77 lines
1.7 KiB
JavaScript
77 lines
1.7 KiB
JavaScript
'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;
|
|
}
|
|
*/
|
|
};
|