Prototype - truncate() Method

Quiz

This method truncates a string to the given length and appends a suffix to it (indicating that it is only an excerpt).

If unspecified, the length parameter defaults to 30 and the suffix to "...".

Syntax

string.truncate([length = 30[, suffix = '...']]) ;

Return Value

Returns a truncated string.

Example

<html>
   <head>
      <title>Prototype examples</title>
      <script type = "text/javascript" src = "/javascript/prototype.js"></script>
      
      <script>
         function showResult() {
            var str = 'A random sentence whose length exceeds 30 characters.';
            alert("str.truncate() : " + str.truncate() );
            alert("str.truncate( 10 ) : " + str.truncate(10) );
            alert("str.truncate( 10, '...') : " + 
            str.truncate(10, '...') );
         }
      </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

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