1. A JavaScript library for building user interfaces

  2. Reactive Components for Modern Web Interfaces

  3. Polymer is a library that uses the latest web technologies to let you create custom HTML elements.

  4. Appium is an open source test automation framework for use with native and hybrid mobile apps.

  5. Give your JS App some Backbone with Models, Views, Collections, and Events

  6. An enterprise JavaScript Library for cross-platform app development with HTML5 JavaScript widgets and easy integration with most popular JavaScript Frameworks.

  7. Curated set of user interface interactions, effects, widgets, and themes built on top of the jQuery JavaScript Library

  8. A JavaScript framework for creating ambitious web apps

  9. A lightweight and modular front-end framework for developing fast and powerful web interfaces

  10. Knockout makes it easier to create rich, responsive UIs with JavaScript