Why do you need a return keyword before getJSON(wikiUrl + person.name); ?

If you provide a link to the lesson, it’d be a little easier to provide the most relevant answer, but the return keyword exits out of a function. Take for example...

function addTwelve(x) {
  if (+x) {
    return +x + 12;
  }
  return ‘not a number’
}

If you were to call addTwelve and pass in the number 5 as an argument, it would return the number 17, but if you were to remove the first return statement then call addTwelve and pass in the number 5 as an argument, 5 and 12 would be added together, and still the string not a number would be returned from the function. But if the if condition evaluates to true, then the sum of 12 and x is returned, and the interpreter never even gets to the second return statement.

Sometimes a function doesn’t need to return a value, but you’ll want to skip evaluating certain lines of code if a certain condition is true or false, in which case you would just type the return keyword by itself (solely for the purpose of exiting the function).

Does that make sense?