`no implicit conversion of String into Integer` error when trying to get value from hash

Question

I am trying to get Value in a hash using its Key just like below.

#!/usr/bin/ruby

$, = ", "
months = Hash.new( "month" )
months = {"1" => "January", "2" => "February"}

keys = months.keys["1"]
puts "#{keys}"

I get following error

main.rb:7:in `[]': no implicit conversion of String into Integer (TypeError)
    from main.rb:7:in `<main>'

Why am I getting above error?

months.keys is an Array of keys, and arrays must be subscripted by integers. — Arkku
– Arkku, Commented Dec 21, 2018 at 18:22

Ursus · Accepted Answer · 2018-12-21 18:13:32Z

1

What you're looking for is just

months["1"]

Why are you using keys method? That returns all the keys as an array. And therefore you can access that just with numbers. That's what the error is saying.

answered Dec 21, 2018 at 18:13

Ursus

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