Type Script
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
Cypress
Fast, easy and reliable testing for anything that runs in a browser.
6to5
Turn ES6 code into readable vanilla ES5 with source maps
Yarn
Fast, reliable, and secure dependency management.
Mocha
A simple, flexible, fun javascript test framework for node.js & the browser. (BDD, TDD, QUnit styles via interfaces)
Gulp
The streaming build system
Recoil
Recoil is an experimental state management library for React apps. It provides several capabilities that are difficult to achieve with React alone, while being compatible with the newest features of React.
Bluebird
Bluebird is a full featured promise library with unmatched performance.
Ag Grid
The best JavaScript Data Table for building Enterprise Applications. Supports React / Angular / Vue / Plain JavaScript.
Platform
Reactive libraries for Angular
Nock
HTTP mocking and expectations library
JSHint
JSHint is a community-driven tool to detect errors in JavaScript code and enforce your team's coding conventions.
Protractor
E2E test framework for Angular apps
Grunt
Grunt: The JavaScript Task Runner
Sinon.js
Test spies, stubs and mocks for JavaScript.
Testcafe
A Node.js tool to automate end-to-end web testing.
Jasmine
DOM-less simple JavaScript testing framework