title: Difference between Integer(value) and value.to_i
body: <p>Given a string object like this:</p>
  
  <pre><code>twohundred = "200"
  </code></pre>
  
  <p>What is the difference between doing:</p>
  
  <pre><code>Integer(twohundred)  #=&gt; 200
  </code></pre>
  
  <p>and:</p>
  
  <pre><code>twohundred.to_i      #=&gt; 200
  </code></pre>
  
  <p>Is there any difference? Is it recommended to use one among the other one?</p>