JQueryTips (3) Changes to elements in the $ () package set _ jquery

After the elements in the JQuery package set are selected from the beginning, you can use a series of methods provided by JQuery to expand, modify, filter, and delete the elements in the package set. find () the VSfilter () method is easy to mix.
The filter method filters the current internal elements. This method accepts two parameters: a function that returns bool, or a JQuery selection expression, the elements in the package set are smaller than or equal to the elements in the current package set, and the elements contained are a subset of the elements in the original package set:

The Code is as follows:

The one

The two

The three