What are the best libraries for JavaScript, tell them what you like?

Reply format

Application field ... You like the JS library name ... function (a sentence)

Web .... jquery ..... Well-known DOM operations library

Seajs. JS's management framework

Ejs ... JS template engine without learning cost

Async ... Asynchronous management Library, the most used in the Nodejs, can also use in the front-end

Underscore. js extension, add a lot of methods

Nodejs ... Express ... nodejs the most popular HTTP service Framework .

Mongo-sql ... Convert JSON to MySQL. Cheer it up! No need to write MySQL.

Mongoose. The operating framework of the MONGDB database

MySQL ... MySQL database operation framework

Async ... Asynchronous callback management tool, no longer worrying about asynchronous callbacks

Gulp ... You can package compressed code files, super simple and easy to use than grunt.

The game ... cocos2d-js ..... Low learning cost, high compatibility, easy to use game development framework,

What are the best libraries for JavaScript, tell them what you like?