Calculator Task

Calculator Task
0.0 0

#1

The functionality is almost finished, and if possible I’d love feedback for the structure and code.
Thanks in advance.
(http://codepen.io/bencarp/full/yMRyQg/)
http://codepen.io/bencarp/full/yMRyQg/
(For everyone and @kevcomedia @P1xt @Cowwy @gunhoo93)