Skip nulls or empty href values in arrays?

[danp]

Consider this query, with this SQL:

select
  json_array(
    json_object(
      'href',
      'https://simonwillison.net/',
      'label',
      'Simon Willison'
    ),
    case
      when 'hi' = 'hello' then json_object(
        'href',
        'https://www.python.org/',
        'label',
        'Python'
      )
    end,
    json_object(
      'href',
      '',
      'label',
      'Empty href'
    )
  ) as links

The links don't render due to the null as the second item and the empty href value in the third.

I was trying to put together a query that rendered links for column values I had at hand but some may be missing. There's no doubt a way to extend the query to turn the columns into a subquery so I could use json_group_array but that would be a bit more complicated.

Would skipping null items and/or items with empty href values be worthwhile?