JavaScript to search for strings and return search results to strings _javascript tips

This example describes a method for JavaScript search strings and returning search results to a string. Share to everyone for your reference. Specifically as follows:

The JavaScript action string comes with a match method for searching the string, returns the search string if the specified string is found, and returns the Null,match method if not found case sensitive

<! DOCTYPE html>
 

return Result:

World
Null
Null
world!

I hope this article will help you with your JavaScript programming.