| 1 | export async function reduce(source, accumulator, ...seed) {
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| 2 | const hasSeed = seed.length === 1;
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| 3 | let i = 0, hasValue = false, acc = seed[0];
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| 4 | for await (let item of source) {
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| 5 | if (hasValue || (hasValue = hasSeed)) {
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| 6 | acc = await accumulator(acc, item, i++);
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| 7 | }
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| 8 | else {
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| 9 | acc = item;
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| 10 | hasValue = true;
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| 11 | i++;
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| 12 | }
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| 13 | }
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| 14 | if (!(hasSeed || hasValue)) {
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| 15 | throw new Error('Sequence contains no elements');
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| 16 | }
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| 17 | return acc;
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| 18 | }
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| 19 |
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| 20 | //# sourceMappingURL=reduce.mjs.map
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