What is the method to determine whether an object is a jquery object?

How to determine whether an object is a jquery object: first create the panfun function; then use the id (mytestid) method to obtain the p tag object; finally use instanceof to determine.

The operating environment of this tutorial: Windows 10 system, jquery version 2.2.4. This method is suitable for all brands of computers.

The specific method is as follows:

(Recommended tutorial: jquery video tutorial)

Create a new html file and name it test .html.

In the test.html file, use the p tag to create a line of text with the text content "This is the text of the test.".

In the test.html file, set the id attribute of the p tag to mytestid, which is mainly used to obtain the p object through this id below.

In the test.html file, use the button tag to create a button with the button name "Is it a jquery object".

In the test.html file, bind the onclick event to the button button. When the button is clicked, the panfun() function is executed.

In the js tag, create the panfun() function. Within the function, use the $ symbol to obtain the p tag object through id (mytestid), and use instanceof to judge through the if statement. Whether res is jQuery, if so, it will prompt "You clicked the jquery object".

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