JSLint
CodeClimate
ESLint
Codacy
SensioLabs Insight
SonarQube
CodeFactor.io
Source-Navigator NG
CodePen
JSFiddle
CodeSandbox
GitHub
replit
Pastebin.com
Visual Studio Code
JS Bin
JSLint CodePenBased on our record, CodePen seems to be a lot more popular than JSLint. While we know about 484 links to CodePen, we've tracked only 4 mentions of JSLint. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
UPDATE 8/22/2011: found http://jshint.com, it looks much better than http://jslint.com/. Source: about 2 years ago
Use https://jslint.com to find the unescaped quote or whatever that's invalidating the file. Remember to put quote marks in dialogue as \". Source: over 2 years ago
Ooh! I'm pretty sure I actually know this one! I watched a bunch of Douglas Crockford talk's at Yahoo! Talking about the weirdness of the language he helped develop (such as this one). He also has built JSLint to help pull out code that runs but can have unexpected results. Booleans in JS evaluate if something is truthy or falsy and undefined is falsy (19:20), however a string of "undefined" would be truthy, and... Source: over 2 years ago
For future, just pop your code into an HTML Validator, a JS Linter, or a CSS Linter and it will check for basic stuff like this. There are also plugins in most IDEs for these kind of things which are incredibly useful. Source: about 3 years ago
Build Projects: Websites like GitHub and GitLab host countless open-source projects where you can contribute and collaborate with other developers. Moreover, platforms like CodePen and Glitch provide environments for building and sharing web projects. - Source: dev.to / 13 days ago
(https://codepen.io/) This online code editor and community is a playground for developers. Experiment with HTML, CSS, and JavaScript code snippets, create visual demos, and share your creations with the world. CodePen is a great way to showcase your coding skills and learn from others. - Source: dev.to / 27 days ago
See the Pen Styling text with a CSS glitch animation - Version 2 by Oscar Jite-Orimiono (@oscar-jite) on CodePen. - Source: dev.to / about 2 months ago
Today we've just published a quick minor update, v3.0.284. One of the things that's the most interesting is we've added Codepen, JSFiddle and Codesandbox support to SciChart.js. - Source: dev.to / about 1 month ago
CodePen (Visit Site) - A social development environment for front-end designers and developers, CodePen allows users to share and collaborate on code snippets. It's a great platform for inspiration and experimentation. - Source: dev.to / 2 months ago
CodeClimate - Code Climate provides automated code review for your apps, letting you fix quality and security issues before they hit production. We check every commit, branch and pull request for changes in quality and potential vulnerabilities.
JSFiddle - Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.
ESLint - The fully pluggable JavaScript code quality tool
CodeSandbox - Online playground for React
Codacy - Automatically reviews code style, security, duplication, complexity, and coverage on every change while tracking code quality throughout your sprints.
GitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
