Sorting an array of objects in Ruby by object attribute?

I recommend using sort_by instead:

objects.sort_by {|obj| obj.attribute}

Especially if attribute may be calculated.

Or a more concise approach:

objects.sort_by(&:attribute)

Yes, using Array#sort! this is easy.

myarray.sort! { |a, b|  a.attribute <=> b.attribute }

More elegant objects.sort_by(&:attribute), you can add on a .reverse if you need to switch the order.

Array#sort works well, as posted above:

myarray.sort! { |a, b|  a.attribute <=> b.attribute }

BUT, you need to make sure that the <=> operator is implemented for that attribute. If it's a Ruby native data type, this isn't a problem. Otherwise, write you own implementation that returns -1 if a < b, 0 if they are equal, and 1 if a > b.

Yes its possible

http://ariejan.net/2007/01/28/ruby-sort-an-array-of-objects-by-an-attribute/