5 lines
196 B
JavaScript
5 lines
196 B
JavaScript
const flatten = (arr, depth = 1) =>
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depth != 1
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? arr.reduce((a, v) => a.concat(Array.isArray(v) ? flatten(v, depth - 1) : v), [])
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: arr.reduce((a, v) => a.concat(v), []);
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module.exports = flatten |