\d+a digit, repeated at least once
\s*any whitespace character, repeated any number of times
/the literal / (4710 / 578 / 2F16)
*the literal * (4210 / 528 / 2A16)
+the literal + (4310 / 538 / 2B16)
-the literal - (4510 / 558 / 2D16)
\d+a digit, repeated at least once
g modifier: global. Finds all matches instead of stopping after the first