Over the years, I’ve seen a lot of code by different people, and my conclusion is that writing great, welldesigned functions is difficult. So, I made this guide, which includes the 7 most important things you should do when writing functions.

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Code reviewers:
Yoriz
Ryan Laursen
James Dooley
Dale Hagglund

Video edited by Mark Bacskai:   / bacskaimark  

Chapters:
0:00 Intro
1:11 Tip 1: Do one thing and do it well
5:17 Tip 2: Separate Commands from queries
6:53 Tip 3: Only request information you actually need
9:27 Tip 4: Keep the number of parameters minimal
14:55 Tip 5: Don’t create and use an object in the same place
17:24 Tip 6: Don’t use flag arguments
19:59 Tip 7: Remember that functions are objects
22:56 BONUS: Tips for naming functions and parameters

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