pointcom · January 3, 2018 21:36
diff --git a/hash-transform_keys.rb b/hash-transform_keys.rb
 h = { a: 1, b: 2, c: 3 }
 => {:a=>1, :b=>2, :c=>3}

 h.transform_keys {|k| k.to_s }
 => {"a"=>1, "b"=>2, "c"=>3}

 h.transform_keys(&:to_s)
 => {"a"=>1, "b"=>2, "c"=>3}

 h.transform_keys.with_index {|k, i| "#{k}.#{i}" }
 => {"a.0"=>1, "b.1"=>2, "c.2"=>3}
	h = { a: 1, b: 2, c: 3 }
	=> {:a=>1, :b=>2, :c=>3}

	h.transform_keys {\|k\| k.to_s }
	=> {"a"=>1, "b"=>2, "c"=>3}

	h.transform_keys(&:to_s)
	=> {"a"=>1, "b"=>2, "c"=>3}

	h.transform_keys.with_index {\|k, i\| "#{k}.#{i}" }
	=> {"a.0"=>1, "b.1"=>2, "c.2"=>3}