Examples of how JavaScript defines global objects and javascript examples

Examples of how JavaScript defines global objects and javascript examples

This example describes how JavaScript defines global objects. We will share this with you for your reference. The details are as follows:

!function (factory) {  factory(window['Hi'] = {    __a: function () {      console.log('Hi.__a');    },    __b: function () {      console.log('Hi.__b');    },    __c: function () {      console.log('Hi.__c');    }  });}(function (Hi) {  if (typeof Hi === undefined) {    Hi = {};  }  Object.defineProperty(Hi, 'appName', {    get: function () {      return 'this is app name.';    }  })});console.log(Hi.appName);//this is app name.Hi.__b();//Hi.__b

Pass the object (Hi) defined function as a parameter (factory) to the immediate execution function by immediately executing the Function

!function (factory) { }();

In the immediate execution function, the object to be defined is passed as the parameter of the Parameter Function for immediate execution of the function.

The same object definition can also be implemented as follows:

var myObj = myObj || {};(function (myObj) {  myObj.__a = function () {    console.log('myObj.__a');  };  myObj.name = 'this is myObj.name';})(myObj);console.log(myObj.name);//this is myObj.namemyObj.__a();//myObj.__a

These definition methods are relatively independent and can be stored and used as the functional modules of the party's capital.

Similar to Jquery plug-in writing.