^start of line
.*?any character (except for line terminators), repeated any number of times
\/the literal / (4710 / 578 / 2F16)
Positive Lookahead(?=packages|videos) packagesthe literal text packages (case sensitive) videosthe literal text videos (case sensitive) .*?any character (except for line terminators), repeated any number of times
\/the literal / (4710 / 578 / 2F16)
\d+a digit, 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