Prototype - remove() Method

This method removes keys from a hash and returns their values. This method is not available since v1.6.0.

Syntax

hash.remove(key1, key2...);

Return Value

Returns the resultant merged hash.

Example

<html>
   <head>
      <title>Prototype examples</title>
      <script type = "text/javascript" src = "/javascript/prototype.js"></script>
      
      <script>
         function showResult() {
            var h = new Hash({ a:'apple', b:'banana', c:'coconut' });
            alert("Before removing elements : " + h.inspect() );
            
            // Remove two elements.
            h.remove('a', 'c');
            alert("After removing elements : " + h.inspect() );
         }
      </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_hash_processing.htm