| about | help | code help+videos | done | prefs | 
| Return the index of the first 6 in the array. If there is no 6 in the array, return -1. first6([4, 1, 6, 7]) → 2 first6([6, 7, 6]) → 0 first6([5, 9]) → -1 ...Save, Compile, Run (ctrl-enter) | 
Progress graphs: 
 Your progress graph for this problem
 Random user progress graph for this problem 
 Random Epic Progress Graph
Difficulty: 100
Copyright Nick Parlante 2017 - privacy