jQuery | #id Selector

Last Updated : 27 Feb, 2019

The #id selector specifies an id for an element to be selected. It should not begin with a number and the id attribute must be unique within a document which means it can be used only one time.

Syntax:

$("#id")

Parameter:

id: An element’s specific id.

Example-1:

<!DOCTYPE html>
<html>
  
<head>
    <script src=
"https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js">
  </script>
     
  <script>
    $(document).ready(function() {
    $("#Geeks").css("background-color","red");
      });
  </script>
</head>
  
<body>
  
    <h1>GEEKS FOR GEEKS</h1>
  
    <p id="Geeks">jQuery|#id selector
  </p>
  
</body>
  
</html>

Output:

Example-2:

<!DOCTYPE html>
<html lang="en">
  
<head>
    <meta charset="utf-8">
    <title>ID</title>
    <style>
        div {
            width: 100px;
            height: 100px;
            float: left;
            padding: 10px;
            margin: 10px;
            background-color: pink;
        }
    </style>
    <script src=
"https://code.jquery.com/jquery-1.10.2.js">
  </script>
</head>
  
<body>
  
    <div id="DIV1">
        <p>id="DIV1"</p>
    </div>
    <div id="DIV2">id="DIV2"</div>
  
    <script>
        $("#DIV2").css("border",
                       "2px solid yellow");
    </script>
  
</body>
  
</html>

Output:

Supported Browsers:

Google Chrome
Mozilla Firefox
Edge
Safari
Opera

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jQuery | #id Selector