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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;
- }
- */
- };
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