Solution in moc 0.8.3: let else - "match" and "take" in motoko - do? for variants (was "when")

[skilesare]

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New Let Binding and Serialization Improvements: Motoko Updates

[image] Motoko Biweekly Update Part 8! Hi Motoko Devs! Welcome to the latest Motoko update post. If you missed the last update post from the Motoko team, check it out here! Last time we talked about a generational GC demo and performance optimizations for our VSCode Extension. Today we’ll be talking about a new let-else binding and improved deserialization in Candid! [image] New Language Feature: let-else binding! There is a new let binding known as the let-else binding! let-else works…

let ?x = getMyNat() else {return #err("I just could not do it")};

let y = x + x;