JQuery Not Selector Example

This tutorial explains usage of the not selector in jQuery. The not selector selects all the elements that do not match with specified element with in the web page. All the elements except the specified elements are filtered from the set of matching elements. It helps in filtering certain condition from jQuery selector. The elements do not match the certain criteria are returned from the selection and those elements will be removed. It is also known as negation selector. Lets look at the simple example in this tutorial that explains the use of no selector.

JQuery Not Selector Syntax

$(“:not(selector)”)

It has parameter called selector is a required parameter which selects all the elements that do not match specified element.

JQuery Not Selector Example

<!doctype html>
<head>
<title>JQuery Not Selector</title>
<script src="http://code.jquery.com/jquery-1.11.0.min.js"></script>
</head>
<h2>JQuery Not Selector Example</h2>
<style>
   div{
      width:150px;
      height:50px;
      font-weight:bold;
      color:green;
</style>
<script type="text/javascript">
   $(document).ready(function(){
      $("#mybutton").click(function(){
        $("div:not(.myval2)").css("border","3px solid red");
      });
   });
</script>
<body>
   <div class="myval">This is First Line</div><br>
   <div class="myval1">This is Second line</div><br>
   <div class="myval2">This is Third line</div>
   <button id="mybutton">Click to see not selected element</button>
</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.
$(“#mybutton”).click(function()) line defines click method which occurs when an element is clicked.
$(“div:not(.myval2)”).css(“border”,”3px solid red”); line defines not selector which selects all the elements except the specified element. The selected elements display with red color border.