this post was submitted on 04 Jun 2025
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[–] [email protected] 8 points 4 days ago (3 children)

I know nothing about javascript, what is wrong with using + for math? perhaps naively, I'd say it looks suited for the job

[–] [email protected] 15 points 4 days ago (1 children)

The correct way to do it is to load a 500mb library that has an add function in it.

[–] [email protected] 0 points 4 days ago* (last edited 4 days ago)

Point taken but the one I use is only ~200k for the whole package, ~11k for the actual file that gets loaded

[–] [email protected] 6 points 4 days ago

It's much better to make your own function that uses bitwise operations to do addition.

function add(a, b) {
    while (b !== 0) {
        // Calculate carry
        let carry = a & b;

        // Sum without carry
        a = a ^ b;

        // Shift carry to the left
        b = carry << 1;
    }
    return a;
}

(For certain definitions of better.)

[–] [email protected] 1 points 4 days ago* (last edited 4 days ago)

The native arithmetic operators are prone to floating point rounding errors