dayOfTheWeek.js

/*
Complete the function which returns the weekday according to the input number:

1 returns "Sunday"
2 returns "Monday"
3 returns "Tuesday"
4 returns "Wednesday"
5 returns "Thursday"
6 returns "Friday"
7 returns "Saturday"
Otherwise returns "Wrong, please enter a number between 1 and 7"
*/

//Answer//

function whatday(num) { 
  var days = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
  return days[num - 1] || 'Wrong, please enter a number between 1 and 7';
}

//OR//

function whatday(num) {
switch(num){
case 1: return 'Sunday';
break;
case 2: return "Monday";
break;
case 3: return "Tuesday";
break;
case 4: return "Wednesday";
break;
case 5: return "Thursday";
break;
case 6: return "Friday";
break;
case 7: return "Saturday";
break;
default: return "Wrong, please enter a number between 1 and 7"

}
}