28. Find the Index of the First Occurrence in a String

Medium

Given two strings needle and haystack, return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.

Solution

class Solution:
    def strStr(self, haystack: str, needle: str) -> int:
        if needle in haystack:
            return haystack.index(needle)

        return -1