- Use Array.prototype.reduce() to apply the given function to the given array, storing each new result.
//#Source https://bit.ly/2neWfJ2 const reduceSuccessive = (arr, fn, acc) => arr.reduce((res, val, i, arr) => (res.push(fn(res.slice(-1), val, i, arr)), res), [acc]); console.log(reduceSuccessive([1, 2, 3, 4, 5, 6], (acc, val) => acc + val, 0));
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