Google made a set of its JavaScript tools open sourced and is available for all in Google code labs. The tool has been used internally in the development of Google Maps, Gmail and Google Docs. The various tools called compilers Closure, Closure Library Closure templates and Closure Inspector are some of the javascript tools which were open sourced.
The compiler is used to refine and optimize JavaScript code. It makes your code run even with slow connections, quickly executed. The closure Inspector helps diagnose covert code and improve the code performance. This is an extension for Firebug.
Library Closure is the Google’s JavaScript library. It is based on the standards and provides application services to JS components and works in different browser. With the closure templates you can automate the build of HTML pages.
