如何检查 Ruby 数组中是否存在具有特定属性的对象
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How can I check if an object with specific property exists in a Ruby array
提问by gabitzish
I have an array of objects *and the object looks something *like this {seat_id, room_id, date_created};
I want to find if in that array there is an object which has seat_id equal to a specific value. How can I do that?
我有一个对象数组 * 并且对象看起来像这样 *{seat_id, room_id, date_created};
我想查找该数组中是否有一个对象的座位 ID 等于特定值。我怎样才能做到这一点？
回答by davidrac
arr.any?{|a| a.seat_id == "value"}
回答by Linuxios
Here:
这里：
arr.find_index {|item| item.seat_id == other.seat_id}
回答by Sandip Mondal
arr.map{|a| a.seat_id == "value"}
It will return array of true and false value, true value are matching value.
它将返回真假值数组，真值是匹配值。
