如何使用IIFE创建Javascript对象 [英] How to create Javascript Object using IIFE

问题描述

我有一个类似于以下内容的Student对象，

I have a Student object like the following,

function Student(){
      this.studentName = "";
}
Student.prototype.setStudentName=function(studentName){
      this.studentName = studentName;
}
Student.prototype.getStudentName=function(){
      return this.studentName;
}

当我执行new Student();时它可以工作.但是，如果我像下面那样创建相同的对象，则会出现错误，

It works when I do new Student();. But If I create the same Object like the following it gives an error,

(function(){

    function Student(){
          this.studentName = "";
    }
    Student.prototype.setStudentName=function(studentName){
          this.studentName = studentName;
    }
    Student.prototype.getStudentName=function(){
          return this.studentName;
    }
            })();

当我向new Student()发出警报时，出现错误Student is not defined. 我尝试在IIFE中编写return new Student()，但也没有用.如何使用IIFE创建Javascript对象?

When I alert new Student(), I am getting an error Student is not defined. I tried writing return new Student() inside IIFE but didn't work for that also. How can I create Javascript objects using IIFE?

推荐答案

要使 Student 在IIFE之外可用，请将其返回并分配给全局变量:

To make Student available outside the IIFE, return it and assign it to a global variable:

var Student = (function(){

    function Student(){
      this.studentName = "";
    }

    /* more code */

    return Student;
})();

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