JQuery Has Selector Example

JQuery has selector specifies the elements that matches the specified element which contain at least one element. It selects the element set with descendent selector that matches the selector or DOM element passed in the document. If any of its descendent elements matches the selector, the element will be stored in the result. It creates new object from the set of matching elements.

JQuery Has Selector Syntax

$(“:has(selector)”)

It has parameter called selector which specifies element to be selected in the document.

JQuery Has Selector Example

<!doctype html>
<head>
<title>JQuery Has Selector</title>
<script src="http://code.jquery.com/jquery-1.11.0.min.js"></script>
</head>
<h2>JQuery Has Selector Example</h2>
<style>
   .one
   {
      border: 1px dotted green;
      color:red;
   }
</style>
<script>
   $(document).ready(function(){
      $("ul").has("li");
   });
</script>
<body>
   <ul>
      <li class="one">Hello World!!!</li>
      <li class="two">Welcome to JQuery.</li>
      <li class="one">It is JavaScript Library.</li>
      <li class="three">It is combination of HTML, CSS and JavaScript.</li>
   </ul>
</body>
</html>

As shown in the above program, we have used the code inside $(document).ready which is an event which fires up when document is ready. It will run once the page document object model is ready for JavaScript code to execute.
$(“ul”).has(“li”); line defines has selector that represents all the elements which matches specified selector.
When we run the above script, we will get list of items. The list uses class name to matches the elements in the DOM. Here, has selector represents all the elements that matches class name one. The matched elements will get display with red color and border with dotted green color.