flying-hero
96f6318101
新增: - backend/venv/ - Python 虚拟环境 - backend/start.sh - 启动脚本（使用虚拟环境） - backend/requirements.txt - 依赖列表 - .gitignore - 忽略虚拟环境和缓存文件 说明: - 每个项目使用独立虚拟环境 - 避免依赖冲突 - 启动脚本自动创建和激活虚拟环境
20 lines
626 B
JavaScript
20 lines
626 B
JavaScript
'use strict';
|
|
|
|
var ToNumber = require('./ToNumber');
|
|
|
|
var $isNaN = require('math-intrinsics/isNaN');
|
|
var $isFinite = require('math-intrinsics/isFinite');
|
|
var $sign = require('math-intrinsics/sign');
|
|
var abs = require('math-intrinsics/abs');
|
|
var floor = require('math-intrinsics/floor');
|
|
var modulo = require('math-intrinsics/mod');
|
|
|
|
// https://262.ecma-international.org/6.0/#sec-touint8
|
|
|
|
module.exports = function ToUint8(argument) {
|
|
var number = ToNumber(argument);
|
|
if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
|
|
var posInt = $sign(number) * floor(abs(number));
|
|
return modulo(posInt, 0x100);
|
|
};
|