Build a JavaScript Calculator

Code Feedback
1

Here is what I have done so far would be welcoming comments and feedback about this.
[Calculator here] (http://codepen.io/amjad5/full/amazgG/)

2

Good so far.

  • You allow multiple decimal places in a number.
  • If you press the wrong operator you can’t change it. If you press CE at this point you loose everything
  • Leading zeros are allowe eg) 000003÷001.1= [no answer]