The function I saw has a "->int" sign after the declaration statement.
class Solution:
def numUniqueEmails(self, emails: List[str]) -> int:
What does it mean? And how can it be used or the best practices to follow? Thanks in advance.
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Papa Bravo
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1https://docs.python.org/3/library/typing.html – Patrick Artner May 21 '22 at 11:41
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1https://stackoverflow.com/questions/32557920/what-are-type-hints-in-python-3-5 – Vae Jiang May 21 '22 at 11:53