Looks for the first match of pattern in the string s. If a match is found it is returned. Otherwise, this returns nil. A third, optional numerical argument init specifies where to start the search; its default value is 1 and can be negative.
Optional
Looks for the first match of pattern in the string s. If a match is found it is returned. Otherwise, this returns nil. A third, optional numerical argument init specifies where to start the search; its default value is 1 and can be negative.