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mrizwanghuman/Flatten-array

Created June 22, 2017 21:06
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Flatten an array of arbitrarily nested arrays
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Flatten-array
var unflatten =[[1,2,[3]],4]
let flatten = (flattenArray) => flattenArray.reduce((a, b) => a.concat(Array.isArray(b) ? flatten(b) : b), [])
console.log(flatten(unflatten));
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