title: Need ideas to change a key's name of JSON Object on RUBY
body: <p>i am finding a method to change a key's name of json object that is a hash on ruby like below </p>
  
  <p>source </p>
  
  <pre><code>{ "a" =&gt; "b", "b" =&gt; "bb" }
  </code></pre>
  
  <p>result </p>
  
  <pre><code>{ "c" =&gt; "b", "b" =&gt; "bb" }
  </code></pre>
  
  <p>got a nice idea ?</p>