https://www.devcurry.com/2010/07/validate-us-zip-code-using-javascript.html
Validate US Zip Code using JavaScript
Web Developer Tutorials
validate uszip codeusingjavascript
https://regex101.com/library/xH5sD3?orderBy=HIGHEST_SCORE&search=&filterFlavors=pcre&filterFlavors=dotnet&filterFlavors=rust&filterFlavors=python&filterFlavors=java
regex101: validate US (5 & 9 digit) ZipCodes and CA PostalCodes
Search, filter and view user submitted regular expressions in the regex library. Over 20,000 entries, and counting!
validate usdigitzipcodesca