:has() selector

Selects elements which contain at least one element that matches the specified selector.

The expression $( "div:has(p)" ) matches a <div> if a <p> exists anywhere among its descendants, not just as a direct child.

Because :has() is a jQuery extension and not part of the CSS specification, queries using :has() cannot take advantage of the performance boost provided by the native DOM querySelectorAll() method. For better performance in modern browsers, use $( "your-pure-css-selector" ).has( selector/DOMElement ) instead.

jQuery( ":has(selector)" )

version added: 1.1.4

Examples:

Adds the class "test" to all divs that have a paragraph inside of them.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>has demo</title>
  <style>
  .test {
    border: 3px inset red;
  }
  </style>
  <script src="https://code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
 
<div><p>Hello in a paragraph</p></div>
<div>Hello again! (with no paragraph)</div>
 
<script>
$( "div:has(p)" ).addClass( "test" );
</script>
 
</body>
</html>

Links:

http://api.jquery.com/has-selector

doc_jQuery

2016-03-27 13:48:23

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