Help squashing bug

Code Feedback
1

Hi,

On my JavaScript calculator ( https://github.com/zelite/JavaScript-Calculator ), i noticed that when the page is loaded and I try to make the first calculation, e.g: 1 + 2, there is a small freeze in between the + and the 2. The number 2 takes a bit longer to show up. This only happens on the first calculation. If I press AC the calculator is reset to the starting state but the small freeze does not happen again. If I reload the page then the freeze will happen once more at the first calculation.

Do you also see the same issue on your side? Any suggestion on how i can figure out what’s going on? Or maybe someone has seen this behavior before and knows the likely cause for it?

Thanks!

2

Link to some live example.

3

You can use GitHub pages to serve a live version of your working GitHub repos:

4

Oh sorry, it was already live. Forgot to post the right link: https://zelite.github.io/JavaScript-Calculator/

I noticed the problem just shows up on mobile browsers (tested Opera and Chrome for Android)

5

I think I figured it out.

I am using math.js to deal with the calculation. And it seems that only loads the library on the first calculation (some sort of lazy loading must be going on).

So I just make a calculation in the background before the calculator is initialized and from there everything seems to go smoothly.

6

Well spotted…Clever!

I totally would have ignored that and given up - it’s only a split second delay on my machine. Kudos for sticking with it.