From http://www.w3schools.com (Copyright Refsnes Data)

JavaScript search() Method

String Object Reference JavaScript String Object

Definition and Usage

The search() method searches for a match between a regular expression and a string.

This method returns the position of the match, or -1 if no match is found.

Syntax

stringObject.search(regexp)

Parameter Description
regexp Required. A regular expression object. Read more about the RegExp object

Examples

Example 1

Perform a case-sensitive search:

<script type="text/javascript">

var str="Visit W3Schools!";
document.write(str.search("W3SCHOOLS"));

</script>

The output of the code above will be:

-1

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Example 2

Perform a case-insensitive search:

<script type="text/javascript">

var str="Visit W3Schools!";
document.write(str.search(/w3schools/i));

</script>

The output of the code above will be:

6

Try it yourself »

String Object Reference JavaScript String Object

From http://www.w3schools.com (Copyright Refsnes Data)