1. $(document) converts the document object into jquery
2. Obtain all hyperlink objects and add onclick events; In fact, the underlying jquery object obtains an array of each tag, so we do not need to loop
3. Conversion between jquery objects and dom objects
4. jquery solves the problem of whether the id value exists
5. It is stipulated in JavaScript that when you want to operate a CSS attribute, you must remove the ‘-’ in the attribute and capitalize the last letter; for example: background-color should be changed to backgroundColor
6. Selectors are also used in jquery to manipulate various elements . It inherits the design concept of CSS, but carries it forward;
7. Several writing forms of jquery
1> Method 1
2> Method 2
3> Method 3
The above methods are the same
I hope this article will be helpful to everyone learning jquery programming.