title: Ruby: How can I get all the key elements from an json format?
body: <p>I am new on ruby, i am not faimilar with the code block...
  How can I get all the key element in an json format text?</p>
  
  <pre><code>text= "[{ "name" : "car", "status": "good"},
  { "name" : "bus", "status": "bad"},{ "name" : "taxi", "status": "soso"}]"
  </code></pre>
  
  <p>From the text, it is a string with json like format, 
  how can i extract the name value only and input into an array</p>
  
  <p>desired output ==>
  [car, bus, taxi]</p>