RequireJS

RequireJS is a JavaScript file and module loader. It is optimized for in-browser use, but it can be used in other JavaScript environments, like Rhino andNode. Using a modular script loader like RequireJS will improve the speed and quality of your code.

http://requirejs.org/

Build a simple client-side MVC app with RequireJS

As a web developer, you certainly often started coding your JavaScript in a single file, and, as the code base gets larger and larger, it became really difficult to maintain. To solve this problem you can split your code in several files, add more script tags and use global variables to reach functions declared in other files. But this pollutes the global namespace and for each file an additional HTTP request consumes bandwidth, which slows down the loading time of the page.

If this happened to you, you certainly understand that there is a strong need to organize our front-end code differently, particularly if we have to build large-scale web apps with thousands of lines of JavaScript. We need a new way to organize all this mess to make it easier to maintain. This new technique consists in using script loaders. Plenty of them are available on the web, but we’ll focus on a very good one called RequireJS.

In this step by step tutorial you will learn how to build a simple MVC (Model – View – Controller) app using RequireJS. You don’t need any particular previous knowledge of script loading – we’ll see the basics together.

http://verekia.com/requirejs/build-simple-client-side-mvc-app-require-js

RequireJS

RequireJS loads plain JavaScript files as well as more defined modules. It is optimized for in-browser use, including in a Web Worker, but it can be used in other JavaScript environments, like Rhino and Node. It implements the CommonJS Transport/C proposal API.
RequireJS uses plain script tags to load modules/files, so it should allow for easy debugging. It can be used simply to load existing JavaScript files, so you can add it to your existing project without having to re-write your JavaScript files.
RequireJS includes an optimization tool you can run as part of your packaging steps for deploying your code. The optimization tool can combine and minify your JavaScript files to allow for better performance.
If the JavaScript file defines a JavaScript module via require.def(), then there are other benefits RequireJS can offer: better CommonJS support and loading multiple versions of a module in a page. RequireJS also allows for module modifiers and has a plugin system that supports features like i18n string bundles, text file dependencies, and JSONP service dependencies.
RequireJS does not have any dependencies on a JavaScript framework. It is tri-licensed -- BSD, MIT, and GPL.
The standard require.js file is around 4.9KB when minified via Closure Compiler and gzipped. require.js can be built without some features, with the smallest option (just dependency tracking and simple module loading) weighing in at 3.9KB minified, gzipped.
RequireJS works in IE 6+, Firefox 2+, Safari 3.2+, Chrome 3+, and Opera 10+.

http://requirejs.org/

RequireJS

RequireJS loads plain JavaScript files as well as more defined modules. It is optimized for in-browser use, but it can be used in other JavaScript environments, like Rhino. It implements the CommonJS Transport/C proposal API.

RequireJS uses plain script tags to load modules/files, so it should allow for easy debugging. It can be used simply to load existing JavaScript files, so you can add it to your existing project without having to re-write your JavaScript files.

RequireJS includes an optimization tool you can run as part of your packaging steps for deploying your code. The optimization tool can combine and minify your JavaScript files to allow for better performance.

If the JavaScript file defines a JavaScript module via require.def(), then there are other benefits RequireJS can offer: better CommonJS support and loading multiple versions of a module in a page. RequireJS also allows for module modifiers and has a plugin system that supports features like i18n string bundles and text file dependencies.

RequireJS does not have any dependencies on a JavaScript framework. It is tri-licensed -- BSD, MIT, and GPL.

The core require.js file around 3.5KB when minified via Closure Compiler and gzipped. require.js can also be built without some features, with the smallest option (just dependency tracking and simple module loading) weighing in at 2.4KB minified, gzipped.

The unit tests work in IE 6+, Firefox 3.0+, Safari 4+, Chrome 3+, and Opera 10+.

http://ajaxian.com/archives/requirejs-asynchronous-javascript-loading?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+ajaxian+(Ajaxian+Blog)

http://requirejs.org/