jQuery | :nth-last-child() Selector

Last Updated : 22 Feb, 2019

The :nth-last-child() selector is used to select all elements those are the n^th last child of their parent. The counting of element starts from last element.

Syntax:

:nth-last-child(n|even|odd|formula)

Parameters: The :nth-last-child() selector contains parameters which are listed below:

n: It holds the child index number of selected element. The counting starts from end. The index number of first child is 1.
even: It selects all even child element.
odd: It selects all odd child element.
formula: It is used to specify the formula to select the child element. The formula can be in form of (an + b).

Below examples illustrate the :nth-last-child() selector in jQuery:

Example 1: This example changes the background-color to green and text-color to white, of the second last heading of their parents (div tags).

<!DOCTYPE html>  
<html>  
    <head> 
        <title> 
            jQuery | :nth-last-child() Selector
        </title>
          
        <script src=
"https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js">
        </script>
          
        <!-- Script to use nth-last-child selector -->
        <script>
            $(document).ready(function() {
                $("h4:nth-last-child(2)").css({
                    "background-color": "green", 
                    "color": "white"
                });
            });
        </script>
          
        <style>
            option {
                font-weight: bold;
                font-size: 25px;
                color: green;
            }
            select {
                font-weight: bold;
                font-size: 25px;
                color: green;
            }
        </style>
    </head>
      
    <body style="text-align:center;">  
        <h1>  
            jQuery | :nth-last-child() Selector
        </h1> 
          
        <div style= "border: 1px solid blue;">
            <h4>The first heading in first div.</h4>
            <h4>The second last heading in first div.</h4>
            <h4>The last heading in first div.</h4>
        </div><br>
          
        <div style= "border: 1px solid blue;">
            <h4>The first heading in second div.</h4>
            <h4>The second last heading in first div.</h4>
            <h4>The last heading in second div.</h4>
        </div>           
    </body>  
</html>       

Output:

Example 2: This example changes the background-color to green and text-color to white, of the second last heading of < body > tag.

<!DOCTYPE html>  
<html>  
    <head> 
        <title> 
            jQuery | :nth-last-child() Selector
        </title>
          
        <script src=
"https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js">
        </script>
          
        <!-- Script to use nth-last-child selector to 
                select nth last odd elements -->
        <script>
            $(document).ready(function() {
                $("h4:nth-last-child(odd)").css({
                    "background-color": "green", 
                    "color": "white"
                });
            });
        </script>
          
        <style>
            option {
                font-weight: bold;
                font-size: 25px;
                color: green;
            }
            select {
                font-weight: bold;
                font-size: 25px;
                color: green;
            }
        </style>
    </head> 
      
    <body style="text-align:center;">  
        <h1>  
            jQuery | :nth-last-child() Selector
        </h1> 
          
        <div>
            <h4>The first heading in body.</h4>
            <h4>The second last heading in body.</h4>
            <h4>The Third heading in body.</h4>
            <h4>The Fourth heading in body.</h4>
        </div>
    </body>  
</html>   

Output:

My Personal Notes

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