const greetings = "Hello, World!"; // console.log( greetings ); enum Season { spring = 1, summer, autumn, winter, }; const ar: string[] = [ "1", "2", ]; const ar2: (string | number)[] = [ 1, 2, 3, "4", ]; const ar3: readonly (string | number)[] = [1, 2, 3, 4, 5, "7",]; const today = Season.spring; function ts(): string { const message = "message"; return message; } ts(); console.log(today);