title: Check one array's elements contains in another array
body: <p>**</p>
  
  <pre><code>labels = ['UNREAD', 'CATEGORY_PERSONAL', 'INBOX']
  incomingLabels = ['UNREAD','IMPORTANT' 'CATEGORY_PERSONAL', 'INBOX']
  </code></pre>
  
  <p>**</p>
  
  <p><code>labels array</code> is static array. How do I check <code>incoming array</code> contains all elemnts of <code>labels array</code>.</p>
  
  <p>My attempts</p>
  
  <pre><code>intersectionOfTwoArrays = list(set(incomingLabels) &amp; set(labels))
  if np.array_equal(labels, intersectionOfTwoArrays): 
     //Do somthing 
  </code></pre>
  
  <p>that attempt not succed because <code>intersectionOfTwoArrays's</code> not ordered same as <code>labels array</code></p>
  
  <p>Can anyone help me on that? </p>