DOM Traversal Methods

.height()
Gets the current computed height for the first element in the set of
matched elements.
Parameters
None.
.height()
Return Value
The height of the element, in pixels.
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Chapter 4
Description
The difference between .css('height') and .height() is that the latter returns
a unit-less pixel value (for example, 400) while the former returns a value with
units intact (for example, 400px). The .height method is recommended when an
element's height needs to be used in a mathematical calculation.
.height(value)
Sets the CSS height of each element in the set of matched elements.
.height(value)
Parameters
•
value: An integer representing the number of pixels, or an integer with an
optional unit of measure appended
Return Value
The jQuery object, for chaining purposes.
Description
With .height('value'), unlike with .css('height','value'), the value can be
either a string (number and unit) or a number. If only a number is provided for the
value, jQuery assumes a pixel unit.