is-zero

is ±0 ?

Installation

$ npm install is-zero

API

• is0.isZero(x: number): boolean
• is0.isPositiveZero(x: number): boolean
• is0.isNegativeZero(x: number): boolean

Example

var is0 = require("is-zero");
 
console.log(is0.isZero(+0)); // => true
console.log(is0.isZero(-0)); // => true
console.log(is0.isPositiveZero(+0)); // => true
console.log(is0.isPositiveZero(-0)); // => false
console.log(is0.isNegativeZero(+0)); // => false
console.log(is0.isNegativeZero(-0)); // => true

License

MIT