Regex for Ethereum Addresses

Regex for Ethereum Addresses

A regular expression for matching Ethereum addresses must check for a leading [r]0x[/r] followed by a random string of 40 hexadecimal characters (lowercase a-f, uppercase A-F, and numbers 0-9). These expressions are not case sensitive, although a capitalized checksum version exists that refers to the same account but provides an added layer of security.

Regex for Bitcoin Addresses

Regex for Bitcoin Addresses

What regular expressions can be used to match Bitcoin addresses? A regular expression for validating Bitcoin addresses must check for a leading 1 or 3, ensure that it contains 27 to 34 alphanumeric characters, and ensure it doesn’t contain any ambiguous characters like O or 0. It must also be able to validate newer Segwit … Read more »