Practice · 3 of 3

Reflog Walk

CHALLENGE

Difficulty: intermediate+25 XP

reflog is an array of { head, action } entries, newest FIRST. Write lastGood(reflog, badAfterAction) — walk the reflog and return the head of the newest entry at or before the LAST occurrence of an entry whose action is "commit". (In real terms: find the most recent committed state.) Return null if none.

Press Submit to check your solution.

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