blob: 794582ad8d42bcdc6ef7447c3767eb2405d61b37 [file] [log] [blame]
'use strict';
var GetIntrinsic = require('get-intrinsic');
var $TypeError = GetIntrinsic('%TypeError%');
var isNaN = require('../../helpers/isNaN');
var Type = require('../Type');
// https://262.ecma-international.org/11.0/#sec-numeric-types-number-unaryMinus
module.exports = function NumberUnaryMinus(x) {
if (Type(x) !== 'Number') {
throw new $TypeError('Assertion failed: `x` argument must be a Number');
}
if (isNaN(x)) {
return NaN;
}
return -x;
};