Values, functions, and control flow

Name values, write typed functions, and choose or repeat work:

1. Name values
2. Choose numeric types
3. Calculate with numbers Floating-point calculations extend these rules.
4. Write text
5. Build text with f-strings
6. Define functions
7. Complete work without returning data
8. Choose between branches
9. Return early
10. Keep names in scope
11. Repeat with a range
12. Repeat while a condition holds
13. Give types descriptive names

Next: Absence and failure.