Lesson 3: code for modifying element attributes and content _ jQuery

The preceding section describes how to filter required elements. After an element is obtained, perform operations on it. 1. Operation attributes
The preceding section describes how to filter required elements. After an element is obtained, perform operations on it. A common requirement is to traverse the obtained Element Set and perform an operation on each element. The function provided by jQuery is
Each (iterator), where iterator is a function that accepts an integer as a parameter to represent the nth element. Let's look at a simple example.

The Code is as follows:

JQuery Operation