Have a question about JavaScript replace using RegExp

Asked Oct 25 '18 at 21:51

Active Oct 25 '18 at 21:51

Viewed 17 times

I tried following the documentation on https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replace, but I could't figure out what is the below code is doing.

I know it is doing a replace with RegExp, but can't figure out what is being replaced.

str.replace(/(^\s*)|(\s*$)/gi,"")

Thanks.

asked Oct 25 '18 at 21:51

Jason

Try to put some spaces around the input string... – Adriano Repetti Oct 25 '18 at 21:52
@Adriano Repetti can you explain? I want to learn. Thanks. – Jason Oct 25 '18 at 21:53
See explanation [here](https://regex101.com/r/163rWD/2). – Wiktor Stribiżew Oct 25 '18 at 21:53
It simply trims the input string (removes Spaces at start and end). – Poul Bak Oct 25 '18 at 21:53
@Wiktor Stribiżew thank you, I have a lot of reading to do – Jason Oct 25 '18 at 22:01
@Poul Bak thank you – Jason Oct 25 '18 at 22:03

0 Answers0