How can I check if an object with specific property exists in a Ruby array

Question

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?

davidrac · Accepted Answer · 2012-07-07 16:33:47Z

72

arr.any?{|a| a.seat_id == "value"}

answered Jul 7, 2012 at 16:33

davidrac

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2 Comments

YuriAlbuquerque Over a year ago

This is the correct answer because you want to find IF there is the element. But if you want to find WHERE the element is, the other answer is the correct one.

gabitzish Over a year ago

I want to find IF there is an element. Thanks @davidrac

Linuxios · Accepted Answer · 2012-07-07 16:33:34Z

20

Here:

arr.find_index {|item| item.seat_id == other.seat_id}

answered Jul 7, 2012 at 16:33

Linuxios

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Comments

Sandip Mondal · Accepted Answer · 2012-07-14 11:46:42Z

1

arr.map{|a| a.seat_id == "value"}

It will return array of true and false value, true value are matching value.

answered Jul 14, 2012 at 11:46

Sandip Mondal

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