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); }...") |
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=Function Constructor= | |||
<pre> | <pre> | ||
function | var Person = function(name, yearOfBirth, job){ | ||
this.name = name; | |||
this.yearOfBirth = yearOfBirth; | |||
this.job = job; | |||
} | } | ||
var | |||
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);
}