4 ms·

I'm sure it makes sense to someone well-versed in Rust syntax, but to an outsider like me that code looks like the kind of "line noise" that made me switch from

• opnitro 6y ago
  A) this is in Racket, as that's the editor window I had up. B) your point is fair, one benefit of this is that it also binds names to things.
• lachlan-sneff 6y ago
  That code in the comment above isn't actually rust. It's a lisp, I believe. In Rust, you'd write something more like: fn f(x: &[i32]) -> bool { match x { [x, y, _] if x == y => true, _ => false, } }
  • steveklabnik 6y ago
    ... and you could write fn f(x: &[i32]) -> bool { x.len() == 3 && x[0] == x[1] } if you wanted. Honestly, I probably would.