live at https://mienaiyami.github.io/js-calc-eval/
here's what i made when i didn't know about eval() https://github.com/mienaiyami/js-calc-regex
live at https://mienaiyami.github.io/js-calc-eval/
here's what i made when i didn't know about eval() https://github.com/mienaiyami/js-calc-regex