NodeJS_001：MAC 下安装

环境：MAC OS X10.12

1. 先安装 Homebrew
请参考《安装Homebrew》。

2. 安装 node
$ brew install node
$ node -v

3. 测试 node

(1) vim test.js
const http = require('http');

const hostname = '127.0.0.1';
const port = 3000;

const server = http.createServer((req, res) => {
  res.statusCode = 200;
  res.setHeader('Content-Type', 'text/plain');
  res.end('Hello World\n');
});

server.listen(port, hostname, () => {
  console.log(`Server running at http://${hostname}:${port}/`);
});

(2) node test.js

(3) curl http://localhost:3000