All about Ruby hashes

all_about_hashes.md

Ruby Hashes

• Represents a key-value mapping
• Contains zero or more key/value pairs
• Can only access values by referencing keys

Exercises

How do you get "Gabe" out of the following hash?

hash = { "name" => "Gabe" }

How do you get "There" out of the following hash?

hash = { "hello" => "There" }

How do you get { "name" => "Gabe" } out of the following hash?

hash = { "hello" => { "name" => "Gabe" } }

How do you get "Gabe" out of the following hash?

hash = { "hello" => { "name" => "Gabe" } }