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util

TL;DR

此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.cn-greasyfork.org/scripts/515720/1477822/util.js 

  1. // ==UserScript==
  2. // @name         util
  3. // @license      MIT
  4. // @description  TL;DR
  5. // @author       https://greasyfork.org/ja/users/705684
  6. // @grant        none
  7. // ==/UserScript==
  8.  
  9. (function() {
  10.     'use strict';
  11.  
  12.     /**
  13.      * format to HH:MM:SS
  14.      * @param {Date} date JavaScript Date object
  15.      * @return {string} HH:MM:SS
  16.      */
  17.     window.formatTime = date => {
  18.         let d = date && date !== 0 ? new Date(date) : Date.now();
  19.         d /= 1000;
  20.         const s = (d | 0) % 60;
  21.         d /= 60;
  22.         d -= new Date().getTimezoneOffset();
  23.         const m = (d | 0) % 60;
  24.         d /= 60;
  25.         const h = (d | 0) % 24;
  26.         return [h, m, s].map(v => v.toString().padStart(2, '0')).join(':');
  27.     };
  28.  
  29.     /**
  30.      * calc PseudoRandom from seed
  31.      * @param {string} seed
  32.      * @return {number} 0 <= x < 1
  33.      */
  34.     window.pseudoRandomBy = async seed => {
  35.         const [a, b] = new Uint8Array(await window.crypto.subtle.digest('SHA-1', (new TextEncoder()).encode(seed)));
  36.         const unique = (a << 8) + b;
  37.         return unique / 0x10000;
  38.     };
  39. })();