jQuery :eq() Selector

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Purpose: The :eq() selector is used to select the element at a specified index within a matched set of elements. Indexing: The index is zero-based, meaning the first element has an index of 0. Usage: It is useful when you need to target a specific element out of a group of matched elements based on its position. Return Value: Returns a jQuery object containing the element at the specified index.

Syntax

Following is the syntax of jQuery :eq() Selector −

$(":eq(index)")

Parameters

Here is the description of the above syntax −

  • index: The zero-based index of the element to select.

Example 1

In the following example, we are using the jQuery :eq() Selector to select the paragraph element with index "2" −

<html>
<head>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
    <script>
        $(document).ready(function(){
            $("p:eq(2)").css("background-color", "yellow");
        });
    </script>
</head>
<body>
    <p>Paragraph 1</p>
    <p>Paragraph 2</p>
    <p>Paragraph 3</p>
    <p>Paragraph 4</p>
</body>
</html>

After executing the above program, the paragraph element with index "2" will be highlighted with yellow background color.

Example 2

In this example, we are selecting the list item with index "1" −

<html>
<head>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
    <script>
        $(document).ready(function(){
            $("li:eq(1)").css("background-color", "yellow");
        });
    </script>
</head>
<body>
    <ul>
        <li>List Item 1</li>
        <li>List Item 2</li>
        <li>List Item 3</li>
        <li>List Item 4</li>
    </ul>
</body>
</html>

After executing the above program, the list item with index "1" will be highlighted with yellow background color.

Example 3

Here, we are selecting the <div> element with index "3" −

<html>
<head>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
    <script>
        $(document).ready(function(){
            // Select and hide the fourth div element (index 3)
            $("div:eq(3)").hide();
        });
    </script>
</head>
<body>
    <div>Div 1</div>
    <div>Div 2</div>
    <div>Div 3</div>
    <div>Div 4</div>
</body>
</html>

After executing the above program, the selected element will be highlighted with yellow background color.

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