條件存在陣列ID與軌道

Question

ID我有查詢：

Product.all.where(x: @id) 

隨着

x = ["9", "8", "7","5"] # Array exam 

# And 

@id = 5 

如何檢查是否5是array？

Answer 1

X = [9,8，7,5]＃陣列考試

@id = 5

if x.include?(@id) 
Product.find(@id) 
end 

或

Product.find(@id) if x.include?(@id)