JavaScript Guide

I am new to React, have seen some of the similar issues, but didn’t find why this happens. I am get… Read more Uncaught Typeerror: This.state.data.map Is Not A Function

I've seen numerous solutions that utilize RegEx, and to be quite frank, that seems ridiculously… Read more How To Access Request Query String Parameters In Javascript?

Let's assume I have following button code: Ext.create('widget.button', { handler: f… Read more Save Ajax Response To File

I've failed to get this code working: (function() { // Creates a new canvas element and app… Read more Canvas Html5 Javascript Code Not Working, With Canvas.todataurl()

Is there a way to attach a link to the nodes in 3d-force-graph (https://github.com/vasturiano/3d-fo… Read more Attach Link To 3d-force-graph Node

I am working on a webpage and I want to simulate a link click. The way i have it setup is a user w… Read more Simulate Link Click From Function

I'm trying to remove the following line of code from http://trakt.tv/calendars/my/shows/ using … Read more How To Use Greasemonkey To Remove A Href Block

Possible Duplicate: Google Map API inside a Reveal Modal not showing fully I have a Google Map AP… Read more Google Map Api In Foundation Reveal Modal Not Displaying Properly

How to pass directive parameter to its controller? I use directive: .directive('directive'… Read more Pass Directive Isolate Scope Bindings To Its Controller `this` Context (angularjs V1.6)

Thanks to a javascript function and an ajax request, I have a count indicating the number of points… Read more Use The Result Of An Ajax Request In My Views.py, Django

I have app where I am trying to check whether a document with the users ID already exists, if yes t… Read more Check If Document Already Exists And If Yes Then Update, Otherwise Create New - Mongoose

im trying to add counting number for duplicate in JS. and i am completely stack in this case below.… Read more How To Count Duplicate Object In Js

i have the following code, this creates the number of textfields that i enter inside the textField.… Read more Binding Dynamic Text Fields Created By Javascript To Bean

simple thing. $.getJSON is used and the result from the .php file being called is caught as respons… Read more How To Print The Associative Array In Print_r() Fashion From A $.getjson Call?

I have a Nested Gridview having a link is used to show and hide div tag in nested gridview. By def… Read more Add Value To Textbox In Nested Gridview By Using Jquery

I have an old codebase full of subclasses of a some external class, using prototypal inheritance. R… Read more Proto Inheritance From Es6 Class

I have an input form that has a jQuery event applied to it that creates square brackets around the … Read more Enable Backspace With Jquery Oninput Event Within The Text On An Input Form?

In Javascript certain operators are processed before others: 1 + 2 * 3 // 1 + (2 * 3) // 7 because … Read more What Is The Operator Precedence Of Await?

This is from knockout.dirtyFlag.js ;(function (ko) { ko.DirtyFlag = function (objectToTrack… Read more How To Load Kolite With Requirejs?

I have an HTML document with about 30,000 words in it. I'd like to be able to do something whe… Read more Get Word Click In Paragraphs

I am to write a regex for following requirements At least one character At least one digit Length … Read more Password Regex For Specific Requirements

I'm using Angular 2 and I have noticed an unexpected behaviour. I have a datasource class, whic… Read more Angular 2 Array After Subscribe Has Elements But Length Is 0

I have adapted a code from https://bl.ocks.org/mbostock/4063550 to make a nice figure for the tidy… Read more How To Apply Preferences To A D3.tree Node

Hi I have quite a bit of jquery on this page homestartpage .com it all works fine on every browser… Read more Jquery And Safari 7 - Slidetoggle And Fadetoggle Not Working

I have a table which contains input text and select option and button.The table row is cloned when … Read more Issue In Select Option In Jquery Mobile

In Javascript, Number.MAX_VALUE is the biggest value for a number. I got a question that (Number.MA… Read more Something About Number.max_value

I'm actually doing this in a JSON object but for this question, I will simplify. I can't se… Read more Iterating Over Array Of Objects In Handlebars

My mapDispatchToProps works like this: const mapDispatchToProps = dispatch => ({ getCourts: (… Read more Spreading Redux Actions Does Not Work In Mapdispatchtoprops

I am using Redux and React to build a web application. My application is an analytics application t… Read more Redux Performance With Large Objects

i started learning angular a week ago, and now im trying to construct a app by myself (because peop… Read more Import Json Data And Show It In Angular App

Is is possible to get the ABSOLUTE path to a file using javascript or jquery? These are my trials s… Read more Absolute Path To File On Input[type=file]

In an asp.net mvc application, I'm successfully handling exceptions that occur when I make a jq… Read more How Recognize Javascript Fetch() Inside Handleerrorattribute Onexception?

I'm working on a Facebook-like toolbar for my website. There's a part of the toolbar where … Read more Dynamically Changing Height Of Div Element Based On Content

I am using jQuery Mobile 1.1.1 and Apache Cordova 2.0.0. I want my app to exit when I press back bu… Read more Jquery Mobile Get Current Page

I am the author of FireJS. I am encountering an issue with react hooks. (node:21793) UnhandledPromi… Read more Webpack External React Causes React Hooks Error

I am learning JavaScript and backbone.js and trying to develop one small web app. But the problem … Read more Page Getting Refreshed/reloaded Many Times

I'm just learning about how to best organize my javascript code, and I had a question regarding… Read more How To Call A Method Inside A Javascript Object

I have a bootstrap grid where each grid item is populated from an array of objects but after each g… Read more How To Handle State Of Multiple Buttons With React?

I was shocked to see such a basic subtraction bug in JS, I am sure most of you here would have expe… Read more Simple Subtraction Bug In Javascript

If I extend the Object prototype and try to use some functions of jQuery 2.0.3 I get errors... For … Read more Jquery Error When Extending Object Prototype

So I a making a game and got the idea of having a semi transparent png animation from a spritesheet… Read more Canvas Game Animation

I have a bit of code where I am looping through all the select boxes on a page and binding a .hover… Read more Event Binding On Dynamically Created Elements?

Is there any way I can change my web app to listen on HTTPS instead of HTTP. I'm using node.js/… Read more Redirect From Http To Https Using Node.js/express

I am working on a solution that implements adding text to textboxes but I disable the normal key ev… Read more Ipad Disable Keyevent On Input

I am using this code, to check all checkboxes on my view. var checked = self.includeAllInSoundscri… Read more Knockout Is Slow When Unchecking Checkboxes On A Large (1000) Dataset

The DOM looks like this: A B C D E < Solution 1: Simplest way is using prev() $( "div#sele… Read more Select Sibling Before An Element In Jquery?

Which code I need to replace with onload function? I create a phonegap project, when I run it on th… Read more Onload Function Phonegap Android

I have a dynamic form that utilizes ng-min/ng-max for validation. My ng-max & ng-min are bound… Read more Angularjs Comparing $viewvalue Against Ng-model Or Object Param

I am having an issue where my routing using react-router-dom is showing all routes at once. So whe… Read more React-router V4 Showing Multiple Routes At Once

I'm using the stopwatch code I found here: http://www.kellishaver.com/projects/stopwatch/ (func… Read more Jquery: Stopwatch

This is an extension to my previous question javascript dynamically adding and removing classes As … Read more Issue While Avoiding Foreach Loop

I would like to work with this code: Unfortunately, the geometries sometimes cross. How is it poss… Read more Avoid Crossing Of Geometries

I'm looping through about 60 addresses to get them geocoded for use on a Google Map. My callbac… Read more In My Geocoder Geocode Callback, How Do I Determine Which Request The Result Corresponds To?

Why can not I perform a class transition in d3.js? main.html: d3 playing</div><h2 id="… Read more Can Not Perform A Class Transition In D3.js

I am making an application that sends emails from a User as described by this article. Everything … Read more Send Mail With Attachment Microsoft Graph Not Working

I'm trying to implement voting very similar to Stack Overflow's. There are multiple items t… Read more How To Update Votes Client Side Using Webforms

I have an object that looks like this: const response = { id1-field1: true, id1-field2: 0, id… Read more Convert Object Keys And Values To An Array Of Objects

Consider the following code. Notice that a is seemingly accessed before it is defined. The Soluti… Read more Function Names Defined As Parameters To A Function Call Aren't Hoisted. Why Not?

I'm riding Rails 3 and using Prototype. That said I'm only really asking a JS question.. I… Read more Change Value Of Hidden_field_tag With Js (prototype & Rails 3)

I am registering java script to my Asp.net code behind file, which is working fine. Now, I have som… Read more How To Unregister Page.clientscript In C# Asp.net

I'm trying to find an example of how to connect to an AWS ES instance in node.js, and then hit … Read more Creating A Valid Signed Request To An Aws Es Instance From Node.js

The Fetch Specifications say that the default Fetch mode is 'no-cors' - A request has an … Read more Fetch Api Default Cross-origin Behavior

I'm using Paper.js to make an image editor that handles a queue of images. These images come fr… Read more Paper.js Loading Images And The Active Layer

This is a dead simple question and no doubt a duplicate but I've searched around and haven'… Read more Which Context Is The Path Relative To?