JavaScript Exercises

i want to validate a textbox who have some url value like blogs address or site adress how can i va… Read more How Can I Validate A Url In Javascript Using Regular Expression

How could I disable javascript entirely on WebBrowser in WinForms? Solution 1: You can't. Clie… Read more Disable Javascript In Winforms Webbrowser Control?

How do I incorporate localStorage in my code? I have a show and hide button on my google map that w… Read more Local Storage For Google Map Markers

Suppose I define a variable like this var today = Date(); console.log(today.getMonth()); // Throw E… Read more Why We Can't Call Methods Of Date() Class Without New Operator

I want to check if all objects of classA share also classB. However, with the following code, it th… Read more How To Check If All Objects Of Specific Class Share Another Class As Well?

I have some code that I'm trying to run to get an existing element however it keeps returning n… Read more Document.getelementbyid Is Returning Null Even After Being Created

I have a class that takes some coordinate and duration data. I want to use it to animate an svg. In… Read more How To Use Requestanimationframe Inside A Class Object

I need a page with a button to insert a new user, with fields 'country','name' and … Read more Creating A Crud Using Php + Bootstrap Modal + Mysql + Js

I got response in json format but i m facing problem to how to parse it below is my code var jsonVa… Read more Parse Json Object In Javascript Getting Undefined

If I search a query in google maps for example 'carlton victoria australia' then it will gi… Read more Drawing Region On Google Maps

I want to determine use combo or not by the environment support http2 or not. But, I cannot find th… Read more How To Detect The Browser Support Http2 Or Not In Browser Environment By Javascript?

My HTML code is like this : My Javascript code is like this : var chart; var legend; var chartDa… Read more How To Change Amcharts Pie Themes?

I have a json and would like to filter for one key multiple attribites as exact match. I tried the … Read more Filter Array On Multiple Attributes On Same Key

Was just trying to sync a model in Sencha Touch and realised that it doesn't yet support sendin… Read more Request Payload Data In Sencha Touch

I'm struggling a bit with joining jstl and jquery. I have a Spring aplication which provides me… Read more Calling Jquery Function From Jstl C:foreach ( Function Not Defined) On Page Load

I'm having mistakes do not know where error Having trouble using JavaScript or Ajax and text di… Read more Having Trouble Using Javascript Or Ajax And Text Display The Same Page

I have a custom class which I am extending for various purposes, and the following code is working … Read more Can A Child Class Respond To Events Captured By Its Super?

I have an applet running in a browser tab. When I switch to a different tab in the same browser, or… Read more Restore Focus To Java Applet When Browser/tab Gains Focus

Using Object rest destructuring is straightforward to blacklist properties of an object, like in th… Read more Object Destructuring ({ X, Y, ...rest }) For Whitelisting Properties Of An Object

I have written this simple function: HTML: Solution 1: Your setInterval will attempt to call the … Read more Setinterval And Function

Using the dust.js javascript templating engine, I want to pass an array directly: var templateConte… Read more How Do I Loop Through An Array Passed Directly To Dust.js?

I am not great with anything beyond basic javascript so please forgive the simple question. I am us… Read more Javascript - Get A Variable From Inside The Local Scope Of A Function

I have a simple image rotator on a website consisting of 4 images that have to appear for a few sec… Read more Simple Javascript Image Rotator

I'm trying to assign 2 values to each radio button, to output in 2 fields. But it doesn't w… Read more Assign 2 Values To Each Radio Button

I have a webpage with a large header image at the top of the page that occupies the entire view wid… Read more Jquery Resize Function Not Working In Chrome

Hey I made a javascript calculator and want the to try 5 + 5 it give me 55 other then 10 ? How ever… Read more Javascript Calculator 5 + 5 = 55?

i am displaying list of twitter users on my website and twitter follow button against each user and… Read more How To Implement Twitter Follow Without Showing Popup

I'm trying to implement an experimental version of a 2x2x2 Rubiks Cube. I have adopted instruct… Read more Three.js: Weird Rotation Of Child Objects

I have the following object list: mediaList[ {id:1, url:'www.example.com/image1', adType:&… Read more Set Timeout To React Function

I'm trying to use navigator.storage on http://0.0.0.0:5000 while developing locally, but naviga… Read more Why Is Navigator.storage Undefined In Latest Chrome?

lot of times when passing function by reference in javascript usually to events i have to write: s… Read more Are There Any Drawbacks In Doing This: Adding A New Function In Prototype That Returns The Same Function With Arguments Applied

I'm using react-leaftlet map library https://react-leaflet.js.org/en/ in my react app and i hav… Read more Pop Up On React Leaflet Map Library

In SQL dialects you can sort by random and you can pass a seed to the random function in order to g… Read more How To Pass A Seed Value To Random Order Function In Sequelize

How can I tell who the parent node of a selection is? I'm getting a selection with: var… Read more How Can I Tell The Owner Of A Selection?

Current DOM tree is like: ......... Solution 1: The old fashioned way, which is fine for… Read more How Change State Or Property Of An Outer / Separate Component In Reactjs?

I have this string which i'm trying to store and get to localStorage, and retrieve from it so i… Read more "'localstorage' Is Null Or Not An Object" Error In Ie8

I created a checkbox in my html.erb as the following: Solution 1: Use .on() As elements are added… Read more I Can't Access The Keys Of Checkbox With Javascript When I Generate The Checkbox Dynamically

inner conditional: 5 inner conditional: 4 inner conditional: 3 inner conditional: 2 inner condition… Read more Understanding Recursive Loop That Returns An Inverted Count

How can I use JQuery UI autocomplete using fetched json data? It's not working on mine. I use … Read more Searching Data From Json Using Jquery Ui Autocomplete Not Working

This is my code: red Solution 1: What you want to do is add an onchange part to your inputs to han… Read more Set Background Color To Value Of Range Input

Let's say in my component I set the state like so: this.setState({ test: 'value',… Read more Get State Value By A Dynamic Key In React

I'm referencing this url: https://tracker.icon.foundation/block/29562412 If you scroll down to … Read more Webscraping Blockchain Data Seemingly Embedded In Javascript Through Python, Is This Even The Right Approach?

How to run sequence functions in JavaScript: I've 4 functions like this: function myfunction() … Read more How To Run Sequence Functions In Javascript

Is it possible to rotate a Div in cyclic rotation using JavaScript. I have four DIVs in an HTML pag… Read more Div Moving In Cycle Rotation Using Javascript

With the lodash library, I'd like to be able to pluck multiple values into a multi-dimensional … Read more Lodash Multidimensional Pluck

I having two buttons as Save and Submit and some of the drop-downs and text-boxes. There is need to… Read more Conditional Required Validation With Buttons In Angularjs

Here is my code. Mouse: Solution 1: As per w3c org option doc's value can have only string … Read more Access Values In Select Option Tag With More Than One Value Using Javascript

If you do console.log($('some selector')) in the browser, it returns what looks like an arr… Read more How Is $('h1') Logging To The Web Console As An Array In Jquery?

I am using yepnope.js to load javascript files dynamically,and I've noticed that my scripts app… Read more What Is Causing My Scripts To Be Requested Twice While Using Modernizr.load (yepnope.js)

If you have a seller accounts at amazon or ever happened to look at their product upload form, I am… Read more Form Based On Product Types

When i run my site on mozilla i got this error above.Here some code snippet which might be helpful … Read more Error: Bootstrap's Javascript Requires Jquery

how to redirect to struts action from java script? if condition in the script got success then i ne… Read more How To Redirect To Struts Action From Java Script In Struts 2?

I tried using content scripts manifest 'content_scripts': [ { 'matches'… Read more How To Hide Everything Before Page Load With Chrome Extension

i have made a session variable Session['Background1'] = value; in one of my code behind fun… Read more How To Pass Session Value From Code Behind To Javascript

im newbie how to load variable php in javascript? this is my script (popup.php) session->userdat… Read more Load Php Variable In Javascript

I have a php-file that i want to put to work in a div: Solution 1: Here is a full working example… Read more Jquery Login Form In Div Without Refreshing Whole Page

I have a really strange issue. I simply want to select a clicked element. I did this a lot of times… Read more $(this) Is Selecting Window Object Instead Of Clicked Element Jquery

Is it possible to somehow access to console.log after it gets overwritten? window.console = { log: … Read more Access Window.console After Overwrite

Here is my code. I am getting student's data from backed, filtering it. I am not able to set th… Read more How To Populate Select Option Using Api

I've a project where I scan a QR code, and it will then automatically print out information bas… Read more Javascript - Window.location.assign Not Working