descendantOf :: Element |
As descendantOf() internally applies $() to ancestor, it accepts indifferently an element or an element’s id as its second argument.
Examples
<div id="australopithecus"> <div id="homo-herectus"> <div id="homo-sapiens"></div> </div> </div>
$('homo-sapiens').descendantOf('australopithecus'); // -> true
$('homo-herectus').descendantOf('homo-sapiens'); // -> false
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Prototype API 1.5.0 - prototypejs.org