title: understanding javascript If else
body: <p>What will be execution sequence of the following code? </p>
  
  <pre><code>return (year % 100 === 0) ? (year % 400 === 0) : (year % 4 === 0);
  </code></pre>
  
  <p>This code is actually just to check a bunch of conditions for the expected result so if anyone could clarify please.Thanks.</p>