forked from lix-project/lix-website
21 lines
573 B
JavaScript
21 lines
573 B
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
var ToNumber = require('./ToNumber');
|
||
|
|
|
||
|
|
var $isNaN = require('../helpers/isNaN');
|
||
|
|
var $isFinite = require('../helpers/isFinite');
|
||
|
|
var $sign = require('../helpers/sign');
|
||
|
|
|
||
|
|
var abs = require('./abs');
|
||
|
|
var floor = require('./floor');
|
||
|
|
var modulo = require('./modulo');
|
||
|
|
|
||
|
|
// https://262.ecma-international.org/6.0/#sec-touint8
|
||
|
|
|
||
|
|
module.exports = function ToUint8(argument) {
|
||
|
|
var number = ToNumber(argument);
|
||
|
|
if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
|
||
|
|
var posInt = $sign(number) * floor(abs(number));
|
||
|
|
return modulo(posInt, 0x100);
|
||
|
|
};
|