How to get sibling nodes in jquery

JQuery is an excellent Javascript library that can simplify DOM operations and quickly find and operate HTML elements in the page, including sibling nodes.

Get sibling nodes

In HTML, sibling nodes refer to sibling elements under the same parent element. Their text contents are not necessarily related, but they only belong to the same parent element. . In JQuery, you can obtain sibling nodes through some methods. The most commonly used methods are as follows:

1. siblings() method: The siblings() method returns all elements at the same level as the current element, excluding the current element. itself.

For example, suppose there is the following HTML code:

<ul>
  <li>Item 1</li>
  <li id="current">Item 2</li>
  <li>Item 3</li>
  <li>Item 4</li>
</ul>

There is an element with an id of "current", we can get all the elements at the same level as it through the following code:

$("#current").siblings();

This code will return a JQuery object containing the elements "Item 1", "Item 3" and "Item 4". If you need to get a specific sibling element, you can use the parameters of the sibling() method.

2. next() method: The next() method gets the first sibling element after the current element.

For example, in the previous example, we can get the element "Item 3" through the following code:

$("#current").next();

3. prev() method: prev() method get The first sibling element before the current element.

For example, in the previous example, we can get the element "Item 1" through the following code:

$("#current").prev();

Summary

Through JQuery's siblings() , next() and prev() methods to easily obtain sibling nodes. Using these methods, you can quickly query and operate on elements. However, it should be noted that these methods only apply to elements at the same level. If you need to query elements at other levels, you need to use other search methods.

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