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Detailed explanation of JS sandbox mode

巴扎黑
巴扎黑Original
2017-09-05 09:38:131910browse

This article mainly introduces the JS sandbox mode, and analyzes the principles and implementation methods of the JS sandbox mode in the form of examples. Friends in need can refer to the following

The examples in this article describe the JS sandbox mode. Share it with everyone for your reference, the details are as follows:


//SandBox(['module1,module2'],function(box){});
/*
*
*
* @function
* @constructor
* @param []  array   模块名数组
* @param callback function 回调函数
* 功能:新建一块可用于模块运行的环境(沙箱),自己的代码放在回调函数里,且不会对其他的个人沙箱造成影响
和js模块模式配合的天衣无缝
*
* */
function SandBox() {
  //私有的变量
  var args = Array.prototype.slice.call(arguments),
      callback = args.pop(),
      //模块可以作为一个数组传递,或作为单独的参数传递
      modules = (args && typeof args[0] == "string") ? args : args[0];
  //确保该函数作为构造函数调用
  if (!(this instanceof SandBox)) {
    return new SandBox(modules,callback);
  }
  //不指定模块名和“*”都表示“使用所有模块”
  if (!modules || modules[0] === "*") {
    for(value in SandBox.modules){
      modules.push(value);
    }
  }
  //初始化所需要的模块(将想要的模块方法添加到box对象上)
    for (var i = 0; i < modules.length; i++) {
      SandBox.modules[modules[i]](this);
    }
  //自己的代码写在回调函数里,this就是拥有指定模块功能的box对象
  callback(this);
}
 SandBox.prototype={
   name:"My Application",
   version:"1.0",
   getName:function() {
     return this.name;
   }
 };
/*
* 预定义的模块
*
* */
SandBox.modules={};
SandBox.modules.event=function(box){
  //私有属性
  var xx="xxx";
  //公共方法
  box.attachEvent=function(){
    console.log("modules:event------API:attachEvent")
  };
  box.dettachEvent=function(){
  };
}
SandBox.modules.ajax=function(box) {
  var xx = "xxx";
  box.makeRequest = function () {
  };
  box.getResponse = function () {
  };
}
SandBox([&#39;event&#39;,&#39;ajax&#39;],function(box){
  box.attachEvent();
})

Screenshot of running effect:

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