hex
$hex
Validates that a string contains only valid hexadecimal characters (0-9, a-f, A-F). Does not require or validate a "0x" prefix - the value should be the raw hex digits.
Validates that a string contains only valid hexadecimal characters (0-9, a-f, A-F). Does not require or validate a "0x" prefix - the value should be the raw hex digits.