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miguelmota/flat.js

Last active January 15, 2018 12:09
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Flatten array recursively in JavaScript
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flat.js
function flatten(array) {
return Array.isArray(array) ? [].concat.apply([], array.map(flatten)) : array;
}
console.log(flatten('a')); // ["a"]
console.log(flatten([[['b']]])); // ["b"]
console.log(flatten(['a',['b'],['c']])); // ["a","b","c"]
console.log(flatten([['a'],'b',['c',['d']]])); // ["a","b","c","d"]
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