regex for supporting both default link and links with number sign (#)

Question

I need a regex to validate both default link formats in client side. For example http://example.com and #myInternalLink are valid. I wrote this but not working.

^(((http|https)://(([A-Z0-9][A-Z0-9_-])(.[A-Z0-9][A-Z0-9_-])+)(?::\d{1,5})?(?:$|[?/#])) | (#([A-Z0-9][A-Z0-9_-]*)))

Already answered question just solves default link formats.I want to validate both http://example.com and #myInternalLink in a same regex

I think both `http:://example.com` and `#myInternalLink` are not valid url... — apple apple, Mar 16 '19 at 09:12
`http:://` is not a valid protocol. `http://` is. `#myInternalLink` is a fragment - not a URL. A fragment can be compared to a street number - which is not a full address. — max, Mar 16 '19 at 09:48

score -1 · Answer 1 · edited Oct 07 '21 at 13:28

-1

Have a look at https://www.rfc-editor.org/rfc/rfc3986 for what valid URLs are. In regards to your regular expression, have a look at What is a good regular expression to match a URL?

edited Oct 07 '21 at 13:28

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answered Mar 16 '19 at 09:37

D.R.

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Why the downvote? – D.R. Mar 16 '19 at 11:43

regex for supporting both default link and links with number sign (#)

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