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Ahmad khattab
Ahmad khattab

Posted on

Discoveries in Ruby(and Rails): Enumerable#minmax

Hi. I'm ahmed, a Rails enthusiastic and i use in my daily life as a developer. This will hopefully be a series in which i write on small(tiny-tips) i discover while coding Ruby.

Enumerable#minmax

Whenever you need to get the maximum and minimum value in any enumerable list. It returns a tuple which is an array of exactly two items(because tuples are not types in Ruby!). The first item being the min and the second being the max in minmax.

[1,2,3,4,5,6].minmax
# => [1,6]
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The list does not even have to be in any specific order, you can also use it with enumerables that are not ordered.

[6,1,5,10,9,0].minmax
# => [0,10]
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Get the farthest between a group of dates(with Rails extensions)

[3.days.from_now, 1.day.from_now, Date.today].minmax
#=> [Thu, 28 Oct 2021, Sun, 31 Oct 2021 15:00:38.694977000 CDT -05:00] 
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Hope you have a great day!. Happy Coding.

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antergos98 profile image
Vincent Bergeron

That's cool! That's why I love Ruby (and Rails). There's so many great functions in the language and in the framework itself

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