Working with Javascript Array

Hi All,

Today we will learn about Working with Javascript Array.

So, an Array is a special kind of variable in Javascript,which holds multiple values at a time.

It's so easy to declare an Array in Javascrtipt.As we know that Array index will be starting from 0.

For Example:-

<script type="text/javascript" language="javascript">
   function javascript_array()
   {
      //defining an Array
      var employee = new Array(); 
      employee[0] = "Vishal";
      employee[1] = "Kumar";
      employee[2] = "Neeraj";
      employee[3] = "Pune"; 
      employee[4] = "9876512345"; 

      //Now accessing a value from an Array
      var value =  employee[0]; 

      alert(value); //Output will be Vishal 

      //Now changing the value of first element
      employee[0] = "Vinay";

      alert(employee[0]); //Output will be Vinay 

      //Array.Length and Array.IndexOf works exactly like Dot Net 
      var array_length = employee.length;
      var find_string = employee.indexOf("Neeraj");

      alert(array_length); //Output will be 5 as employee has 5 element.
      alert(find_string);  //Output will be 2 as Neeraj is the 3rd element but Array index starts from 0

      //Convert employee Array into String as with the help of toString() method
      alert(employee.toString()); //Output will be Vishal,Kumar,Neeraj,Pune,9876512345
   }
</script>