For this problem:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/functional-programming/use-the-map-method-to-extract-data-from-an-array
Does this not fit the solution description?
var rating = watchList.map(function (x) {
var myTitle = x.Title;
var myRating = x.imdbRating;
return {myTitle,myRating}
});
I have a code pen of it here:
https://codepen.io/OneSprague/pen/NVBEwm