how to output determinated strings in an array calling a function in JavaScript

when the function is being called the keys (lisa, homer, etc) I know should be passed in slightly differently than it is currently, but I tried many things and I can’t figure out how to get it to return anything other than undefined

The expected console output should be:

// BAAAAAART! // Eat My Shorts! // d’oh!

// Returns undefined

Also, I’ve tried using console.log(jsObject[key]); within the for loop but still got undefined, so used [keys] instead which works but ignores the loop. Really struggling with this one!

let printValuesOf = (jsObject, keys) => {
  for (let i = 0; i <= keys.length; i++) {
    let key = keys[i];
    console.log(jsObject[key]);
  }
}

let simpsonsCatchphrases = {
  lisa: 'BAAAAAART!',
  bart: 'Eat My Shorts!',
  marge: 'Mmm~mmmmm',
  homer: 'doh!',
  maggie: '(Pacifier Suck)',
};

printValuesOf(simpsonsCatchphrases, 'lisa', 'bart', 'homer');

How would you fix this to pass the function? Thanks a lot for any help, and sorry for this I am just a a beginner

>Solution :

keys is not an array, keys is 'lisa', you wanted to use ... operator

let printValuesOf = (jsObject, ...keys) => {
  for (let i = 0; i < keys.length; i++) {
    let key = keys[i];
    console.log(jsObject[key]);
  }
}

let simpsonsCatchphrases = {
  lisa: 'BAAAAAART!',
  bart: 'Eat My Shorts!',
  marge: 'Mmm~mmmmm',
  homer: 'doh!',
  maggie: '(Pacifier Suck)',
};

printValuesOf(simpsonsCatchphrases, 'lisa', 'bart', 'homer');