每日科技英文47: 微软的多线程，多任务力作Napa.js库

今日要点:

1. 微软napa.js让google v8 js引擎具有多线程多任务运行功能

2. nodejs基于v8引擎，因此napa.js也可以适配到nodejs上

3. napa.js核心代码都是使用c++11标准撰写，代码精心设计，编写优美，代码量不多不少，非常适合研究。如果你想学习如何使用c++11标准的新功能，那么napa.js是你的不二选择(本人就是从napa.js中学会了右值引用，以前一直对右值引用迷迷糊糊，不够清晰)

4. napa.js实现了线程池，抽象了task系统。目前多线程，多任务比较好的参考实现，我个人认为是: libuv库和napa.js库。

5. 好东西，就是要分享

Naps.js是什么?

Napa.js is a multi-threaded JavaScript runtime built on V8, which was originally designed to develop highly iterative services with non-compromised performance in Bing.

As it evolves, we find it useful to complement Node.js in CPU-bound tasks, with the capability of executing JavaScript in multiple V8 isolates and communicating between them.

Napa.js is exposed as a Node.js module, while it can also be embedded in a host process without Node.js dependency.

Features

• Multi-threaded JavaScript runtime
• Node.js compatible module architecture with NPM support
• API for object transportation, object sharing and synchronization across JavaScript threads
• API for pluggable logging, metric and memory allocator
• Distributed as a Node.js module, as well as supporting embed scenarios

附录:
napa.js github地址
napa.js用法