You could also use Object.is(), which does make a difference between -0 and 0:
Object.is()
-0
0
Object.is(0, -0) // -> false Object.is(-0, -0) // -> true
Yes! I completely forgot to include that one! Object.is() seems to be a "fixed" === since it also works when comparing NaN, unlike ===.
MDN gives a polyfill code:
if (!Object.is) { Object.is = function(x, y) { // SameValue algorithm if (x === y) { // Steps 1-5, 7-10 // Steps 6.b-6.e: +0 != -0 return x !== 0 || 1 / x === 1 / y; } else { // Step 6.a: NaN == NaN return x !== x && y !== y; } }; }
Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink.
Hide child comments as well
Confirm
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
You could also use
Object.is()
, which does make a difference between-0
and0
:Yes! I completely forgot to include that one!
Object.is() seems to be a "fixed" === since it also works when comparing NaN, unlike ===.
MDN gives a polyfill code: