Practice · 3 of 3

Blocking Audit

CHALLENGE

Difficulty: intermediate+25 XP

Given an array of resources { type, blocking } where type is "css" | "js" | "font" | "img" and blocking is true when it blocks first render, write firstPaintBlockers(resources) returning the COUNT of blockers, and byKind(resources) returning an object mapping type => count (only types present).

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Back to lesson: Practice: Waterfall & Blocking — Practice