| '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)); | |
| }; |