JavaScript | Switch Statement | Can't Find the Error or Bug Please someone help me to find that Bug or Error

Question

The user can choose the color theme for the browser:
1. Light
2. Dark
3. Nocturne
4. Terminal
5. Indigo

You are given a program that takes
 the number as input. Complete the program so that it will output to the console the theme according to input number.

Sample Input
2

Sample Output
Dark

Solution: I write

function main() {
    var themeNumber = parseInt(readLine(), 10)
   1 - Light
    2 - Dark
    3 - Nocturne
    4 - Terminal
    5 - Indigo
    */
    // Your code here
    switch (themeNumber){
        case 1:
        console.log("Light")
        break
        case 2:
        console.log("Dark")
        break
        case 3:
        console.log("Nocturne")
        break
        case 4:
        console.log("Terminal")
        break
        case 5:
        console.log("Indigo")
        break
        case default:
        console.log(1)
        break
    }
}

Answer 1

If you use readline you need install node.js because isn't include in js but you can to use prompt to get input user