13 lines
352 B
JavaScript
13 lines
352 B
JavaScript
'use strict';
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Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
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function differenceBy(firstArr, secondArr, mapper) {
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const mappedSecondSet = new Set(secondArr.map(item => mapper(item)));
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return firstArr.filter(item => {
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return !mappedSecondSet.has(mapper(item));
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});
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}
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exports.differenceBy = differenceBy;
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