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Last change
on this file since d565449 was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
Update repo after prototype presentation
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File size:
1.2 KB
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1 | 'use strict';
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2 |
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3 | var $TypeError = require('es-errors/type');
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4 |
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5 | var isNaN = require('../../helpers/isNaN');
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6 | var isFinite = require('../../helpers/isFinite');
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7 |
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8 | var truncate = require('../truncate');
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9 |
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10 | // https://262.ecma-international.org/14.0/#sec-numeric-types-number-remainder
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11 |
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12 | module.exports = function NumberRemainder(n, d) {
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13 | if (typeof n !== 'number' || typeof d !== 'number') {
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14 | throw new $TypeError('Assertion failed: `n` and `d` arguments must be Numbers');
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15 | }
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16 |
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17 | // If either operand is NaN, the result is NaN.
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18 | // If the dividend is an infinity, or the divisor is a zero, or both, the result is NaN.
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19 | if (isNaN(n) || isNaN(d) || !isFinite(n) || d === 0) {
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20 | return NaN;
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21 | }
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22 |
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23 | // If the dividend is finite and the divisor is an infinity, the result equals the dividend.
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24 | // If the dividend is a zero and the divisor is nonzero and finite, the result is the same as the dividend.
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25 | if (!isFinite(d) || n === 0) {
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26 | return n;
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27 | }
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28 |
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29 | if (!isFinite(n) || !isFinite(d) || n === 0 || d === 0) {
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30 | throw new $TypeError('Assertion failed: `n` and `d` arguments must be finite and nonzero');
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31 | }
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32 | var quotient = n / d;
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33 | var q = truncate(quotient);
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34 | var r = n - (d * q);
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35 | if (r === 0 && n < 0) {
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36 | return -0;
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37 | }
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38 | return r;
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39 | };
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