What are jquery sibling nodes?

jquery sibling nodes refer to all child elements under the same parent element, but not including itself. By using the sibling node selector, you can quickly and accurately select the desired element. When writing jQuery code, it is very important to choose the correct sibling node selector. In actual development, sibling node selectors have many uses. For example, when you need to find and process sibling elements, you can use these selectors to achieve .

The operating system of this tutorial: Windows 10 system, jQuery3.6.0 version, Dell G3 computer.

Sibling nodes refer to all child elements under the same parent element, excluding itself.

jQuery provides many selectors to select sibling nodes. The following are commonly used sibling node selectors:

1. .next(): Select the next sibling element node. If the element is not a sibling node, the selector returns the empty set.

2. .nextAll(): Select all subsequent sibling element nodes.

3. .prev(): Select the previous sibling element node. If the element is not a sibling node, the selector returns the empty set.

4. .prevAll(): Select all previous sibling element nodes.

5. .siblings(): Select all sibling element nodes.

Next, we will explain the usage of these sibling node selectors in detail with code examples.

For example the following HTML code:

<div class="parent">
  <div class="first"></div>
  <div class="second"></div>
  <div class="third"></div>
  <div class="fourth"></div>
</div>

We can use the following code to select the first sibling node:

$('.first').next();

This will return a jQuery object containing the class name "second" tag element.

We can also select all sibling element nodes:

$('.first').siblings();

This will return a jQuery object containing label elements with class names "second", "third", and "fourth" .

Similarly, we can also select the previous or all previous sibling nodes:

$('.fourth').prev(); // 返回类名为"third"的标签元素
$('.fourth').prevAll(); // 返回类名为"third"和"second"的标签元素

The above is an example based on the class selector. We can also use the id selector to select sibling nodes:

<div id="parent">
  <div id="first"></div>
  <div id="second"></div>
  <div id="third"></div>
  <div id="fourth"></div>
</div>

$('#first').next(); // 返回id为"second"的标签元素
$('#first').siblings(); // 返回id为"second"、"third"、"fourth"的标签元素

In actual development, sibling node selectors have many uses. For example, if you need to find and process sibling elements, you can use these selectors to implement them.

When writing jQuery code, it is very important to choose the correct sibling node selector. Although they are very simple, they allow us to quickly and accurately select the elements we want.

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