title: Typescript never gives any error for array & tuples
body: <p>It never gives any array. Array accept only for one type. but tuples can allow multiple values.</p>
  <pre><code>var myTuple = [10,&quot;Hello&quot;];
  console.log(myTuple[1]);
  
  var myArray:number[] = [10,20,&quot;Hello&quot;];
  console.log(myArray[2]);
  </code></pre>
  <p>[+] Update : my question, why doesn't it give any run time errors ?</p>