JavaScript Calculator Review!

JavaScript Calculator Review!
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#1

I have somewhat completed my calculator I just need some things such as:

  1. A function that prevents back to back decimals, and operations
  2. When I add an operator to a the result of an equation it goes back to the old equation

I really would like to have everyone’s opinion which will help me become a better web developer.

Here’s my project: http://codepen.io/ahenry890/pen/NjBLyY?editors=0100


#2

Hi there, just took a look. One thing I am wondering- is there a reason why you chose to not have the decimal appear until after another numeral is pressed? I thought it wasn’t working at all for a bit.


#3

It’s part of a function that I made to prevent duplicate decimals which isn’t working very well since you are having the problem you just previously stated.


#4

Gotcha.

I am also working on this project, and I hadn’t even thought about the need to prevent a repeating decimal point. Oops. Time to go back to my code…

So it seems like you’ll need some kind of function to check if there is a decimal point anywhere in the “calc” variable, and if so, not push anything.


#5

I just worked out a way to do it in mine using the string.includes() method. You can go check out my code if you want- https://codepen.io/paintingfire/pen/ybPOoQ