Created
January 18, 2018 16:45
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Recursively Flatten an Array
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| // Expected input -> output | |
| // [[1,2,[3]],4] -> [1,2,3,4] | |
| const input = [[1,2,[3]],4] | |
| const flatten = (array, base = []) => array.reduce( | |
| (result, current) => ((Array.isArray(current)) ? flatten(current, result) : [...result, current]) | |
| , base) | |
| // -> [1, 2, 3, 4] | |
| console.log(flatten(input)) |
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