return is for early results in Motoko (tweet)

[ggreif]

You can prematurely leave a Motoko function (or async expression) with the return ⟨res⟩ expressions, should the circumstances allow it. (Here ⟨res⟩ is optional and defaults to unit: ()). Notably though, you don't need a return when falling off the end of the function with a result (as most modern languages, like Rust and Wasm). We suggest that you only early-return.