Quick study sessions to strengthen memory and retain key concepts.
When does module boundaries need a refactor?
When the rule is no longer easy to explain, test, or change without surprising nearby code. Refactoring is…
View Card →What production lens matters for module boundaries?
Assume the simple demo is not enough. Real data volume, partner behavior, and partial failures will pressure the…
View Card →What review lens should you apply to module boundaries code?
Ask whether the next engineer can see the rule, the data shape, and the likely failure mode quickly.…
View Card →What testing lens fits module boundaries?
Test the boundary cases and invariants that would silently break if the rule were misunderstood. Good tests preserve…
View Card →What debugging lens helps most with module boundaries?
Trace one real example, inspect the state changes, and compare them to the rule you intended to implement.…
View Card →Why does OrderOps care about module boundaries?
Because the team wants OrderOps to be installed, run, and maintained by more than one person instead of…
View Card →What is the best default for module boundaries?
Choose the simplest shape that keeps the rule explicit, testable, and easy for the next engineer to read.…
View Card →How should you explain module boundaries in an interview?
Split the code where the responsibilities naturally diverge so navigation and change impact stay readable. Interviewers often ask…
View Card →What is the main pitfall around module boundaries?
Throwing unrelated helpers into one file makes import boundaries meaningless and future edits riskier. Naming the pitfall early…
View Card →What is the core rule behind module boundaries?
Split the code where the responsibilities naturally diverge so navigation and change impact stay readable. This matters because…
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