title: Array splice removes all elements from array
body: <pre><code>var currentAge = 26;
  var maxAge = 100;
  var amountPerDay = 30.50;
  
  var calculation = (((maxAge - currentAge) * 365) * amountPerDay);
  console.log(calculation);
  var stringCalc = calculation.toString().split('').splice(2, 0, "9");
  console.log(stringCalc);
  </code></pre>
  
  <p>console.log(stringCalc) shows an empty array. Does this have something to do with the toString method?</p>
  
  <p>Note: I am trying to add the string "9" into the middle of the array, not remove anything from the array.</p>