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Last change
on this file since ba17441 was a762898, checked in by istevanoska <ilinastevanoska@…>, 5 months ago |
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File size:
467 bytes
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| [a762898] | 1 | function reduce(set, callback, initialValue) {
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| 2 | if (initialValue == null && set.size === 0) {
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| 3 | throw new TypeError('Reduce of empty set with no initial value');
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| 4 | }
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| 5 | let accumulator = initialValue;
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| 6 | for (const value of set) {
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| 7 | if (accumulator == null) {
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| 8 | accumulator = value;
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| 9 | }
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| 10 | else {
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| 11 | accumulator = callback(accumulator, value, value, set);
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| 12 | }
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| 13 | }
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| 14 | return accumulator;
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| 15 | }
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| 16 |
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| 17 | export { reduce };
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