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turizoft/flatten.js

Created November 16, 2018 03:31
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Flatten array
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flatten.js
const testArray = [[1, 2, 3], 4, 5, [[6], [7, 8, [9, 10]], 11, 12], 13]
const flatten = (array) =>
array.reduce((memory, element) =>
Array.isArray(element)
? memory.concat(flatten(element))
: memory.concat(element)
, [])
flatten(testArray)
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