<step88>'react_typescript_Tuple, Enum'

1)

ex05_tupleenum.ts

let tuple1: [string, number] = ["green", 20];
let users: [number, string, boolean][];
users = [[1,'Neo',true],[2,'Evan',false],[3,'Lewis',true]];

enum Week {
    Sun,
    Mon,
    Tue,
    Wed,
    Thu,
    Fri,
    Sat
}
console.log(Week);
console.log(Week.Sun);  // 0
console.log(Week[0]);  // Sun

enum Color {
    Red = 'red',
    Green = 'green',
    Blue = 'blue'
}
console.log(Color);
console.log(Color['Red']);
console.log(Color.Green);