/**
* @author [Tristan Valcke]{@link https://github.com/Itee}
* @license [BSD-3-Clause]{@link https://opensource.org/licenses/BSD-3-Clause}
*
* @module sources/cores/numbers/isZero
* @desc Export function to validate if a value is zero, with a special sign
* @example
*
* import { isZero } from 'itee-validators'
*
* if( isZero( value ) ) {
* //...
* } else {
* //...
* }
*
*/
// Todo: negations
/**
* Check if the given data is zero
*
* @param data {*} The data to check against the zero value
* @returns {boolean} true if data is zero, false otherwise
*/
export function isZero ( data ) {
//Todo protect truthy values
return ( data === 0 )
}
/**
* Check if the given data is a positive zero
*
* @param data {*} The data to check against the positive zero value
* @returns {boolean} true if data is a positive zero, false otherwise
*/
export function isZeroPositive ( data ) {
return ( data === 0 && ( 1 / data ) === Number.POSITIVE_INFINITY )
}
/**
* Check if the given data is a negative zero
*
* @param data {*} The data to check against the negative zero value
* @returns {boolean} true if data is a negative zero, false otherwise
*/
export function isZeroNegative ( data ) {
return ( data === 0 && ( 1 / data ) === Number.NEGATIVE_INFINITY )
}