Aside from rounding I have 2 reasons to not use them where (financial) precision is necessary: - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refere

Aside from rounding I have 2 reasons to not use them where (financial) precision is necessary: - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/MAX_SAFE_INTEGER https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe... (it's the same in other languages) - if results are not exactly reversible then you cannot implement verification and that hinders defensive programming