how to access value from hash based on key value

Question

I have following hash

hash = {
   "some value": "abc",
   "other value": "dcd"
}

The key value is coming from an object Test and I can access it as Test.key

I am trying to access hash value from the key which is coming from Test.key. I tried to access the key value from hash hash[:Test.key] but that returns NoMethodError Exception: undefined method 'key' for :activity:Symbol

How could i access the hash value?

`Test.key.class` is central to the question. Please edit to give `Test.key`'s class. — Cary Swoveland, Feb 13 '18 at 20:08

vinibrsl · Accepted Answer · 2018-02-13T19:04:28.617

1

Ruby uses Object#eql? method to compare hash keys. If Test.key is a String and the hash key is a Symbol, you need to convert it to a Symbol.

Instead of using hash[Test.key], use hash[Test.key.to_sym].

how to access value from hash based on key value

1 Answers1