Created
April 8, 2019 17:42
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Recursively flatten an array of integers
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| const flattenArray = arr => | |
| arr.reduce((acc, cur) => { | |
| if (Array.isArray(cur)) { | |
| return acc.concat(flattenArray(cur)) | |
| } | |
| return acc.concat(cur) | |
| }, []) |
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