2016-11-04 22 views
0

陣列我有這樣的代碼:紅寶石:按一個foat場

response = Place.all 

    nearPlaces = [] 
    for el in response 
     distance = el.distance_to([41.9097306,12.2558141]) 
     if distance < 20 
     el.distance = distance 
     nearPlaces.push(el) 
     end 
    end 

    orderPlaces = nearPlaces.sort_by{|e| e[:distance]} 

但陣列不受距離整理歸檔......什麼建議嗎?

回答

2
nearPlaces.sort_by(&:distance) 
+0

我有此錯誤=>'語法錯誤,意想不到&' – SaroVin

+0

@SaroVin是不可能:) –

+0

詳情=>'_controller.rb:23:語法錯誤,意想不到&orderPlaces = nearPlaces.sort_by { &:distance} ^' – SaroVin