kotlin - Kotlin 集合库中的 `runningFold` 和 `scan` 方法之间有什么区别吗？

Question

比较两种方法的页面 scan和 runningFold (来自 kotlin.collections )，除了名称外，两者似乎相同。
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/scan.html
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/running-fold.html

Answer 1

显然没有区别，看看这个:

runningFold() and runningReduce() are introduced as synonyms forscan() and scanReduce(). Such names are more consistent with therelated functions fold() and reduce(). In the future, scan() will beavailable along with runningFold() since it’s a commonly known namefor this operation. The experimental scanReduce(), however, will bedeprecated and removed soon.

来源: https://blog.jetbrains.com/kotlin/2020/05/1-4-m2-standard-library/