| 'use strict'; |
| |
| var $TypeError = require('es-errors/type'); |
| var isNaN = require('math-intrinsics/isNaN'); |
| var isFinite = require('math-intrinsics/isFinite'); |
| |
| var truncate = require('../truncate'); |
| |
| // https://262.ecma-international.org/14.0/#sec-numeric-types-number-remainder |
| |
| module.exports = function NumberRemainder(n, d) { |
| if (typeof n !== 'number' || typeof d !== 'number') { |
| throw new $TypeError('Assertion failed: `n` and `d` arguments must be Numbers'); |
| } |
| |
| // If either operand is NaN, the result is NaN. |
| // If the dividend is an infinity, or the divisor is a zero, or both, the result is NaN. |
| if (isNaN(n) || isNaN(d) || !isFinite(n) || d === 0) { |
| return NaN; |
| } |
| |
| // If the dividend is finite and the divisor is an infinity, the result equals the dividend. |
| // If the dividend is a zero and the divisor is nonzero and finite, the result is the same as the dividend. |
| if (!isFinite(d) || n === 0) { |
| return n; |
| } |
| |
| if (!isFinite(n) || !isFinite(d) || n === 0 || d === 0) { |
| throw new $TypeError('Assertion failed: `n` and `d` arguments must be finite and nonzero'); |
| } |
| var quotient = n / d; |
| var q = truncate(quotient); |
| var r = n - (d * q); |
| if (r === 0 && n < 0) { |
| return -0; |
| } |
| return r; |
| }; |