Tour: it's not immediately clear the hypothetical foldLeft with a single parameterlist doesn't compile

[zuliandri2]

Hi all

may be this document need update
when I am run this code, it got error

[martijnhoekstra]

That's correct. If foldLeft would have a single parameter list instead of multiple parameter lists, the code would look like that. But it doesn't, so the code doesn't look like that (but rather, like below).

Considering you didn't get that immediately, it's plausible that the language around that snippet could be clearer.

[zuliandri2]

Hi @martijnhoekstra
when I run the code it say this

please advice
Thank's

[martijnhoekstra]

That code shouldn't compile, it's an example what the code would look like of foldLeft had been defined with a single parameter list.

For concrete questions about how to do things, use gitter (https://gitter.im/scala/scala) or discourse: (https://users.scala-lang.org/)

[zuliandri2]

Hi @martijnhoekstra

noted, Thank's

[martijnhoekstra]

Reopening. IMO every case of misunderstood doc is an opportunity to improve. I'd like to see if I can phrase more clearly.