Jquery searches for parent and child elements (Personal Experience) _ jquery

For friends who use js or jquery to find parent and child elements that are confusing, refer to this article because it is a personal summary, it is easier to use js or jquery to find parent and child elements. However, it is always confusing to use it. I have summarized it here. It will be easier to use it in the future.

Here, jquery looks up the method used by the parent element: closest () parents () parent ()

Find () children ()

Js uses the children [] attribute.

Html code

The Code is as follows:

Jquery searches for child elements of a parent Element

Section 1: Find the parent Element

11 closest () looks up the nearest element (returns a jQuery object with zero or one element)

21 parent () method

31 parent ("selector") Method

Section 2: Search for child elements

Find the td find () method of table 2

Find the td children () method of table 2

Search for the children [] attribute of js

Tbody2222

Js Code:

The Code is as follows: