There is no hint

Tell us what’s happening:
i have no idea what I’m doing here, the description confuses me and the hint is the description(aka no hint)

Your code so far

function caseInSwitch(val) {
  var answer = "";
  // Only change code below this line
  switch (val) {
    case 'alpha':
    case 'beta':
    case 'gamma':
    case 'delta':
  // Only change code above this line  
  return answer;  

// Change this value to test

Your browser information:

Your Browser User Agent is: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0.

Link to the challenge:

So the instructions read

Write a switch statement which tests val and sets answer for the following conditions:
1 - “alpha”
2 - “beta”
3 - “gamma”
4 - “delta”

The numbers here are not numbers of a list. These numbers are what your function is given.

This means, say, if your function were given the number 1, it should return "alpha". You can see this from the challenge tests as well. The switch statements are a way around not having many many if-else statements.

I hope that helps.