Javascript: Learn Javascript In A DAY! - The Ultimate Crash Course to Learning the Basics of the Javascript Programming Language In No Time (Javascript, ... JSON, Javascript Development Book 1) by Acodemy

Author:Acodemy [Acodemy]
Language: eng
Format: epub
Published: 2015-01-26T18:30:00+00:00

var fido = new dog("Fido", "Bulldog", 3);

fido.feed('kibbles'); // prints out 'Fido likes kibbles'

In the above example we declared a method feed, passed it a variable and even invoked it from the Object that was created. The above example also shows how in a function you can refer to the properties of the object using the this keyword. At the same time we can also make reference to external objects within the function itself like how we called the document.write method of the document object. Using methods we can also edit the underlying properties of the object as well. Here is an example:

function dog(name, breed, age) {

this.name = name;

this.breed = breed;

this.age = age;

this.addAge = function(years){

this.age+=years;

}

}

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