JavaScript to get the page height (multiple browsers)

A little research on obtaining the visible window size of various browsers.

In my local test:

It can be used in IE, Firefox, and opera

Document. Body. clientwidth

Document. Body. clientheight

It is very simple and convenient.

In the company's projects:

Opera is still in use

Document. Body. clientwidth

Document. Body. clientheight

However, ie and Firefox use

Document.doc umentelement. clientwidth

Document.doc umentelement. clientheight

It turned out to be W3C standard in the cool http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd "> if you add this line of tag in the page

In ie:

Document. Body. clientwidth ==> body object width

Document. Body. clientheight ==> body object height

Document.doc umentelement. clientwidth ==> visible area width

Document.doc umentelement. clientheight => visible area height

In Firefox:

Document. Body. clientwidth ==> body object width

Document. Body. clientheight ==> body object height

Document.doc umentelement. clientwidth ==> visible area width

Document.doc umentelement. clientheight ==> visible area height?

In opera:

Document. Body. clientwidth ==> visible area width

Document. Body. clientheight ==> visible area height

Document.doc umentelement. clientwidth ==> Page Object width (that is, the width of the body object plus the margin width)

Document.doc umentelement. clientheight ==> Page Object height (that is, the height of the body object plus the margin height)

If W3C standards are not defined, ie is:

Document.doc umentelement. clientwidth ==> 0

Document.doc umentelement. clientheight => 0

Firefox:

Document.doc umentelement. clientwidth ==> Page Object width (that is, the width of the body object plus the margin width)

Document.doc umentelement. clientheight ==> Page Object height (that is, the height of the body object plus the margin height)

Opera:

Document.doc umentelement. clientwidth ==> Page Object width (that is, the width of the body object plus the margin width)

Document.doc umentelement. clientheight ==> Page Object height (that is, the height of the body object plus the margin height)

It is really troublesome. In fact, from the perspective of development, it is much easier to reduce the number of objects and methods and not to use the latest standards.