Retrieves the width of the object relative to the layout or coordinate parent, as specified by the offsetParent property.
Syntax
| JavaScript | |
|---|
Property values
Type: Integer
the width, in pixels.
Remarks
You can determine the location, width, and height of an object by using a combination of the offsetLeft, offsetTop, offsetHeight, and offsetWidth properties. These numeric properties specify the physical coordinates and dimensions of the object relative to the object's offset parent.
For more information about how to access the dimension and location of objects on the page through the Dynamic HTML (DHTML) Document Object Model (DOM), see Measuring Element Dimension and Location with CSSOM in Internet Explorer 9.
Examples
This example adjusts the size of a clock's readout to fit the current width and height of the document.
<HTML>
<HEAD><TITLE>A Simple Clock</TITLE>
<SCRIPT LANGUAGE="JavaScript">
function startClock()
{
window.setInterval("Clock_Tick()", 1000);
Clock_Tick();
}
var ratio = 4;
function Clock_Tick()
{
var s = Date();
var t = s.substring(11,19);
var doc_height = document.body.offsetHeight;
var doc_width = document.body.offsetWidth;
if ((doc_height*ratio)>doc_width)
doc_height = doc_width / ratio;
document.all.MyTime.innerText = t;
document.all.MyTime.style.fontSize = doc_height;
}
</SCRIPT>
<BODY onload="startClock()">
<P ID="MyTime"> </P>
</BODY>
</HTML>
This example uses the offsetWidth property and the clientWidth property to show the different ways of measuring the object size.
<DIV ID=oDiv STYLE="overflow:scroll; width:200; height:100"> . . . </DIV> <BUTTON onclick="console.log(oDiv.clientWidth)">client width</BUTTON> <BUTTON onclick="console.log(oDiv.offsetWidth)">offset width</BUTTON>
See also
- a
- abbr
- address
- area
- article
- aside
- b
- bdo
- blockQuote
- body
- br
- button
- caption
- cite
- code
- col
- colGroup
- custom
- dd
- del
- div
- dl
- dt
- em
- embed
- fieldSet
- figcaption
- figure
- footer
- form
- head
- header
- hgroup
- hn
- hr
- html
- i
- iframe
- img
- input type=button
- input type=checkbox
- input type=file
- input type=hidden
- input type=image
- input type=password
- input type=radio
- input type=reset
- input type=submit
- input type=text
- ins
- kbd
- label
- legend
- li
- map
- mark
- nav
- object
- ol
- optGroup
- option
- p
- pre
- q
- rt
- ruby
- s
- samp
- section
- select
- small
- span
- strong
- sub
- sup
- table
- tBody
- td
- textArea
- tFoot
- th
- tHead
- tr
- u
- ul
- var
Build date: 11/28/2012
