is there a method or attribute like js (arr.length) ?
It’s strange such a fundamental API is not documented, (or hard to find in the document)
You are totally right.
I was surprised to find that it was not here: Array :: Internet Computer
Short term: i’ll make sure its added.
Medium term: we are in the middle of an entire overhaul of the documentation (because none of us are happy with it)
.size() is actually not defined in the base library, but comes directly from the compiler. Having said that, I fully agree that in the name of discoverability we should at least mention it in that module (just like the generated
== operator, when the compiler is able to generate it).
Edit: I had to dive a bit into the docs and find it buried deep in the language overview chapter of the Motoko guide: Untitled :: Internet Computer
So it is there, but we could do better. The search engine for the site also didn’t come up with this.
Thank you, Gabor. This is helpful
I think a simple short-term fix would be to add a wrapper to the
Array module. Something like:
public func size<A>(xs : [A]) : Nat = xs.size();
Same goes for other things where this comes up.
This is not in the docs yet right? Internet Computer Content Validation Bootstrap
Can you track how devs interact with the docs? I’d be so curious to see what they run into.
I made a PR:
Array.size() is released now: Release 0.7.6 · dfinity/motoko · GitHub
Please note that
dfx may need a few days to catch up.
dfx-0.13.0-beta.1 has caught up!