javascript magazin

I have an angular application where, when a user logs in, I set his status to 'online' on t… Read more Angular: User Logoff On Closing Window

I am trying to validate an array of objects with express-validator. I have been using the new '… Read more Express-validator 5.2.0 - Validate Wildcard Array Of Objects - Compare

I have a component which fetch data from an API to display some details to user: const ItemDetail =… Read more React Js - How To Prevent Rendering Before State Being Updated [hooks]

Best described as example in this Fiddle My goal is to show the crosses when the user hovers above … Read more Removing Mouseover Event Issue In Case Of Embedded Tables

The dropzone.js documentation/wiki doesn't say how to send form fields. I just read about the F… Read more Send Formdata Using Dropzone.js On Sendingmultiple

I've created a little bouncing boxes demo in javascript using the canvas. Each box (for want of… Read more Canvas Multiple Bouncing Squares - Clearing Canvas

In here one field named to[0] is used...but actually I have them 'N' times with the +1 in i… Read more Comparing Two Dates N Times Using Jquery

I want to configure a Highcharts treemap so that if the datalabel is long enough to overflow the po… Read more How Do I Hide An Overflowing Highcharts Treemap Datalabel?

When I paste the following into the text area, when onblur it's supposed to tidy up the text pa… Read more Can't Remove Empty Line Break In Textarea With Javascript Replace Method

I am trying to express what I understood from reading some articles about dom0 event model in javas… Read more Understanding Dom0 Event Model Of Javascript

I am loading a local instance of localForage and using it with Promise chains to save basic data. A… Read more Localforage Setitem/getitem Unreliable In Firefox / Firestorage Plus

I'm having a hard time extracting presentationNotes from a keynote presentation using JXA (Java… Read more Extract Presentationnotes From Keynote

I tried to find out which is a dom object or which is a javascript object var domObj =document.getE… Read more How To Differentiate Between Dom Object And Javascript Object

I am trying to use knockout-sortable, with the mapping plugin, to drag a list of products to anothe… Read more Knockout Draggable Sortable Mapping Clone Alteration

I AJAXified commenting system so when Post Comment button is clicked ajax call is made instead of t… Read more .submit Doesn't Work If The Bind Object Was Refreshed By Ajax

This is my JS on home.js: angular.module('HomeApp', ['BaseApp']) .controller(&#… Read more Angularjs Updates Variable In A Different File Without Being Instructed To Do So

I am adding a new field in one of my web apps, for visitors to add a product. Pushing 'add a p… Read more How Can I Increment A Number Matched Via Regex?

I have a problem with scrolling over fixed element, it doesn't work on my site. But I saw that … Read more How To Enable Scrolling Over Fixed Element?

I have a Node.js app running on Ubuntu 14 on Amazon EC2. I want to send an email in case that the m… Read more Node.js Get Notification For High Memory Usage

I need to fire an event on Click i.e handleClick. It's not working either on the image or any b… Read more Onclick Event Not Firing In Reactjs

I have a working rest service that I want to invoke in react. The code does display the list of cou… Read more React Does Not Wait For Server Call To Complete And Throws Error

I am trying to integrate react native and native android app. applicationId in apps build.gradle is… Read more Activity Class {rcm.samapp/com.comp.android.ui....} Does Not Exist

I have an issue with an FB.api only loading the first time a page is retrieved via AJAX. FB.getLogi… Read more Fb.api Only Loads On First Ajax Call To Page

i am creating textboxes dynamically so how to call below javascript function for textbox 'oncha… Read more How To Write Javascript Coding In C# Code Behind?

I wrote a custom right-click menu thing for my website. Firefox automatically does spellchecking an… Read more Javascript: I Have A Custom Right-click Menu But Still Want The Spellcheck!

I have an Angular 2 app https://github.com/DanWahlin/Angular-JumpStart. I tried to patch Element.pr… Read more Patching Element.prototype.addeventlistener Breaks Any Angular 2 App

So i have a page with a bunch of images. And I have a function which fades out these layers using I… Read more Ie Filter Antialiasing Problem

1) I can't add set loop imacros by javascript, How can i add it ? var macro; macro = '… Read more How Can I Set Loop Imacros By Javascript?

Hi I would like to Create JavaScript app which post message to Yammer, using Yammer REST API. but I… Read more I Can Not Post Yammer Via Rest Api Using Ajax

I need to automatically log users in to an asp.net application who will be logging in from a php we… Read more Automatically Submitting An Asp.net Form With Javascript

I have some Javascript code. I want to trace errors and debug it. how to do it ? Solution 1: It us… Read more How To Debug Javascript Code Or Functions?

I just created a function that return JSON.stringify like this: JSON.stringify = function (item, re… Read more Overriding Json.stringify Causing Error

When creating click events, I do my best to bind them only once – generally to a parent shared by a… Read more Event Delegation On Mouseover

I want to generate a tree with the below structure, it will take an input 'n' to generate t… Read more Tree Generation Algorithm

I am updating a vaadin project from vaadin 6 version to vaadin 7. It contains some native Javascrip… Read more Javascript Native Method Throws Unexpectedly Exception

I've made a directive for vertically centering elements on page, but when I'm trying to use… Read more Angular Class Directive On Bootstrap Ui Modal

In my laravel project controller i wrote a code for approve and reject appointments. on rejecting t… Read more Prevent Laravel Link_to_action To Perform On Double Click

I'm utterly stuck trying to make php api exchange dates with angular frontend. From PHP to JS I… Read more How To Handle Datetime Between Php (laravel Api) And Javascript (angularjs)

This question about crossfading images already gave an answer to the crossfading solution in Canvas… Read more Fading A Loaded Image Into Canvas With Drawimage

learning javascript. I got a project with links that trigger videos that live inside an iframe. The… Read more How To Change Variable Depending On Element Clicked

Is there a JavaScript code snippet to take a value of 1-31 and convert it to 1st, 2nd, 3rd, etc? Th… Read more Take A Value 1-31 And Convert It To Ordinal Date W/ Javascript

im trying to access an attribute that i created in a select list. Read more Use Created Attribute With Javascript In Select List

Does javascript function stored in memory once when we define a function anywhere weather its in ob… Read more Is A Function Stored In Memory Only Once?

Possible Duplicate: return from a function ajax JavaScript asynchronous return value / assignment w… Read more Scope Of Javascript Variable

I am trying to modify a react native boilerplate so that I can be run on Android platform. I instal… Read more React Native: Can't Find Variable: Require

I am learning react and struggling to get a second dropdown to populate based on which option is cl… Read more Populate 2nd Dropdown Based On Selection From 1st Dropdown In React.js

I have this URL: http://example.com/createSend/step4_1.aspx?cID=876XYZ964D293CF&snap=true&j… Read more How Can I Match On, But Exclude A Regex Pattern?

For certain URLs (e. g. http://www.nyest.hu/iframe/240/10 ), IE8 (and older) never stops loading wi… Read more Ie8 Hangs On Document.write With "this Command Is Not Supported"

The example below is a simple example of an iframe which uses window.parent.[turn designmode on] (t… Read more Ie8 Iframe Designmode Loses Selection

I'm trying to execute some inline javascript within an HTML page as early in page processing as… Read more Are External Scripts In The Head Of An Html Document Guaranteed To Execute Before Scripts Contained Within The Body?

If the array is : 2,3,7,9; then the ways in which we can have permutations are: 2 7 3 9 2 9 3 7 3 7… Read more Permutations Of Small And Large Elements

Id like to display dynamic background images using angular's ng-repeat directive. At the momen… Read more Dynamic Background Image With Angular Js Ng-repeat

Here is a js object that represents the file system in the command line os project I'm working … Read more How To Make An Object Into Text In Js

I am trying to read a JSON file(menu.json) to an array(myList) in order to run a function(PopulateR… Read more Populate Json File Data Into Array Then Feed Array Into Mmenu Plugin

I have previoulsy asked a similar question of howto change a button icon, which was answered here H… Read more How To Change A Specific Jquery Mobile Button Icon With Javascript

In our Angular 4 app, we've a which has a The has The has The Solution 1: To initializ… Read more How To Reset Data And View Of Child Input On Click Of Parent's Button Click?

How can I use my last column to set the color of the marker? google.load('visualization',… Read more Set Fill Color Marker Google Map

Afternoon all, I am running into an issue where i need to run one function, then after that is fini… Read more Forcing One Javascript Function To Wait To Run Until The First Has Finished

i'm trying to find an expression that matches a phone number in the format of (0[2,3,6,7,8,or … Read more Javascript Regex- Phone Number

in ControllerOne $scope.displayReport = function( status ){ statusCkeck( status ) ; } statusCk… Read more How Can I Call A Function That Is In Another Controler (angular Js)

For simplicity of the example I have a DataTable which I load from HTML. This DataTable is having p… Read more How To Refresh Datatables Sort And Filter Info

var foo = { someKey: 'someValue' }; var bar = 'someKey'; How do I get the value &#… Read more Referencing Keys In A Javascript Object

I've seen there is much conversation about how to get the current zoom factor in the browser, b… Read more How To Catch Zoom Event With Gwt And Chrome

Question: Can I override 'default' functions in Javascript? Background: After figuring out … Read more Overriding Default Functions In Javascript?

input char:a (unicode:97) output type:2 input char:Space (unicode:32) output type:12 in java… Read more In Javascript How Can I Get A Value Indicating A Character's General Category Like Java Character.gettype?

I am trying to make an HTTP POST request with Angular 2 as below. saveUserSelection() { var jso… Read more Angular 2: Http Post Request With Url Parameters And Body Type Parameter

Can someone please show me how I can get my JSON data and use it in javascript? My data looks like … Read more How To Parse Json Data, Using Javascript

I am having a long day.... I have this code below Solution 1: HTML < div class = "backgrou… Read more Jquery Click Child When Parent Clicked