JavaScript String - substring() Method


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Description

This method returns a subset of a String object.

Syntax

The syntax to use substr() is as follows −

string.substring(indexA, [indexB])

Argument Details

  • indexA − An integer between 0 and one less than the length of the string.

  • indexB − (optional) An integer between 0 and the length of the string.

Return Value

The substring method returns the new sub-string based on given parameters.

Example

Try the following example.

<html>
   <head>
      <title>JavaScript String substring() Method</title>
   </head>
   
   <body>
   
      <script type="text/javascript">
         var str = "Apples are round, and apples are juicy.";
         
         document.write("(1,2): "    + str.substring(1,2));
         document.write("<br />(0,10): "   + str.substring(0, 10));
         document.write("<br />(5): "      + str.substring(5));
      </script>
      
   </body>
</html>

Output

(1,2): p
(0,10): Apples are
(5): s are round, and apples are juicy. 

javascript_strings_object.htm

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