Math.max()
, Function.prototype.apply()
to get the longest subarray in the array, Array.prototype.map()
to make each element an array.Array.prototype.reduce()
and Array.prototype.forEach()
to map grouped values to individual arrays.const unzip = arr => arr.reduce( (acc, val) => (val.forEach((v, i) => acc[i].push(v)), acc), Array.from({ length: Math.max(...arr.map(x => x.length)) }).map(x => []) );
unzip([['a', 1, true], ['b', 2, false]]); // [['a', 'b'], [1, 2], [true, false]] unzip([['a', 1, true], ['b', 2]]); // [['a', 'b'], [1, 2], [true]]
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