src code

instance method Element#getWidth

Element#getWidth() → Number

Returns the 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.

For performance reasons, if you need to query both width and height of element, you should consider using Element.getDimensions instead.

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

Examples
<div id="rectangle" style="font-size: 10px; width: 20em; height: 10em"></div>

Then:

$('rectangle').getWidth();
// -> 200

This method can be called either as an instance method or as a generic method. If calling as a generic, pass the instance in as the first argument.