在Scala中将List [Try [T]]尝试为[List [T]] [英] List[Try[T]] to Try[List[T]] in Scala

问题描述

我想知道如何在Scala中将List [Try [T]]转换为Try [List [T]]?

I would like to know how to convert a List[Try[T]] to Try[List[T]] in Scala?

我尝试过使用累加器并向右折叠，但这似乎并不理想.

I have tried using an accumulator and folding right but it doesn't seem ideal.

推荐答案

使用猫就像这样简单:

import cats._
import cats.data._
import cats.implicits._
import scala.util.{Try, Success, Failure}

val tries: List[Try[Int]] = List(Success(1), Success(2), Success(3))
tries.sequence

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