Hey,
After few hours trying to figure it out, I finally had a working code for this challenge, but I am sure, there is way I can cut down that Array.filter out of the code.
// Add your code below this line
let NolandRatingBig = watchList.map(obj =>{
return obj.Director == "Christopher Nolan"? parseFloat(obj.imdbRating) : 0;
}); // output [ '8.8', '8.6', '9.0', '8.3', 0 ] I could not find a way tell the function to ignore case where the Director is not "Christopher Nolan"
//Removing the unnecessary values created by the last function
let NolandRating = NolandRatingBig.filter(function(a){
return a > 0;
}); // output [8.8, 8.6, 9, 8.3]
let a = NolandRating.reduce(function(accumulator, currentValue, currentIndex, array){
return currentValue + accumulator;
});
var averageRating = a/NolandRating.length;
// Add your code above this line
console.log(averageRating);