Best way to convert strings to symbols in hash

Question

What\'s the (fastest/cleanest/straightforward) way to convert all keys in a hash from strings to symbols in Ruby?

This would be handy when parsing YAML.

Answer 1

Facets' Hash#deep_rekey is also a good option, especially:

• if you find use for other sugar from facets in your project,
• if you prefer code readability over cryptical one-liners.

Sample:

require 'facets/hash/deep_rekey'
my_hash = YAML.load_file('yml').deep_rekey