Native javascript implementation of methods to obtain all descendant elements under a specified element_javascript skills

The example in this article describes the method of obtaining all descendant elements under a specified element using native javascript. I would like to share it with you for your reference. The specific implementation method is as follows:

The loop and recursion methods commonly used in the past are very troublesome. Here is a relatively simple method to achieve this function using native javascript methods.
The code example is as follows:

• Element 1


• Element 2


• Element Three

The above code implements our requirements. The parameter asterisk represents a wildcard character, which can match all types of tags.
The calling object of the getElementsByTagName() method determines its search scope.

I hope this article will be helpful to everyone’s JavaScript web programming design.