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Javascript

Tools for programming in Javascript directly on Internet. Online tool list for JS programming (including frameworks), with console and debug mode.

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Javascript

dCode does not offer a tool for Javascript programming directly online because many other tools are available online and very powerful. (See below)

Answers to Questions (FAQ)

What is JavaScript? (Definition)

JavaScript is a programming language that allows you to create interactive content on websites. It primarily runs in browsers, allowing developers to manipulate page elements or handle user events.

What are the best JavaScript Editor Tool for Online Programming?

This ranking is subjective and not exhaustive but contains sufficient tools to solve any type of problem with JavaScript.

The following free online javascript editors allow to evaluate Javascript functions, some natively integrate JS frameworks (jQuery, etc.) and especially they integrate HTML and CSS which is often linked to Javascript. The sites also offer HTML output and console output for debugging.

JSFiddle here

Codepen.io here

JSBin here

Liveweave here

These tools also have a function to register and share codes.

How to open the Javascript console?

To open the JavaScript console in a web browser, press F12 or click Developer Tools in the menu.

Part of the screen then displays several windows and a Console tab should appear.

Enter JavaScript code directly into the console and press Enter to run it. The results of code execution will be displayed in the console.

How to test if Javascript is activated?

Normally it is activated otherwise 99.9% of websites will no longer work on the browser. To test Javascript, type this in the address bar:

Example: The code javascript:alert(++[[]][+[]]+[+[]]); should display a message box with 10

Source code

dCode retains ownership of the "Javascript" source code. Any algorithm for the "Javascript" algorithm, applet or snippet or script (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, breaker, translator), or any "Javascript" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) or any database download or API access for "Javascript" or any other element are not public (except explicit open source licence like Creative Commons). Same with the download for offline use on PC, mobile, tablet, iPhone or Android app.
Reminder: dCode is an educational and teaching resource, accessible online for free and for everyone.

Cite dCode

The content of the page "Javascript" and its results may be freely copied and reused, including for commercial purposes, provided that dCode.fr is cited as the source. Exporting the results is free and can be done simply by clicking on the export icons ⤓ (.csv or .txt format) or ⧉ (copy and paste).
To cite dCode.fr on another website, use the link: https://www.dcode.fr/javascript-editor
In a scientific article or book, the recommended bibliographic citation is: Javascript on dCode.fr [online website], retrieved on 2025-04-15, https://www.dcode.fr/javascript-editor

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Questions / Comments

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