loskael

const angle = (time = '00:00') => {
  let [hour, minute] = time.split(':').map(v => parseInt(v, 10));
  hour += minute / 60;
  let ah = (360 / 12) * (hour % 12);
  let am = (360 / 60) * minute;
  let diff = Math.abs(ah - am);
  return diff > 180 ? 360 - diff : diff;
};

loskael

language: node_js
sudo: true
node_js: node
cache:
  directories:
    - node_modules
install:
  - npm install
before_script:
  - git config user.name "Travis-CI"

loskael

<!-- test pass with CryptoJS v3.1.2 -->
<script src="rollups/tripledes.js"></script>
<script src="components/mode-ecb.js"></script>
<script>
/**
 * Encrypt message by DES in ECB mode and Pkcs7 padding scheme
 *
 * NOTE: DES is weak, please use 3DES(Triple DES) or AES
 * 
 * @param  {String} message

loskael

ssh

    -C  压缩数据传输
    -f  后台登录用户名密码
    -N  不执行shell[与 -g 合用]
    -g  允许打开的端口让远程主机访问        
    -L  本地端口转发
    -R  远程端口转发

-p ssh 端口

loskael

// 一个每天签到领奖的小功能，在每天的11~13点和18~20点开放
// 普通用户每天可以领取一次，会员用户可以在每个时段分别领取一次
if (isVip) {
  // 会员
  if ([11, 12, 13].includes(hour)) {
    // TODO 判断该时段是否领取 并 领取
  }
  if ([18, 19, 20].includes(hour)) {
    // TODO 判断该时段是否领取 并 领取
  }

loskael

问题回顾

系统升级到 macOS BigSur 11 之后，brew search 时一直报下面这个错：

Cask 'deeper' definition is invalid: invalid 'depends_on macos' value: unknown or unsupported macOS version: :mavericks

排查过程

1. #72077 #58046 问题依旧
2. 卸载重装 问题依旧
3. 无数次 brew update-reset brew doctor brew update brew upgrade 问题依旧

loskael

/**
 * 数字格式化
 * @param {number} v value 被格式化的数
 * @param {int} f toFixed 保留位数
 * @param {int} d 被除数
 * @param {Array<String>} u 单位
 * @param {String} b 备胎
 * @returns 
 */

loskael

function xString(left, right) {
  let ret = '';
  let lStr = String(left);
  let rStr = String(right);
  if (lStr.length < rStr.length) {
    [lStr, rStr] = [rStr, lStr];
  }
  let len = lStr.length;
  rStr = rStr.padEnd(len, rStr);
  for (let i = 0; i < len; i++) {

loskael

(function (script, callback) {
  var iframe = document.createElement('iframe');
  var blob = new Blob([`<script>(${script.toString()})();</script>`], { 'type': 'text/html' });
  iframe.src = URL.createObjectURL(blob);
  iframe.style.display = 'none';
  iframe.onload = function () {
    typeof callback === 'function' && callback(iframe.contentWindow);
  };
  document.body.appendChild(iframe);
})(