^start of line
6the literal 6 (5410 / 668 / 3616)
\.the literal . (4610 / 568 / 2E16)
3the literal 3 (5110 / 638 / 3316)
\/the literal / (4710 / 578 / 2F16)
.+any character (except for line terminators), repeated at least once
g modifier: global. Finds all matches instead of stopping after the first
m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string