27 lines
874 B
JavaScript
27 lines
874 B
JavaScript
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//#region src/array/unzip.ts
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/**
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* Gathers elements in the same position in an internal array
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* from a grouped array of elements and returns them as a new array.
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*
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* @template T - The type of elements in the nested array.
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* @param {Array<[...T]>} zipped - The nested array to unzip.
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* @returns {Unzip<T>} A new array of unzipped elements.
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*
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* @example
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* const zipped = [['a', true, 1],['b', false, 2]];
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* const result = unzip(zipped);
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* // result will be [['a', 'b'], [true, false], [1, 2]]
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*/
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function unzip(zipped) {
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let maxLen = 0;
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for (let i = 0; i < zipped.length; i++) if (zipped[i].length > maxLen) maxLen = zipped[i].length;
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const result = new Array(maxLen);
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for (let i = 0; i < maxLen; i++) {
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result[i] = new Array(zipped.length);
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for (let j = 0; j < zipped.length; j++) result[i][j] = zipped[j][i];
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}
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return result;
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}
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//#endregion
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exports.unzip = unzip;
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