Function Creation Object (3) combination using constructor pattern and prototype mode

Constructor patterns are used to define instance properties, and prototype patterns are used to define methods and shared properties. Benefit: Each instance has its own copy of the instance property, with a reference to the shared method, saving memory and supporting passing parameters to the constructor.

function Person (name,age,job) {          this.name=name;          This.age=age;          This.job=job;          this.friends=["Shelby", "Court"];} person.prototype={        Contructor:person,        sayname:function () {             alert (this.name);   }} var person1=new person ("Nicholas", "Engineer"), var person2-new person ("Greg", "Doctor");p Erson1.friends.push (' "Van"); alert (person1.friends);//shely,count,van;alert (person2.friends);//shely,count;alert (person1.friends=== PERSON2.FRIEDNS);//false;alert (person1.sayname===person2.sayname);//true;

Appears to be the default pattern for defining reference types.

Function Creation Object (3) combination using constructor pattern and prototype mode