Modular code: functions, parameters, scope and parameter passing

What this note covers

1. Why programs are broken into modules
2. Functions, parameters and arguments
3. Returning one value or one data structure
4. Scope: local and global variables
5. Parameter passing by value and by reference
6. Stubs, mainlines and top-down development
7. Exam technique for modular-code questions

7 sections · 11 key terms & formulas · 6 common mistakes