ruby in array
>> ['Cat', 'Dog', 'Bird'].include? 'Dog'
=> true
4.22
8
You can just use a set difference (aka minus) to see if one array includes all elements of another
not_included = [1,2,3] - (1..9).to_a
not_included # => []
not_included = [1,2,3,'A'] - (1..9).to_a
not_included # => ["A"]
Thank you!
8
0
5
0
(1..10).detect { |i| i % 5 == 0 and i % 7 == 0 } #=> nil
(1..10).find { |i| i % 5 == 0 and i % 7 == 0 } #=> nil
(1..100).detect { |i| i % 5 == 0 and i % 7 == 0 } #=> 35
(1..100).find { |i| i % 5 == 0 and i % 7 == 0 } #=> 35
Thank you!
0
0
Are there any code examples left?
New code examples in category Ruby
-
Ruby 2022-03-27 13:25:03 ruby assign value to hash
-
Ruby 2022-03-25 04:05:10 test if array empty ruby
-
Ruby 2022-03-24 19:45:17 rails update without validation
-
Ruby 2022-03-23 05:15:08 ruby hello world
-
Ruby 2022-03-23 02:40:01 rails keep all params except for some
-
Ruby 2022-03-20 06:15:08 rails hidden field default value
-
Ruby 2022-03-19 19:55:31 print things ruby
-
Ruby 2022-03-18 22:15:07 rails command line
-
Ruby 2022-03-18 08:10:03 ruby get the number of same element in array
-
Ruby 2022-03-17 02:40:17 drop rails all db