Avoiding problems with JavaScript's weird decimal calculations

Question

I just read on MDN that one of the quirks of JS\'s handling of numbers due to everything being \"double-precision 64-bit format IEEE 754 values\" is that when you d

Answer 1

You need a bit of error control.

Make a little double comparing method:

int CompareDouble(Double a,Double b) {
    Double eplsilon = 0.00000001; //maximum error allowed

    if ((a < b + epsilon) && (a > b - epsilon)) {
        return 0;
    }
    else if (a < b + epsilon)
        return -1;
    }
    else return 1;
}