es6-module
es6提供了module，以此支持web端app的模块化建设，但是这个module只能在服务器生效，下面是一个完整的测试。
plugin.js
1 export default function a() { 2 return "通过default暴露的内容"; 3 } 4 5 export function b() { 6 return "通过自定义名字单独暴露的内容"; 7 } 8 9 export { c }; 10 11 function c() { 12 return "通过自定义名字集体暴露的内容"; 13 }
index.html
1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8" /> 5 <meta http-equiv="X-UA-Compatible" content="IE=edge" /> 6 <meta name="viewport" content="width=device-width, initial-scale=1.0" /> 7 <title>es6-module</title> 8 </head> 9 <body> 10 <div id="html">html文件已加载</div> 11 <div id="plugin">plugin模块未加载</div> 12 <script type="module"> 13 import a, { b, c } from "./plugin"; 14 const text = [a(), b(), c()].join("\n"); 15 document.getElementById("plugin").innerText = text; 16 </script> 17 </body> 18 </html>
server.js
1 const http = require("http"), // node内部模块，用来创建http服务器 2 fs = require("fs"), // node内部模块，用来阅读服务器文件 3 { exec } = require("child_process"); // node内部模块，用来执行一段node命令 4 5 const server = new http.Server(); 6 7 server.on("request", (req, res) => { 8 const url = req.url.replace(/(?<=\/\w+$)\b/, ".js"); // 补全文件后缀 9 const suffix = url.match(/(?<=\.)\w+$/)[0]; // 获取文件后缀 10 let mimeType = ""; 11 switch (suffix) { 12 case "html": 13 mimeType = "text/html"; 14 break; 15 case "ico": 16 mimeType = "image/x-icon"; 17 break; 18 default: 19 mimeType = "text/javascript"; 20 } 21 22 fs.readFile(__dirname + url, (err, data) => { 23 res.writeHead(200, { 24 "Content-Type": mimeType, 25 }); 26 if (data) { 27 res.write(data); 28 } 29 res.end(); 30 }); 31 }); 32 33 server.listen(80); 34 35 exec("start http://localhost/index.html");
