hexo/node_modules/es-abstract/2020/Number/unaryMinus.js

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2023-09-25 15:58:56 +08:00
'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;
};