I write this to complete the Freecodecamp asssignment. This page very helpful Thanks aksonai for bringing me here

Matches most expressions, doesn't match keywords like new or throw or lambdas.

Capture details of file sizes and names from a ls listing from WinSCP

Regex match markdown link

Remove deprecated parameters

Insert "|tracks=" before the first occurrence

Turn comma separated values in three deprecated parameters into template calls. (timestamp not considered yet)

Regex for the gvsbuild tool to remove a trailing number from a project name.

Detect internal links in page

Delete spaces at beginning or end of a string

Detect space kernel between characters

Delete spaces between words only

parses all valid NDC codes with or without hyphens

Public view for my collection

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A proof of concept regex that captures dates and date ranges with a variety of separators. Works with both DMY and MDY, and if one is not needed, it can be easily deleted from the regex. The full variety of months needs to be implemented by the programmer themselves since developing it in regex101...

Match Base64 data stream inside CSS file (WOFF/WOFF2)

a pattern to detect telegram username link or tag

Regex to captures paths starting with numbers

Parse a WKT POINT string into longitude and latitude values