Using Objects for Lookups helpp

l can someone help me with this challenge?

Your code so far


// Setup
function phoneticLookup(val) {
  var result = "";

  // Only change code below this line
 var lookup = {
  "alpha" : "Adams",
  "bravo" : "Boston",
  "charlie" : "Chicago",
  "delta" : "Denver",
  "echo" : "Easy",
  "foxtrot" : "Frank",
}

  // Only change code above this line
  return result;
}

// Change this value to test
phoneticLookup("charlie");

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User Agent is: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-javascript/using-objects-for-lookups

so can i reinitialize result such that the object array value is mapped with val before the return statement?