Commonly used JavaScript libraries and practical skills of front-end modular

The modular concept of
AMD is requirejs standardized modular output defined in the promotion process.
Asynchronous load modules, front-dependent, perform advance
Define definition module DEFINE ([ 'the require', 'foo'], function () {} return);
the Require loading module (front-dependent) require ([ 'foo', 'bar '], function (foo, bar) {});
the CMD is output SeaJS standardized modular defined in the promotion process.
Define defined exports derived define (function (require, exports, module) {});
stores some of the objects on the current module module.
require (./ a) directly introduced, require.async introduced asynchronous
synchronous load, dependent on the nearest delayed executed
there are similar CommonjsModule / 2.0 specification
AMD modular code

//index.html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script data-main="js/main.js" src="./js/require.js"></script>
</head>
<body>
    <script>

    </script>
</body>
</html>

//main.js
define(['require','main'],function(require){
    require(['index','test'],function(index,test){
        console.log(index());
        console.log(test());
    })
})

//index.js
define(['require','index'],function(require){
    var index = function(){
        console.log('test index');
    }
    return index;
 })

//test.js
define(['require','index'],function(require){
   var init = function(){
       console.log('test init');
   }
   return init;
})

A method call

//index.js
define(['require','index'],function(require){
    var index = {};
    var index = {
        init:function(){
            console.log('test init');
        }
    }
    return index;
 })

//main.js
define(['require','main'],function(require){
    require(['index','test'],function(index,test){
        console.log(index.init());
        console.log(test.init());
    })
})

//test.js
define(['require','index'],function(require){
    var index = {};

   var index = {
       init:function(){
           console.log('test init');
       }
   }
   return index;
})

Effect

seajs applications

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="./js/sea.js"></script>
</head>
<body>
    <script>
        // seajs 的简单配置
seajs.config({
  base: "./js/",
  alias: {
    "jquery": "jquery.js"
  }
})

// 加载入口模块
seajs.use("main")    
    </script>
</body>
</html>

//index.js
define(function(require,exports,module){
    // 透过exports对外提供接口
    // exports.doSomething = function(){
    //     console.log('my ok ');
    // }
    // exports.doSomething2 = function(){
    //     console.log('my ok2 ');
    // }
    var a = {};
    a.doSomething = function(){
        console.log('my ok ');
    }
    a.doSomething2 = function(){
        console.log('my ok2 ');
    }
    // console.log(module);
    module.exports = a;
    
});

//main.js
define(function(require,exports,module){
    require('jquery');
    console.log('..aaa');
    var index =require.async('index',function(index){
        console.log(index);
    });
    
})

This article from the front to see the JavaScript libraries and utilities commonly used technique of modular video

Commonly used JavaScript libraries and practical skills of front-end modular

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