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erquhart/flatten.js

Created March 2, 2017 21:19
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flatten.js
function flatten(arr) {
return arr.reduce((acc, val) => acc.concat(Array.isArray(val) ? flatten(val) : val), []);
}
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erquhart commented Mar 2, 2017

Test it out here: https://runkit.com/erquhart/58b88d7ab2ec750014ac41f7

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