Implement strStr()

Jan 25, 2018

Implement strStr().

Return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.

 

Example 1:
Input: haystack = “hello”, needle = “ll”
Output: 2

Example 2:
Input: haystack = “aaaaa”, needle = “bba”
Output: -1

 

var strStr = function(haystack, needle) {
    return haystack.indexOf(needle);
};