function speak(line){ console.log(`The ${this.type} rabbit says '${line}'`) } let whiteRabbit = { type: "white", speak }; let hungryRabbit = { type: "hungry", speak }; whiteRabbit.speak("Oh my fur and whiskers"); hungryRabbit.speak("Got any carrots?"); let finder = { find(array){ return array.some(v => v == this.value) }, value: 5 }; console.log(finder.find([4, 5])) const array = [1, 2, 3, 4, 5]; // Checks whether an element is even const even = (element) => element % 2 === 0; console.log(array.some(even)); let empty = { name: "Geir", age: 51, }; console.log(empty.age.toLocaleString(), ++empty.age);