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JavaScript

Steven Vallarsa
Steven Vallarsa
10,842 Points
Posted by Steven Vallarsa
Steven Vallarsa
10,842 Points

I came up with this solution and generated the same result

I solved this on my own and came up with this solution that generated the same result. I reduced the array into an array of objects before mapping the book titles into a new array.

const results = users
    .reduce((arr, item) => [...arr, ...item.favoriteBooks], [])
    .map(arr => arr.title);

Joel's solution is

const books = users
  .map(item => item.favoriteBooks.map(book => book.title))
  .reduce((arr, item) => [...arr, ...item]);

Is one inherently better than the other?

1 Answer

Zimri Leijen
Zimri Leijen
11,835 Points
Zimri Leijen
Zimri Leijen
11,835 Points

Good solution.

They are both similar so I wouldnt say one is better