Convert Ruby Hash into YAML

Here's how I'd do it:

require 'yaml'HASH_OF_HASHES = {  "hostname1.test.com"=> {"public"=>"51", "private"=>"10"},  "hostname2.test.com"=> {"public"=>"192", "private"=>"12"}}ARRAY_OF_HASHES = [  {"hostname1.test.com"=> {"public"=>"51", "private"=>"10"}},  {"hostname2.test.com"=> {"public"=>"192", "private"=>"12"}}]puts HASH_OF_HASHES.to_yamlputsputs ARRAY_OF_HASHES.to_yaml

Which outputs:

---hostname1.test.com:  public: '51'  private: '10'hostname2.test.com:  public: '192'  private: '12'---- hostname1.test.com:    public: '51'    private: '10'- hostname2.test.com:    public: '192'    private: '12'

The Object class has a to_yaml method. I used that and it generated the YAML file correctly.

No, it doesn't.

This is from a freshly opened IRB session:

Object.instance_methods.grep(/to_yaml/)=> []require 'yaml'=> trueObject.instance_methods.grep(/to_yaml/)=> [:psych_to_yaml, :to_yaml, :to_yaml_properties]

You can use the to_yaml method on a hash for this I believe after you require yaml

You can use YAML.dump:

YAML.dump(a: 2, b: 1)=> "---\n:a: 2\n:b: 1\n

One advantage of YAML.dump over to_yaml is that it's easier to infer what the code is doing because most people read from left to right.