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How to Iterate Through Elements in Reverse Order with jQuery\'s .each()?

Susan Sarandon
Release: 2024-10-30 00:25:29
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How to Iterate Through Elements in Reverse Order with jQuery's .each()?

Iterating Elements Backwards with JQuery's .each()

In situations where you need to traverse elements in the reverse order in the DOM, JQuery's default .each() function may not suffice. Consider the following HTML:

<ul>
  <li>Item 1</li>
  <li>Item 2</li>
  <li>Item 3</li>
  <li>Item 4</li>
  <li>Item 5</li>
</ul>
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To select all the li elements and iterate them backward, we can use the following approach:

$.($("li").get().reverse()).each(function() { /* ... */ });
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Here's how it works:

  1. Select the li elements: $("li").
  2. Convert the result to a native array: get() returns the elements as an array.
  3. Reverse the array: reverse() creates a new array with the elements in reverse order.
  4. Wrap the reversed array back in a jQuery object: $() allows us to use JQuery functions on the reversed array.
  5. Apply the .each() function to iterate the elements in reverse order.

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