Hey there, how can I use `scan` where the accumula...

# rx

[robinchew]

Hey there, how can I use scan where the accumulation function has 2 arguments of different types?

[leolima]

Observable.just("Hello", "World")
      .scan(0) { acc, it -> acc + it.length }
      .subscribe(::println)

seems to work fine

[Ulrik Bech Hald]

Yeah, you need to use the overloaded version with a seed value