1 00:00:00,180 --> 00:00:01,900 Welcome to Work Book 4.1. 2 00:00:01,920 --> 00:00:07,590 Functions help you avoid duplicating code instead of copying and pasting this snippet of code, what 3 00:00:07,590 --> 00:00:12,840 you should do is create a function that performs the task and then call the function as many times as 4 00:00:12,840 --> 00:00:13,530 you need to. 5 00:00:15,630 --> 00:00:19,440 You can access this workbook by clicking the link inside of the resources folder. 6 00:00:20,490 --> 00:00:25,290 If you ever get stuck, there is a solution code inside the same folder as the Starter project. 7 00:00:25,320 --> 00:00:29,370 You can also find a video solution inside of the course's appendix.