28. Implement strStr()

https://leetcode.com/problems/implement-strstr/

JavaScript

/**
 * @param {string} haystack
 * @param {string} needle
 * @return {number}
 */
var strStr = function(haystack, needle) {
  return haystack.indexOf(needle)
}

Python

class Solution(object):

    def strStr(self, haystack, needle):
        """
        :type haystack: str
        :type needle: str
        :rtype: int
        """
        return haystack.find(needle)