Problem

Return true if every element of small appears in big in left-to-right order (not necessarily adjacent).

Examples

• isSubsequence([1, 3, 5, 3, 7], [3, 5]) -> true
• isSubsequence([1, 3, 5, 3, 7], [3, 7]) -> false
• isSubsequence([10, 20, 30], [20]) -> true