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How does Array.reduce work?

Q: How does Array.reduce work?

**Core Concept (TL;DR)** `reduce` executes a user-provided reducer function on each element of an array sequentially, passing the accumulated result from the previous iteration into the next, resulting in a single aggregated value. reduce aggregates elements into a single value accumulator Stack (References) <rect x="40" y="60" width="110" height="24" rx="4" fill="#3b82f6" fill-opacity="0.2" stroke="

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