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- 'use strict';
- var $TypeError = require('es-errors/type');
- var NumberAdd = require('./add');
- var NumberUnaryMinus = require('./unaryMinus');
- // https://262.ecma-international.org/12.0/#sec-numeric-types-number-subtract
- module.exports = function NumberSubtract(x, y) {
- if (typeof x !== 'number' || typeof y !== 'number') {
- throw new $TypeError('Assertion failed: `x` and `y` arguments must be Numbers');
- }
- return NumberAdd(x, NumberUnaryMinus(y));
- };
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