Quick study sessions to strengthen memory and retain key concepts.
Why does OrderOps care about when to use a class?
Because the toolkit now carries orders, lines, customers, and inventory concepts that deserve clearer state and behavior than…
View Card →What is the best default for when to use a class?
Choose the simplest shape that keeps the rule explicit, testable, and easy for the next engineer to read.…
View Card →How should you explain when to use a class in an interview?
Introduce a class when related state and behavior start traveling together often enough to deserve one concept. Interviewers…
View Card →What is the main pitfall around when to use a class?
Keeping a growing domain concept as an unstructured dictionary makes invariants and behavior harder to place. Naming the…
View Card →What is the core rule behind when to use a class?
Introduce a class when related state and behavior start traveling together often enough to deserve one concept. This…
View Card →What does good factories code look like?
It is explicit about the rule, honest about the data shape, easy to test, and easy to explain…
View Card →What is the next improvement after the first working version of factories?
Clarify one boundary, add one focused test, and remove one avoidable ambiguity. Small improvements that directly reduce risk…
View Card →What anti-pattern should you watch for with factories?
Using the feature to compress code while making the rule harder to test, debug, or explain. Compression is…
View Card →What does a good verbal answer about factories sound like?
Clear, concrete, tradeoff-aware, and tied to one real workflow or bug pattern. Interview answers improve when they sound…
View Card →What senior-level judgment belongs with factories?
State when you would choose this approach, when you would not, and which signal would trigger a different…
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