How can I access the three objects in this hash separately?
hash = {"Paul" => [25, 18]}
In this code,
hash.each_pair do |k, v|
print "#{k}: "
v.each do |n|
print "#{n} "
end
print "\n"
end
the variable n accesses [25, 18] as a single object. Doing for example |n, m| does not work.
You could something like below
hash = {}
hash["Paul"] = [25, 18]
hash.each_pair do |k, (v1, v2, *rest)|
print "#{k}: "
print "#{v1} "
print "#{v2} "
print "\n"
end
#=> Paul: 25 18
Alternatively, you could try something like below:
hash = {}
hash["Paul"] = [25, 18]
hash.each_pair do |k, v|
print "#{k}: "
v.tap { |m, n|
print "#{m} "
print "#{n} "
}
print "\n"
end
#=> Paul: 25 18
p [hash.keys, hash.values].flatten
# ["Paul", 25, 18]
