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jQuery | width()

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  • Last Updated : 13 Feb, 2019
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The width() is an inbuilt function in JavaScript which is used to check the width of an element. It does not check the padding, border and margin of the element.
Syntax:

$("param").width()

Parameters: Here parameter is “param” which is the class or id of the element whose width is to be extracted.
Return values: It returns the width of the selected element.

jQuery code to show the working of this function:

Code #1:




<html>
  
<head>
                 /3.3.1/jquery.min.js"></script>
    <script>
        $(document).ready(function() {
            $("button").click(function() {
                var msg = "";
                msg += "Width of div: " + $("#demo").width();
                $("#demo").html(msg);
            });
        });
    </script>
    <style>
        #demo {
            height: 150px;
            width: 350px;
            padding: 10px;
            margin: 3px;
            border: 1px solid blue;
            background-color: lightgreen;
        }
    </style>
</head>
  
<body>
    <div id="demo"></div>
    <button>Click Me!!!</button>
    <p>Click on the button and check the width of the
       element (excluding padding).</p>
</body>
  
</html>

Output:
Before clicking on the button-

After clicking on the button-

jQuery also include innerWidth() method i.e, it also used to check inner width of the element including padding.
Syntax:

$("param").innerWidth()

Parameters: Here parameter “param” is the class or id of the element whose width to be extracted.

Return value: It returns the width of the selected element.
Code #2:




<html>
  
<head>
                 jquery/3.3.1/jquery.min.js"></script>
    <script>
        $(document).ready(function() {
            $("button").click(function() {
                var msg = "";
                msg += "Inner width of div: " + $("#demo")
                         .innerWidth() + "</br>";
                $("#demo").html(msg);
            });
        });
    </script>
</head>
<style>
    #demo {
        height: 150px;
        width: 350px;
        padding: 10px;
        margin: 3px;
        border: 1px solid blue;
        background-color: lightgreen;
    }
</style>
  
<body>
    <div id="demo"></div>
    <button>Click Me!!!</button>
    <p>Click on the button and check the innerWidth of
        an element(includes padding).</p>
</body>
  
</html>

Before clicking on the button-

After clicking on the button-


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