Prototype - getWidth() Method


Advertisements

This method finds and returns the computed width of element.

This method returns correct values on elements whose display is set to none either in an inline style rule or in an CSS stylesheet.

Note that the value returned is a number only although it is expressed in pixels.

Syntax

element.getWidth();

Return Value

It returns the computed width of an element.

Example

<html>
   <head>
      <title>Prototype examples</title>
      <script type = "text/javascript" src = "/javascript/prototype.js"></script>
      
      <script>
         function showResult() {
            var width = $('rectangle').getWidth();
            alert("Element width is " +  width );
         }
      </script>
   </head>

   <body>
      <p>Click the button to see the result.</p>
      
      <div id = "rectangle" 
         style = "font-size: 10px; width: 20em; height 10em">
         <p>This is the paragraph.</p>
      </div>
      <br />
      
      <input type = "button" value = "showResult" onclick = "showResult();"/>
   </body>
</html>

Output

prototype_element_object.htm
Advertisements