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jonasantonelli/flattenDeep.js

Last active January 16, 2019 12:32
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flattenDeep.js
function flattenDeep(arr) {
return arr.reduce((acc, val) => Array.isArray(val) ? acc.concat(flattenDeep(val)) : acc.concat(val), []);
}
flattenDeep([[1,2,[3]],4]);
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Flatten Deep JS function

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