Negative Lookahead(?!"Level\s\d+") "Levelthe literal text "Level (case sensitive) \sany whitespace character
\d+a digit, repeated at least once
"the literal " (3410 / 428 / 2216)
Negative Lookbehind(?<!") "the literal " (3410 / 428 / 2216)
"?optionally matches the literal " (3410 / 428 / 2216)
Levelthe literal text Level (case sensitive) \sany whitespace character
\d+a digit, repeated at least once
"?optionally matches the literal " (3410 / 428 / 2216)
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