"Ext JS" ExtJS download address and online official reference document address __js

for older versions, the solution to the help document in the Ext2.2 package that is not open directly is:

Note that you want to have HTTP access to the normal open, otherwise it will be in the load.

Http://localhost:9090/ext2.2/docs/index.html

1, ext-js-4.2.1 development package

http://www.sencha.com/products/extjs/download/ext-js-4.2.1/2281

2, EXT-JS official reference documents

after the interface is open, you can select any version of the API document, follow the screenshot.

http://docs.sencha.com/extjs/4.2.1/#!/api/