Mike Perham

If you want to autobox an object into an Array, Ruby provides a deprecated method, Object#to_a, to do this.  The better, non-deprecated way is to use Array conversion:

irb(main):001:0> foo = Object.new

=> #<Object:0x15234>

irb(main):002:0> foo.to_a

(irb):2: warning: default `to_a' will be obsolete

=> [#<Object:0x15234>]

irb(main):003:0> Array(foo)

=> [#<Object:0x15234>]

irb(main):004:0>  a = Array.new

=> []

irb(main):005:0> Array(a)

=> []