gravity-lang/test/unittest/map_haskey.gravity

#unittest {
	name: "Map hasKey method.";
	result: 2;
};

func main() {
	var n = 0;
	var map = ["key1":1, "key2":2, "key3":3];
    
    if (map.hasKey("key3")) n += 1;
    if (!map.hasKey("key4")) n += 1;
    
    return n;
}