ramda-adjunct
Version:
Ramda Adjunct is the most popular and most comprehensive set of utilities for use with Ramda, providing a variety of useful, well tested functions with excellent documentation.
22 lines (21 loc) • 601 B
JavaScript
import { identical, curryN } from 'ramda';
/**
* Checks if value is a negative zero (-0).
*
* @func isNegativeZero
* @memberof RA
* @since {@link https://char0n.github.io/ramda-adjunct/2.22.0|v2.22.0}
* @category Type
* @sig * -> Boolean
* @param {*} val The value to test
* @return {boolean}
* @see @see {@link RA.isPositiveZero|isPositiveZero}
* @example
*
* RA.isNegativeZero(-0); //=> true
* RA.isNegativeZero(+0); //=> false
* RA.isNegativeZero(0); //=> false
* RA.isNegativeZero(null); //=> false
*/
var isNegativeZero = curryN(1, identical(-0));
export default isNegativeZero;