Question

I have a hash PAYMENT_TYPES_HASH. Is there a way to create an array from this hash using each without declaring the array before it like a = []?

a = [];
PAYMENT_TYPES_HASH.each {|order| a << [order[:name], order[:id]]}
a

Something like this:

array = PAYMENT_TYPES_HASH.each {|order| do something to return the array}

Answer 1

You should use #map method:

PAYMENT_TYPES_HASH.map {|order| [order[:name], order[:id]]}