JavaScript Exercises

Using knockout js here: Following on from my post at Knockout JS: Creating dynamic table columns I … Read more Knockout Js: Get Textbox Data From Table Under For-each Binding

I am writing an application in javascript. In my application there is an option to search for a str… Read more Javascript Syntax Error: Invalid Regular Expression

I was wondering if a web worker would be a secure way to sandbox untrusted javascript code. Let'… Read more Are Web Workers A Secure Way To Sandbox Untrusted Javascript Code

I'm stuck on my project and requesting your help! I'm trying to call an Activity(BarcodeSc… Read more Calling Activity From Webview With @javascriptinterface

I'm searching for an efficient way to check if two numbers have the same sign. Basically I'… Read more Check If Two Integers Have The Same Sign

http://jsbin.com/emoba5/3/edit click here to view demo Does anybody know how to make the image slid… Read more Jquery Stop Image Slider When Accordian Menu Is Closed

I need to update a field of multiple collection documents. The field is a DBRef and I just need to … Read more Mongodb - Updating Only $ref From Dbref Field Type

When I try to define a variable using var, everything is working. But defining it as const is not w… Read more Define Const Variable Using Eval()

The latest MS Office update has disabled vbscript which I am using in Excel VBA to evaluate express… Read more How To Evaluate Vbscript Expression From Javascript Via Vba

How can I access the content of hidden field, where the hiddenfiled's visibility set to Visible… Read more Access Hidden Fields Value If Its Visibility Set To False(using C#)

I developed a Singnup page using Reactjs on the front-end and laravel on the backend and I want whe… Read more How To Redirect To Another Page Using History On React Js?

I have a JavaScript API that has a function x that takes some parameters and a callback function. I… Read more Javascript Manualreset Event

What I'd like to do is make a variable that is a specific class/id object. For example, on line… Read more How Should I Initialize This Variable For Use With Jquery?

I am making a online quiz system and i want to convert my timer from seconds to minutes and seconds… Read more How To Convert Seconds To Minutes Using Javascript...?

I have an app scaffolded using create-react-app. I would like to have the folder structure like thi… Read more Src/images Folder In Create-react-app

EDIT for the tldr version scroll down to where it says I'm extremely close in the code below. P… Read more How To Marry This Todo List With Instant Search In Svelte?

When I am in the login screen I would like once the user logs in that it is also redirected to the … Read more How To Navigate In A Screen Which Is Not Defined Because Of A Variable?

I want to check if an object exists, and has a property. Currently I get a 'myObject is undefin… Read more Javascript Check If Object Property Exists, Even When Object Is Undefined

I have a json array created by javascript and need to post it to a php file in order to save the da… Read more How To Post Json Array To Php Using Jquery's Ajax Method?

I want to unzip a file that contains an html page, css, and js directories. I want to unzip this te… Read more Temporarily Unzip A File To View Contents Within A Browser

Looks like in TypeScript it's absolutely fine (from the compiler perspective) to have such code… Read more Why Duck Typing Is Allowed For Classes In Typescript

I am very new to jQuery and I can't seem to figure this out... I want to ask the user to enter … Read more Dynamically Calling On Existing Divs With Jquery

I know that ID is a faster selector than class in Javascript. But what if I cache the selector? Whe… Read more Is Id Selector Faster Than Class Selector When It Is Cached In Jquery

I'm trying to send Ajax POST using Struts action form. I've succeeded to create this kind o… Read more Using Angularjs For Ajax Post In Struts 1

Hi i have problem with my table in bootstrap. I am getting data from server about timetable. This d… Read more How To Update Data For Table Column In React?

Currently I have a functioning code for dynamically adding and removing form inputs on my page. I h… Read more Generalizing Jquery Dynamic Add/remove Form Input For Multiple Forms

Regarding conditional if/else statements, are the following examples functionally equivalent? funct… Read more Are These Js Conditional Statements Functionally Equivalent?

I have an HTML page with the following div tags Solution 1: So you want cloneNode of your div, so… Read more How To Repeat Div Using Jquery Or Javascript?

I believe that to get two params properly mapped back to the callback when using Observable.bindCal… Read more How Do I Use The Rxjs Selector Function In The Observable.bindcallback Method?

How can I maintain my SESSIONS in Node.js? For example, I want to store UserID in SESSION using Nod… Read more Maintain Sessions In Node.js

I pretty new to js and jquery so please bear with me. I'd like to change the background-positio… Read more Adding Amount To Background-position On Click (jquery)

I'm just starting using Qunit and would like to know whether is there a way to capture/verify/o… Read more Avoid / Capture / Verify A Javascript Alert When Testing A Method That Displays One With Qunit

I'm using passport js as authentication middleware, local strategy. It works. But when the cook… Read more Passport Js, Can't Sign In After Cookie Has Expired

What is the best practice to check if a DOM element exists in javascript? Should one check if an it… Read more Javascript Check If Dom Element Exists Best Practice

I am trying to build an hybrid mobile app using Phonegap/Cordova in Android platform. And I have su… Read more "require" Exception In Cordova/phonegap Project

I want to switch between 2 values in a class. Something like this, Solution 1: Try this one this … Read more Switch Between 2 Values In A Class

When I install e.g. jQuery from Nuget into my VS C# project, jquery.js ends up in my packages folde… Read more Why Do Nuget Javascript Packages Copy To Scripts Folder

I have array of objects called newArray and oldArray. Like this : [{name: 'abc', label: … Read more Merge Array With Unique Keys

What I am trying to do is make a element with custom class for ports and path so that I can add an … Read more Joint.js Add Custom Ports With Path Class. For Custom Elements

I am trying to add classic animation to pseudo-3D bar chart. It's very simple to do it right wi… Read more D3.js "growing Up" Path Animation For 3d Bar Chart

can anyone tell me what program can beautify php, html, js. It can be commercial solution. Thanx fo… Read more Php, Html Beautifier?

What I would like to do is change an object's attribute, but for only that one. So something li… Read more Jquery - Change For Only Clicked Element, Not All With The Same Class