我应该如何构思一个正确的折叠与左折叠？ [英] How should I conceptualize a right fold vs a left fold?

问题描述

我是否应该将正确的折叠概念化为将列表折叠到右边或将列表折叠到右边？

换句话说，是否从右到左或从从右到左？

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解决方案

右边的折叠从从右到左。

左边的折叠从左边开始，就像你读文本一样 - 从左到右。

Should I conceptualize a right fold as "folding the list to the right" or as "folding a list from the right"?

In other words, does a right fold go from left-to-right or from right-to-left?

解决方案

Right fold goes from right to left.

Left fold goes from the left, like you read a text - from left to right.

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