JavaWeb learning notes (IV) jquery

1、 Introduction to jquery

2、 Preparations before using jquery

3、 Core function $()

4、 Differences between jQuery objects and DOM objects

1. First of all, know what is a jQuery object and what is a DOM object

2. What is the essence of jQuery

JQuery object is an array of DOM objects + a series of function functions provided by jQuery.

3. Use difference

4. Commutation conversion

5、 JQuery selector

1. Basic selector

2. Level selector

3. Filter selector

4. Content filter

5. Attribute filter

6. Form filter

7. Form object properties filter