fn sum(a, b) { + a b; } sum(2,3); // -> 5 let a = "Hello"; let b = "world"; println(+ + + a " " b "!"); // -> "Hello world!" if == a b { println("whaaaat"); } else { println(":o"); } loop { let i = 0; if >= i 10 { break; } i = + i 1; }