Prototype - Object isArray() Method

This method returns true if obj is an array, false otherwise.

Syntax

Object.isArray(obj);

Return Value

Returns true if passed object is an array otherwise returns false.

Example

<html>
   <head>
      <title>Prototype examples</title>
      <script type = "text/javascript" src = "/javascript/prototype.js"></script>
      
      <script>
         function showResult() {
            var o1 = [1,2,3,4,5];
            var o2 = {name:"prototype", version:1.6};
            alert( "Object.isArray(o1): " + Object.isArray(o1) );
            alert( "Object.isArray(o2): " + Object.isArray(o2) );
         }
      </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_basic_object.htm