Mutations tell me whats wrong with my code i write the code as same way

Tell us what’s happening:
so here is comparison with my code and another code basically yor code i write the same way but your cd=ode work but my didnt what is the problem i am facing problems in many solutions like this

Your code so far


function mutation(arr) {
  var test = arr[1].toLowerCase();
  var jest = arr[0].toLowerCase();
  for (var i=0; i<test.length; i++){
    if(jest.indexOf(test[i]) === -1){
      return false;
    }
    return true;
    }
}
  function mutation(arr) {
  var test = arr[1].toLowerCase();
  var target = arr[0].toLowerCase();
  for (var i=0; i<test.length; i++) {
    if (target.indexOf(test[i]) === -1)
      return false;
  }
  return true;
 }



mutation(["hello", "hey"]);

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-algorithm-scripting/mutations

Copy-pasted and worked :confused:
Have you tried it on Mozilla?