Objective

Implement is_subsequence, an ordered subsequence checker.

Steps

• Create hidden_subsequence.py.
• Expose def is_subsequence(needle: str, haystack: str) -> bool:.
• Return True when every character of needle can be found in haystack in the same order.
• Characters do not need to be adjacent.
• The comparison is case-sensitive.
• An empty needle is always a valid subsequence.

Objective

Implement is_subsequence, an ordered subsequence checker.

Steps

• Create hidden_subsequence.py.
• Expose def is_subsequence(needle: str, haystack: str) -> bool:.
• Return True when every character of needle can be found in haystack in the same order.
• Characters do not need to be adjacent.
• The comparison is case-sensitive.
• An empty needle is always a valid subsequence.