\d{4}a digit, repeated exactly 4 times
-?optionally matches the literal - (4510 / 558 / 2D16)
\d{4}a digit, repeated exactly 4 times
-?optionally matches the literal - (4510 / 558 / 2D16)
\d{4}a digit, repeated exactly 4 times
-?optionally matches the literal - (4510 / 558 / 2D16)
\d{4}a digit, repeated exactly 4 times
g modifier: global. Finds all matches instead of stopping after the first