6.3.5 usually includes exercises that require "Helper Functions" to keep the code clean (DRY—Don't Repeat Yourself). Key Challenges in 6.3.5
for this specific exercise or help with a different Unit 6 problem? 6.3.5 Cmu Cs Academy
In previous units, you used app.step() to make things happen automatically. In Unit 6.3, you switch to programming. The code only runs when the user presses a key. 6.3.5 Cmu Cs Academy