jQuery descender selector (X Y) is used to select all elements matched by “Y” that are child, grandchild, great-grandchild, great-great-grandchild..(any levels deep) of a “X” element.

For example,

  • $(‘#container div’) – selects all elements matched by <div> that are descendants of an element that has an id of container.
  • $(‘form input’) – selects all elements matched by <input> that are descendants of an element matched by <form>.

jQuery Example

In this example, it used the jQuery descendant selector to add a “red border” to all the <input> fields that are descendant of a <form> element.

<html>
<head>
<title>jQuery descendant selector example</title>
 
<script type="text/javascript" src="jquery-1.3.2.min.js"></script>
 
 <style type="text/css">
  div { padding:8px 0px 8px 8px; }
 </style>
 
 
</head>
 
<script type="text/javascript">
 
$(document).ready(function(){
 
	$("form input").css("border", "2px solid red");
 
});
 
</script>
<body>
 
<h1>jQuery child selector example</h1>
 
<form>
 
	<label>TextBox 1 (Child) : </label><input name="textbox1">
 
	<div class="level1">
		<label>TextBox 2 (GrandChild) : </label><input name="textbox2">
	</div>
 
	<div class="level1">
	   <div class="level2">
   	     <label>TextBox 3 (Great GrandChild) : </label><input name="textbox3">
	   </div>
	</div>
 
	<label>TextBox 4 (Child) : </label><input name="textbox4">
 
</form>
 
<div> I'm form siblings #1 - DIV</div>
 
<p> I'm form siblings #2 - P </p>
 
<div> I'm form siblings #3 - DIV </div>
 
<p> I'm form siblings #4 - P </p>
 
</body>
</html>
Try Demo
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