Differences between LABjs, RequireJS, and SeaJS

I. LABjs's core is LAB (Loading and Blocking): Loading refers to Asynchronous Parallel Loading, and Blocking refers to synchronous waiting for execution. LABjs implements these two features through the elegant syntax (script and wait). Its core value is performance optimization. LABjs is a file loader.

Ii. RequireJS and SeaJS are module loaders and advocate a modular development concept. The core value is to make JavaScript modular development easier and more natural. The module loader can also be downgraded to a file loader. Therefore, using RequireJS and SeaJS can also achieve LABjs performance optimization.

Iii. Both RequireJS and SeaJS are good module loaders. The differences between the two are as follows:

1. There are differences between the two. RequireJS wants to be a browser-side module loader and a module loader in environments such as Rhino and Node. SeaJS focuses on the Web browser, and it can be easily run on the Node server through Node extension.
2. There are differences between the two standards. RequireJS follows the AMD (asynchronous module definition) specification, and SeaJS follows the CMD (general module definition) specification. Different Specifications lead to different APIs of the two. SeaJS is more concise and elegant, and is closer to CommonJS Modules/1.1 and Node Modules specifications.
3. There are differences between the two Community concepts. RequireJS is trying to allow a third-party class library to modify itself to support RequireJS. Currently, only a few communities have adopted it. SeaJS does not require strong pushing, but uses self-encapsulated methods to "Haina baichuan". At present, there are mature packaging strategies.
4. There are differences in code quality between the two. RequireJS does not have obvious bugs, and SeaJS does not.
5. The two have different support for debugging. With the plug-in, SeaJS can realize the automatic ing function in Fiddler and realize automatic combo and other functions, which is very convenient and convenient. RequireJS does not support this feature.
6. The plug-in mechanisms of the two are different. RequireJS adopts the form of reserved interfaces in the source code, and the code written for the plug-in is left in the source code. The plug-in mechanism adopted by SeaJS is the same as that of Node: open itself, allowing plug-in developers to directly access or modify it, making it very flexible and implementing various types of plug-ins.

There are still many differences in details.

In short, SeaJS is more concise and elegant from API to implementation than RequireJS. If RequireJS is a Prototype class library, SeaJS is a jQuery class library.
Finally, I would like to pay tribute to RequireJS! RequireJS and SeaJS are good brothers. It is most important to work together to promote modular development ideas.