Parse Float has a rounding limit? How can I fix this?

Question

I set up a system that parses a compact data string into JSON. I\'m using a 19 digit number to store ids. Unfortunately any number greater than 17 digits, parseFloat()

Answer 1

JavaScript has only one numeric type, which is an IEEE 754 double precision floating-point. That means, you have a maximum of 52 bits of precision, which is a bit more than 15 decimal places.

If you need more precision than that, you have to use a bignum library or work with strings.