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manimal1/flattenArray.js

Last active November 26, 2019 10:33
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JavaScript utility function to flatten an array of arrays
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flattenArray.js
export const flattenArray = (arr, depth = arr.length) => {
return depth > 0
? arr.reduce((acc, val) => acc.concat(Array.isArray(val) ? flattenArray(val, depth - 1) : val), [])
: arr.slice();
};
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