Prototype - clear() Method

This method clears the array (makes it empty).

Syntax

array.clear();

Return Value

Returns an empty array.

Example

<html>
   <head>
      <title>Prototype examples</title>
      <script type = "text/javascript" src = "/javascript/prototype.js"></script>
      
      <script>
         function showResult() {
            var guys = ['Sam', 'Justin', 'Andrew', 'Dan'];
            alert("Before using clear" );
            
            guys.each(function(item) {
               alert(item );
            });
            guys.clear();
            alert("After using clear" );
            
            guys.each(function(item) {
               alert(item );
            });
         }
      </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_array_processing.htm