Hash#update - need tweaks

Ruby
1

I am in a situation,where I have to the below kind of operations.

h1 = {:url_id => 1, :used => 10}
h2 = {:url_id => 1, :used => 5}
h1.update(h2) {|k,old,new| old + new }

=> {:url_id=>2, :used=>15}

now the above code is working as it supposed to do. Now I actually want
the hash output {:url_id=>1, :used=>15}.

But using Hash#update can this be achieved? any tweak to my code?

2

What’s wrong with

h2.each { |k,v| h1[k] += v }

3

Joel P. wrote in post #1116045:

What’s wrong with

h2.each { |k,v| h1[k] += v }

I do have array of hashes,on which I need to perform this. Thus I
thought about Hash#update.

like h1 = [{:url_id => 1, :used => 10},{:url_id => 1, :used => 5}]

4

I finally reach out to my goal,which is

h1 = {:url_id => 1, :used => 10}
h2 = {:url_id => 1, :used => 5}
h3 = h1.update(h2) do |k,old,new|
if k == :used
old+new
else
old
end
end
h3

=> {:url_id=>1, :used=>15}