How to use child in jquery

Usage of child in jquery: 1. Create an html, jquery sample file; 2. Define the parent element as "parent"; 2. Get all direct child elements through the ".children()" method and save them in in the "hildElements" variable; 3. Just output the result through the console.

Operating system for this tutorial: Windows 10 system, php8.1.3 version, Dell G3 computer.

In jQuery, you can use the .children() method to get the direct child elements of the matching element. This method returns a jQuery object containing all direct child elements.

The following is a sample code using the .children() method:

HTML code:

<div id="parent">
  <div class="child">Child 1</div>
  <div class="child">Child 2</div>
  <div class="child">Child 3</div>
</div>

jQuery code:

// 选择父元素并获取其直接子元素
var parentElement = $('#parent');
var childElements = parentElement.children();
// 遍历并操作子元素
childElements.each(function() {
  var childText = $(this).text();
  console.log(childText);
});
// 选择特定的子元素
var firstChild = parentElement.children('.child:first');
console.log(firstChild.text());

In the above example, the parent element #parent is first selected and then all direct child elements are obtained using the .children() method and the result is saved in the childElements variable. Iterate through the child elements through the .each() method and output the text content of each child element.

In addition, the example also demonstrates how to select specific child elements. Using the .children('.child:first') expression, you can select the first child element with a class name of .child and output its text content.

Through the .children() method, you can easily obtain and operate the direct child elements of an element. You can use other jQuery methods to further manipulate and process child elements according to your needs.

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