main repo

node_modules/es-abstract/2021/Number/unaryMinus.js

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+'use strict';
+
+var $TypeError = require('es-errors/type');
+
+var isNaN = require('../../helpers/isNaN');
+
+// https://262.ecma-international.org/11.0/#sec-numeric-types-number-unaryMinus
+
+module.exports = function NumberUnaryMinus(x) {
+	if (typeof x !== 'number') {
+		throw new $TypeError('Assertion failed: `x` argument must be a Number');
+	}
+	if (isNaN(x)) {
+		return NaN;
+	}
+	return -x;
+};