title: How to check if array is null or empty?
body: <p>I want to check if my array is empty or null, and on base of which I want to create a condition for example.</p>
  
  <pre><code>if(array ==  EMPTY){
  //do something
  }
  </code></pre>
  
  <p>I hope I'm clear what I am asking, just need to check if my array is empty?</p>
  
  <p>regards</p>