Effects interview questions
Practice 3 questions on effects. Each runs in a real in-browser editor with Jest tests and a worked, diagram-backed solution.
3 questions
- JavaScriptCoding exercise
useDeepCompareEffect
MEDIUMImplement a useEffect that re-runs when its dependencies change by value, not by reference.
25 minPractice - JavaScriptCoding exercise
useTrackedEffect
MEDIUMImplement an effect that also tells you which of its dependencies changed since the last run.
25 minPractice - JavaScriptCoding exercise
Redux-Saga Effect Runner
HARDBuild a redux-saga-style interpreter that runs a generator of declarative effects and resumes it with each result.
50 minPremium questionPractice