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You mean back in the 1.099999904632568359375 days?

Probably back in 1.100000004632568359375 days.

Wait, when did HN become reddit?!

I do enjoy the occasional joke on hn - for reasons I don't understand they seem to be frowned upon.

> One point which often bites people which isn't highlighted in this article, is that due to having an explicit sign bit 0 and -0 have different encodings, but in most cases you'll want them to compare equal. So just comparing the bits won't do.

How does JS do it? (0 / -1) === (0 / 1) is true.

    const n = 0/-1, p = 0/1;
    n === p; // true
    1/n === 1/p; // false
    1/n === -Infinity; // true
    1/p === Infinity; // true
    Infinity === -Infinity; // false

And because of that `x + 0` is not always equal to `x`.