Why doesn't math work in js?

Question

JavaScript

All in all, this is the thing. There is a piece of code written in as3 and its analogue in haxe.
I needed to use it in js, so I rewrote it, but it doesn't work.
Then I took haxe and compiled it into js, ​​but the problem remained the same.

public static function getInt(min:Int, max:Int):Int {
        seed = 214013 * seed + 2531011;
        return min+(seed ^ (seed>>15))%(max-min+1);
}

function getInt(min, max) {
        seed = 214013 * seed + 2531011;
        return min+(seed ^ (seed>>15))%(max-min+1);
}

Why doesn't the math work?
UPD:
the code does not work because out of ten iterations, six are always minimal, and six are the last.

Answer 1

The bit operators make any number a 32-bit integer. When seed becomes greater than 4294967295, then 0 is used instead.
upd seed ^ (seed >> 15) becomes always 0.
upd2 when seed > 2 ³² seed >> 15 is always 0, when seed > 2 ⁵⁴ seed ^ 0 is always 0
upd3 after experimenting, I found out that it is essentially correct, but inaccurate, numbers greater than 2 ^{32 + 53} binary operators turn into 0

Answer 2

What is the seed variable, or rather what type is it, you can try to wrap it in Integer
parseInt(seed);