# datatypes let int = 4; let float = 3.5; let string = "something"; let bool = false; # or `true` let null_ = null; let list = [1, 2, 3, 4]; # or `1..4` println(list[0]); # output: `1` let tuple = (1, 2); println(list[1]); # output: `2` let object = { key: "value" }; println(object.key); # output: `value`