Wednesday, 8 June 2016

Javascript Array

JavaScript array is an object that represents a collection of similar type of elements.
There are 3 ways to construct array in JavaScript
  1. By array literal
  2. By creating instance of Array directly (using new keyword)
  3. By using an Array constructor (using new key

1) JavaScript array literal

Below syntax is creating an array.
var arrayname=[value1,value2.....valueN];
Eg: var cars = ["Hyundai", "Volvo", "BMW"];

2) JavaScript Array directly (new keyword)

The syntax of javascript array using new keyword is as below.
var arrayname=new Array();  
Eg: var cars = new Array("Hyundai", "Volvo", "BMW");

3) By using array constructor

Here, you need to create instance of array by passing arguments in constructor .

var arrayname=new Array("param1","param2","param3")
var emp=new Array("Hyundai","Volvo","BMW")

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