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.
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 »