title: Convert an array of integers into an array of strings in Ruby?
body: <p>I have an array:</p>
  
  <pre><code>int_array = [11,12]
  </code></pre>
  
  <p>I need to convert it into </p>
  
  <pre><code>str_array = ['11','12']
  </code></pre>
  
  <p>I'm new to this technology</p>