不能在哈希

Question

我使用訪問鍵的值Rspotify gem（這對Spotify的API的包裝），而我試圖訪問第一圖像的URL以下數組中：

[# < RSpotify::Artist: 0x007f8558147050 @images = [{ 
    "height" => 640, "url" => "https://i.scdn.co/image/cb080366dc8af1fe4dc90c4b9959794794884c66", "width" => 640 
    }, { 
    "height" => 320, "url" => "https://i.scdn.co/image/6bd672a0f33705eda4b543c304c21a152f393291", "width" => 320 
    }, { 
    "height" => 160, "url" => "https://i.scdn.co/image/085ae2e76f402468fe9982851b51cf876e4f20fe", "width" => 160 
    }] 
] 

我能夠得到以下使用artist.images.first，但我無法通過鏈接任何東西（如.url，["url"]，("url")，[:url]）訪問URL它：

{"height"=>640, "url"=>"https://i.scdn.co/image/cb080366dc8af1fe4dc90c4b9959794794884c66", "width"=>640} 

這裏是我的控制器：

def search 
    unless params[:artist][:artist_name].blank? 
    artist = params[:artist][:artist_name] 
    @artists = RSpotify::Artist.search(artist) 
    render 'pages/profile' 
    end 
end 

這是我的觀點：

<h1> Search Results </h1> 
<ul> 
<% @artists.each do |artist| %> 
    <li> <%= artist.images.first['url'] %> | <%= artist.name %> </li> 
<% end %> 
</ul> 

Answer 1

使用artist.images.first [ '網址']應該解決這個問題。

下面的代碼爲我工作：

require 'rspotify' 

artist = RSpotify::Artist.search('Arctic Monkeys').first 

puts artist.images.first['url']