Prototype - include() Method

This method checks if the string contains a substring.

Syntax

string.include(substring);

Return Value

Returns a boolean value. If it finds subsrting then it returns true, otherwise false.

Example

<html>
   <head>
      <title>Prototype examples</title>
      <script type = "text/javascript" src = "/javascript/prototype.js"></script>
      
      <script>
         function showResult() {
            var str = 'Prototype framework';
            alert( "First Check :" + str.include('framework' ) );
            alert( "Second Check :" + str.include('No framework' ) );
         }
      </script>
   </head>

   <body>
      <p>Click the button to see the result.</p>
      <br />
      <br />
      <input type = "button" value = "Result" onclick = "showResult();"/>
   </body>
</html>

Output

prototype_string_processing.htm