Web applications have evolved from simple HTML pages into rich, interactive applications that provide a great user experience. Today’s web apps pose a challenge for developers, however: how do you create and maintain efficient JavaScript code that downloads quickly and works across different browsers?
The Closure tools help developers to build rich web applications with JavaScript that is both powerful and efficient. The Closure tools include:
A JavaScript optimizer
The Closure Compiler compiles JavaScript into compact, high-performance code. The compiler removes dead code and rewrites and minimizes what’s left so that it downloads and runs quickly.
A comprehensive JavaScript library
The Closure Library is a broad, well-tested, modular, and cross-browser JavaScript library. You can pull just what you need from a large set of reusable UI widgets and controls, and from lower-level utilities for DOM manipulation, server communication, animation, data structures, unit testing, rich-text editing, and more.
An easy template’s system for both Java & JavaScript
Closure Templates simplify the task of dynamically generating HTML. They have a simple syntax that is natural for programmers.
Closure Templates are implemented for both JavaScript and Java, so that you can use the same templates on both the server and client side. For the client side, Closure Templates are precompiled into efficient JavaScript.
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