main repo

node_modules/es-abstract/2020/Number/exponentiate.js

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+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+// var isNegativeZero = require('is-negative-zero');
+
+var $pow = GetIntrinsic('%Math.pow%');
+
+var $TypeError = require('es-errors/type');
+
+/*
+var abs = require('../../helpers/abs');
+var isFinite = require('../../helpers/isFinite');
+var isNaN = require('../../helpers/isNaN');
+
+var IsInteger = require('../IsInteger');
+*/
+
+// https://262.ecma-international.org/11.0/#sec-numeric-types-number-exponentiate
+
+/* eslint max-lines-per-function: 0, max-statements: 0 */
+
+module.exports = function NumberExponentiate(base, exponent) {
+	if (typeof base !== 'number' || typeof exponent !== 'number') {
+		throw new $TypeError('Assertion failed: `base` and `exponent` arguments must be Numbers');
+	}
+	return $pow(base, exponent);
+	/*
+	if (isNaN(exponent)) {
+		return NaN;
+	}
+	if (exponent === 0) {
+		return 1;
+	}
+	if (isNaN(base)) {
+		return NaN;
+	}
+	var aB = abs(base);
+	if (aB > 1 && exponent === Infinity) {
+		return Infinity;
+	}
+	if (aB > 1 && exponent === -Infinity) {
+		return 0;
+	}
+	if (aB === 1 && (exponent === Infinity || exponent === -Infinity)) {
+		return NaN;
+	}
+	if (aB < 1 && exponent === Infinity) {
+		return +0;
+	}
+	if (aB < 1 && exponent === -Infinity) {
+		return Infinity;
+	}
+	if (base === Infinity) {
+		return exponent > 0 ? Infinity : 0;
+	}
+	if (base === -Infinity) {
+		var isOdd = true;
+		if (exponent > 0) {
+			return isOdd ? -Infinity : Infinity;
+		}
+		return isOdd ? -0 : 0;
+	}
+	if (exponent > 0) {
+		return isNegativeZero(base) ? Infinity : 0;
+	}
+	if (isNegativeZero(base)) {
+		if (exponent > 0) {
+			return isOdd ? -0 : 0;
+		}
+		return isOdd ? -Infinity : Infinity;
+	}
+	if (base < 0 && isFinite(base) && isFinite(exponent) && !IsInteger(exponent)) {
+		return NaN;
+	}
+	*/
+};