Javascript inArray

Javascript inArray concept is used to find whether given value is present in an array or not. Enter the value into textbox and find whether the given value is present in array or not.


  • You can verify whether the value entered in the textbox is present in an array.
  • Copy the code from the given textarea and use it.


Enter value into Textbox to check whether it is present in array.
The array has value from 1 to 10.


Javascript Code
<!-- Script by -->
<script type="text/javascript">
Array.prototype.inArray = function (value)
// Returns true if the passed value is found in the
// array. Returns false if it is not.
var i;
for (i=0; i < this.length; i++)
if (this[i] == value){return true;}
return false;
function cal(xx)
var arr= new Array(1,2,3,4,5,6,7,8,9,10);
alert("Your value is found in the Array");
{alert("Your value is not found in the Array");
<!-- Script by -->
  • Release Date - 07-01-2008
  • Get free version without ©copyright link for just $10/-
  • For customization of this script or any script development, mail to


  • Copy the above Javascript code into the
  • <head> tag of your file. 
  • Creating a HTML form using following code.
  • <form name=arra onSubmit="cal(arra.val.value)">
     <input type=text name=val size=12 style="border-color:blue;">
    <input type=submit name=cs value="Submit">
  • Here, the function "cal(form.val.value)" is called by passing the entered value in the textbox as argument. Then the function checks whether the argument passed is present in the array or not and returns message accordingly.
  • Copy the code into your page and use it.


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