JS elevation 6. Object-oriented Programming (2) Creating an object _2 constructor is also a general function

1. The constructor is also a general function , and the following creates a constructor.

var person=function(name,age,job) {        this. name=name;          this. age= age;         this. job=job;         this. sayname=function() {            Console.log (this. Name);        }    }

(1) Call by using the constructor function

1 var person=New person ("xiaoming", +, "Doctor"); 2   Person.sayname (); // xiaoming

(2) using normal function calls

1  Person ("Xiaoming", "Doctor"); 2   Window.sayname (); // xiaoming 3   Sayname (); // xiaoming

2. You can use call () or apply () to invoke the person function in a specific object scope.

1 var o=New  Object (); 2   Person.call (O, "xiaoming", "Doctor"); 3   Person.apply (o,["xiaoming1", "Doctor"]); // xiaoming1 4   O.sayname (); // xiaoming

JS elevation 6. Object-oriented Programming (2) Creating an object _2 constructor is also a general function