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jQuery :even Selector

Posted in jQuery Tutorial
Updated on May 19, 2024
By Mari Selvan
👁️ 51 - Views
⏳ 4 mins
💬 1 Comment
jQuery :even Selector

Photo Credit to CodeToFun

🙋 Introduction

jQuery provides a plethora of selectors to manipulate and interact with HTML elements effortlessly. Among these selectors, the :even selector stands out as a powerful tool for targeting elements based on their index within a selection.

In this comprehensive guide, we'll explore the usage of the jQuery :even selector with detailed examples to help you harness its potential in your web development projects.

🧠 Understanding :even Selector

The :even selector allows you to select elements with an even index within a set of matched elements. This can be particularly useful when you want to apply styles or perform actions on alternate elements or specific patterns within a list or group of elements.

💡 Syntax

The syntax for the :even selector is straightforward:

syntax.js
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$("selector:even")

📝 Example

  1. Selecting Even-indexed Elements:

    Consider a scenario where you have a list of elements, and you want to select and apply styles to elements with even indices:

    index.html
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    <ul>
      <li>Item 1</li>
      <li>Item 2</li>
      <li>Item 3</li>
      <li>Item 4</li>
      <li>Item 5</li>
    </ul>
    example.js
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    $("li:even").css("color", "blue");

    This code will change the text color of elements with even indices (Item 2 and Item 4) to blue.

  2. Alternating Background Colors:

    You can use the :even selector to create alternating background colors for table rows or list items:

    index.html
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    <ul>
      <li>Item 1</li>
      <li>Item 2</li>
      <li>Item 3</li>
      <li>Item 4</li>
      <li>Item 5</li>
    </ul>
    example.js
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    li:nth-child(even) {
      background-color: lightgray;
    }

    This CSS rule will set a light gray background color for list items with even indices.

  3. Applying Styles to Even-numbered Inputs:

    Suppose you have a form with input fields, and you want to style the input fields with even indices:

    index.html
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    <input type="text">
    <input type="text">
    <input type="text">
    <input type="text">
    example.js
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    $("input:text:even").css("border-color", "green");

    This code will change the border color of input fields with even indices to green.

  4. Combining with Other Selectors:

    You can combine the :even selector with other jQuery selectors to target specific elements more precisely. For example, you can select even-indexed checkboxes within a form:

    example.js
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    $("form input[type='checkbox']:even").prop("checked", true);

    This code will check every even-indexed checkbox within a form.

🎉 Conclusion

The jQuery :even selector is a versatile tool for targeting elements based on their position within a selection. Whether you need to style alternate elements, apply patterns to a list, or perform actions on specific indices, this selector provides an efficient solution.

By mastering its usage, you can enhance the interactivity and aesthetics of your web pages effortlessly.

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Author

author
👋 Hey, I'm Mari Selvan

For over eight years, I worked as a full-stack web developer. Now, I have chosen my profession as a full-time blogger at codetofun.com.

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