dig_method

🕳️ Accessing Nested Data with dig

dig allows safe retrieval of deeply nested values from hashes and arrays without intermediate nil checks. It returns nil if any level is missing.

config = { db: { host: "localhost", credentials: { user: "admin" } } }
# Without dig:
user = config[:db] && config[:db][:credentials] && config[:db][:credentials][:user]

# With dig:
user = config.dig(:db, :credentials, :user)
# => "admin"

# If a key is missing:
config.dig(:db, :missing, :key) #=> nil