enum-cpp

const Enum = require('enum-cpp')

// select
let a_enum = new Enum({
    Monday: 1,
    Tuesday: 2,
    Wednesday: 3,
    Thursday: 4,
    Friday: 5,
    Saturday: 6,
    Sunday: 7
})

console.log(a_enum.Friday) // => 5
console.log(a_enum.get(7)) // => Sunday

// options
let b_enum = new Enum({
    RED: 1 << 0,
    BLUE: 1 << 1,
    GREEN: 1 << 2,
    ALPHA: 1 << 3
})

console.log(b_enum.BLUE) // => 2
console.log(b_enum.RED | b_enum.ALPHA) // => 9
console.log(b_enum.mget(9)) // [ 'RED', 'ALPHA' ]