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wanderlima/Flat Array JS

Created January 2, 2019 23:07
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Flat Array JS
// Using ES6 reduce
const flatIt = arr => arr.reduce(
(a, b) => a.concat(Array.isArray(b) ? flatIt(b) : b), []
);
// Example
const arrayToFlat = [1,[2, 3],[4,[5, 6],[7, 8],[9,10,[11, 12]]]];
console.log(flatIt(arrayToFlat));
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