> For the complete documentation index, see [llms.txt](https://jonathan-zhang.gitbook.io/javascript-steppitguide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jonathan-zhang.gitbook.io/javascript-steppitguide/jin-jie-zhi-shi/11/amd.md).
# AMD
* require.js `requirejs.org/`
* 全局define函数
* 全局require函数
* 依赖JS会自动、异步加载
```javascript
//util.js
define(function () {
return{
getFormatDate: function (date,type) {
if (type === 1) {
return '2017-06-15'
}
if (type === 2) {
return '2017年6月15日'
}
}
}
});
//a-util.js
define(['./util.js'],function (util) {
return{
aGetFormatDate: function (date) {
return util.getFormatDate(date,2);
}
}
});
// a.js
define('[./a-util.js]',function (aUtil) {
return{
printDate:function (date) {
console.log(aUtil.aGetFormatDate);
}
}
});
//main.js
require('[./a.js]',function (a) {
var date = new Date();
a.printDate(date);
});
```
* 使用
```markup
Document
AMD test
```