Calculator project feedback!

need feedback for my Calculator project
https://codepen.io/akash9817/pen/NWKjxmM?editors=1011

very nice, the only thing I could complain about is that entering a float starting with dot after an operator does not return a zero at the beginning of number, ex: 1 + .1 should be 1 + 0.1,
I personally am having trouble with this project, if u can help with any tips that’d be great, look at my pin