How to distinguish -0 and 0 in JavaScript

Question

The strict equality operator identifies 0 and -0 as being equal.

console.log(0 === -0) // true

... so is Math.sign the only way to distinguish these values?

Does this answer your question? [Differentiating +0 and -0](https://stackoverflow.com/questions/7223717/differentiating-0-and-0) — ASDFGerte, Apr 04 '20 at 21:51

score 2 · Accepted Answer · answered Apr 04 '20 at 21:49

2

You can also use Object.is:

const num1 = 0;
const num2 = -0;
console.log(Object.is(num1, num2));
console.log(Object.is(num1, num1));

answered Apr 04 '20 at 21:49

1 Answers1