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Javascript String - localeCompare() Method

4/6/14

Description:

This method returns a number indicating whether a reference string comes before or after or is the same as the given string in sort order.

Syntax:

string.localeCompare( param )
Here is the detail of parameters:
  • param : A string to be compared with string object.

Return Value:

  • 0 : It string matches 100%.
  • 1 : no match, and the parameter value comes before the string object's value in the locale sort order
  • -1 : no match, and the parameter value comes after the string object's value in the locale sort order

Example:

<html>
<head>
<title>JavaScript String localeCompare() Method</title>
</head>
<body>
<script type="text/javascript">
var str1 = new String( "This is beautiful string" );
var index = str1.localeCompare( "XYZ" );
document.write("localeCompare first :" + index ); 

document.write("<br />" ); 

var index = str1.localeCompare( "AbCD ?" );
document.write("localeCompare second :" + index ); 

</script>
</body>
</html>
This will produce following result:
localeCompare first :-1
localeCompare second :1  

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