| 'use strict'; |
| |
| var GetIntrinsic = require('get-intrinsic'); |
| |
| var $TypeError = GetIntrinsic('%TypeError%'); |
| |
| var isNaN = require('../../helpers/isNaN'); |
| |
| var Type = require('../Type'); |
| |
| // https://262.ecma-international.org/11.0/#sec-numeric-types-number-lessThan |
| |
| module.exports = function NumberLessThan(x, y) { |
| if (Type(x) !== 'Number' || Type(y) !== 'Number') { |
| throw new $TypeError('Assertion failed: `x` and `y` arguments must be Numbers'); |
| } |
| |
| // If x is NaN, return undefined. |
| // If y is NaN, return undefined. |
| if (isNaN(x) || isNaN(y)) { |
| return void undefined; |
| } |
| |
| // shortcut for the actual spec mechanics |
| return x < y; |
| }; |