using this regular expression you can implement usa number validation.

web validation

web validation

This is the complete Sign-In with Ethereum RegExp implementation

maybe useful if you want to enrich e.g. markup with xml fragments and analyse them (e.g. joplinApp with RestApi)

css var regex

extract id in filename psd from path ftp

codigo da glosa quebrada, descricao quebrada e sem gp até o limite inferior

It checks for time in 24hr format with colon separator

Parse a WKT POINT string into longitude and latitude values

Regex to captures paths starting with numbers

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

显示分组

Public view for my collection

parses all valid NDC codes with or without hyphens

Detect space kernel between characters

Delete spaces between words only

Delete spaces at beginning or end of a string

Detect internal links in page

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