質問

I'm having hard time trying to get nth element from the varargs sequnce in scala. Here's my code

def foo(args: String*) = args.toArray(1)

I receive error like:

error: type mismatch;
found   : Int(1)
required: scala.reflect.ClassTag[?]
     def foo(args: String*) = args.toArray(1)

What's interesting, code like this works great:

def foo(args: String*) = args.toArray.apply(1)

I'm pretty new to scala but I thought that it should be exactly the same. Is using apply right way to select nth element from vararg seq?

役に立ちましたか?

解決

You can call apply on the input argument directly:

def foo(args: String*) = args(1)
ライセンス: CC-BY-SA帰属
所属していません StackOverflow
scroll top