isPrefixOf package:os-string

O(n) The isPrefixOf function takes two OsStrings and returns True
O(n) The isPrefixOf function takes two ShortByteStrings and returns True iff the first is a prefix of the second.
O(n) The isPrefixOf function takes two OsStrings and returns True
O(n) The isPrefixOf function takes two OsStrings and returns True