| 'use strict'; |
| |
| var $TypeError = require('es-errors/type'); |
| |
| var ToIntegerOrInfinity = require('./ToIntegerOrInfinity'); |
| |
| var isNaN = require('math-intrinsics/isNaN'); |
| |
| // https://262.ecma-international.org/15.0/#sec-makefullyear |
| |
| module.exports = function MakeFullYear(year) { |
| if (typeof year !== 'number') { |
| throw new $TypeError('Assertion failed: `year` must be a Number'); |
| } |
| |
| if (isNaN(year)) { |
| return NaN; // step 1 |
| } |
| |
| var truncated = ToIntegerOrInfinity(year); // step 2 |
| if (0 <= truncated && truncated <= 99) { |
| return 1900 + truncated; // step 3 |
| } |
| |
| return truncated; // step 4 |
| }; |