Multiple Identical Option in Switch Statements

Tell us what’s happening:
plz, guys tell me what error in my code?

Your code so far

function sequentialSizes(val) {
  var answer = "";
  // Only change code below this line
  switch(val) {
  case 1:
  case 2:
  case 3:
    result = "Low";
  case 4:
  case 5:
  case 6:
    result = "Mid";
  case 7:
  case 8:
  case 9:
    result = "High";
return answer;  

// Change this value to test

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Link to the challenge:

I see a problem:
What is “result” ?

You return answer (which is an empty string “”), but your Switch statement is assigning values to an undeclared variable named result.