Monaco Editor : The Monaco Editor is the code editor that powers VS Code.
Rich IntelliSense and Validation for TypeScript, JavaScript, CSS, LESS.
Basic Syntax Coloriz...
Intern : Intern is a complete test system for JavaScript designed to help you write and run consistent, high-quality test cases for your JavaScript libraries a...
Cypress : JavaScript End to End Testing Framework. Fast, easy and reliable testing for anything that runs in a browser.
jscs is a code style checker. jscs can check cases, which are not implemented in jshint, but it does not duplicate jshint functionality, so you should use jscs and jshint together.