JavaScript: Object.is

By Xah Lee. Date: . Last updated: .

New in JS2015.

Object.is(value1, value2)
similar to value1 === value2, except when values are signed zeroes and NaN . [see Equality]
console.log( NaN === NaN); // false
console.log( Object.is( NaN, NaN) ); // true

console.log( -0 === +0); // true
console.log( Object.is (-0, +0) ); // false
BUY
ΣJS
JavaScript in Depth

JS Obj Reference

Object Object

prototype