Working with RSpotify array

[dajwill]

@chrisvfritz

I am trying to get top tracks of a searched artist. I was messing around in the console trying to create a loop that would return the name of every song in the top tracks array:

artist = RSpotify::Artist.search('Frank Ocean').first songs = artist.top_tracks(:US) songs.each do |s| s.name end

But instead of returning an array of track names it returns the same array as artist.top_tracks(:US), which is an incredibly long array of all the info on each track.

Do you know how to fix this?

[chrisvfritz]

I think what you want is:

song_names = songs.map do |s|
  s.name
end

map actually creates a new array where each item in the array is replaced by the last line in the block (the do...end). Let me know if that's what you were looking for!

[dajwill]

Thank you, that works! One more question, I want to display a image along with the song title. Right now that returns an array of songs ([song1, song2, ...]. How would I go about creating an array of arrays such as [[song1, song1_image], [song2, song_image], ...]

[dajwill]

Nevermind. I have created the array I want, I just can't populate it with the info I want.

Currently the line:

@test = tracks.first.album.images.first

returns

{"height"=>640, "url"=>"https://i.scdn.co/image/3012f6af84d128b2261b54b40dae836d0102a553", "width"=>640}

But when I try to access the url with @test = tracks.first.album.images.first.url I get an error

[chrisvfritz]

Great troubleshooting! So that return is actually a hash. In Ruby, we can't access hashes with a dot, but use square brackets, with the key inside. In this case, they key is "url", so we'd do first["url"]. We know that this is a hash btw because it's in curly braces, with the => (that's called the hash rocket) between keys and values.