Difference between revisions of "Constructors"

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(Created page with "<pre> function Person(name, age){ this.name = name; this.age=age; this.display=function(){ console.log("My name is " + name); console.log("My age is "+ age); }...")
 
 
(7 intermediate revisions by the same user not shown)
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=Function Constructor=
<pre>
<pre>
function Person(name, age){
var Person = function(name, yearOfBirth, job){
  this.name = name;
    this.name = name;
  this.age=age;
    this.yearOfBirth = yearOfBirth;
  this.display=function(){
    this.job = job;
    console.log("My name is " + name);
      
     console.log("My age is "+ age);
  }
}
}
var person = new Person("robert",24);
 
person.display();
 
var john = new Person('john', 1967, 'teacher');
john.calculateAge();
 
</pre>
</pre>
== Adding Inheritance ==
'''The calculateAge was taken out of the constructor and added to the protoype so other instances of person could use it without it being a part of the person function constructor.'''
<pre>
Person.protoytpe.calculateAge = function() {
        console.log(2016 - this.yearOfBirth);
    }
</pre>
==[[#top|Back To Top]]-[[Main_Page| Home]] - [[Java Script|Category]]==

Latest revision as of 17:20, 6 November 2016

Function Constructor

var Person = function(name, yearOfBirth, job){
    this.name = name;
    this.yearOfBirth = yearOfBirth;
    this.job = job;
    
}


var john = new Person('john', 1967, 'teacher');
john.calculateAge();

Adding Inheritance

The calculateAge was taken out of the constructor and added to the protoype so other instances of person could use it without it being a part of the person function constructor.

Person.protoytpe.calculateAge = function() {
        console.log(2016 - this.yearOfBirth);
    }

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