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- 'use strict';
- var ToNumber = require('./ToNumber');
- var floor = require('./floor');
- var $isNaN = require('../helpers/isNaN');
- // https://262.ecma-international.org/6.0/#sec-touint8clamp
- module.exports = function ToUint8Clamp(argument) {
- var number = ToNumber(argument);
- if ($isNaN(number) || number <= 0) { return 0; }
- if (number >= 0xFF) { return 0xFF; }
- var f = floor(number);
- if (f + 0.5 < number) { return f + 1; }
- if (number < f + 0.5) { return f; }
- if (f % 2 !== 0) { return f + 1; }
- return f;
- };
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