Filter/ flatMap out objects with any nil values from array in swift 4

Question

I am filling in a UICollectionView with results from a query. Sometimes, the resulting stories don't have images. I would like to skip those objects entirely.

How can I skip over results from a JSON query that don't have any image present? It looks like I should use flatMap, but can't get it going.

Here is the code I'm using:

<a href="#">Test</a>

Answer 1

There are two ways to solve this:

• Don't append the article if the Value Objects nil

• Append everything, but then filter the items with image only:

  let hasImageArticles = articles.filter({ $0.imageURL != nil })