Coding (Platform)
angular · Hard · optimistic reconciliation
A board supports several rapid card moves. When one request fails, the current implementation restores the entire old board and erases later confirmed moves.
Reconcile move intents independently so failure restores only the affected intent while later confirmed order remains.
Optimistic reorder journal is a coding (platform) interview exercise that trains prompt interpretation, explicit assumptions, a concrete response, and a clear explanation of tradeoffs. The catalog marks it as hard difficulty. It focuses on State Modeling, Regression Testing, Technical Reasoning. The signed-in workspace provides the tools for the round and evaluates the attempt against task-specific criteria. Reference solutions, hidden checks, evaluator instructions, and candidate work remain private.