata = new FormData(formElem[0]);

Hope it helps. ;)

import { Component, ElementRef, OnInit } from '@angular/core';

@Component({
  selector:'display',
  template:`
   <input (input)="updateName($event.target.value)">
   <p> My name : {{ myName }}</p>
  `
})
class DisplayComponent implements OnInit {
  constructor(public element: ElementRef) {
    this.element.nativeElement // <- your direct element reference 
  }
  ngOnInit() {
    var el = this.element.nativeElement;
    console.log(el);
  }
  updateName(value) {
    // ...
  }
}

Example updated to work with the latest version

For more details on native element, here