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- '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;
- };
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