The example in this article describes the method of JavaScript searching for a string and returning the search results to the string. Share it with everyone for your reference. The details are as follows:
The JavaScript operation string has a match method for searching the string. If the specified string is found, the search string is returned. If not found, null is returned. The match method is case-sensitive
<!DOCTYPE html> <html> <body> <script> var str="Hello world!"; document.write(str.match("world") + "<br>"); document.write(str.match("World") + "<br>"); document.write(str.match("worlld") + "<br>"); document.write(str.match("world!")); </script> </body> </html>
Return results:
world
null
null
world!
I hope this article will be helpful to everyone’s JavaScript programming design.