题解 | #Array.reduce#
Array.reduce
http://www.nowcoder.com/practice/213d0ef21cb841de8cf69fcc5ea60eb6
实现Array.reduce(callback(accumulator, currentValue, currentIndex, Array), [initialValue]);
- 其实就是将callback返回的结果不断累加;
- 注意考虑到原数组长度为1时,只返回该数组元素值即可;
Array.reduce
http://www.nowcoder.com/practice/213d0ef21cb841de8cf69fcc5ea60eb6
实现Array.reduce(callback(accumulator, currentValue, currentIndex, Array), [initialValue]);
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