Show HN: Cheatcode.io, a Swift syntax reference | Hacker News Reader

Show HN: Cheatcode.io, a Swift syntax reference

cheatcode.io

9 pointspaulshen2 comments

Searches for unfamiliar special characters should work. Single-character operators and syntactic sugar are one of the harder things to google for, and consequently, a big advantage of a purpose made language reference tool like you've made.

A simple solution:

    ?   -> Optionals
    ??  -> nil coalescing
    !   -> Implicitly Unwrapped Optionals
    <>  -> Generics
    as? -> type casting

…and so on

A Better solution:

provide a wikipedia-like disambiguation section for special characters (since `!` could be Implicitly unwrapped optionals, Forced unwrapping, or boolean negation)

Thanks for the feedback! I definitely agree. I've added support for the symbols you suggested (and a couple more, like & for passing inout arguments).

How I implemented this was writing YAML files that get compiled. Each entry has a name, an array of strings for tags, and the code sample itself. When you type a query, it shows prefix tag matches first, followed by non-prefix tag matches. So now when you type '?', you should see optionals, ternary, nil coalescing, etc.. but when you type '??', you're left with only nil coalescing.

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