Itsnotlupus' Tiny Utilities

small utilities that I'm tired of digging from old scripts to put in new ones.

La data de 07-08-2023. Vezi ultima versiune.

Acest script nu ar trebui instalat direct. Aceasta este o bibliotecă pentru alte scripturi care este inclusă prin directiva meta a // @require https://updategf.qytechs.cn/scripts/468394/1231618/Itsnotlupus%27%20Tiny%20Utilities.js

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Itsnotlupus' Tiny Utilities
// @namespace    Itsnotlupus Industries
// @version      1.17
// @description  small utilities that I'm tired of digging from old scripts to put in new ones.
// @author       Itsnotlupus
// @license      MIT
// ==/UserScript==

/* jshint esversion:11 */
/* jshint -W138 */

/** DOM queries - CSS selectors and XPath */
const $ = (q,d=document)=>d.querySelector(q);
const $$ = (q,d=document)=>d.querySelectorAll(q);
const $$$ = (q,d=document,x=d.evaluate(q,d),a=[],n=x.iterateNext()) => n ? (a.push(n), $$$(q,d,x,a)) : a;

/** calls a function whenever the DOM changes */
const observeDOM = (fn, e=document, config = { attributes: 1, childList: 1, subtree: 1 }, o = new MutationObserver(fn)) => (o.observe(e,config),()=>o.disconnect());

/** check a condition upfront, and on every DOM change until true */
const untilDOM = async (v, e=document, f=v.sup?()=>$(v,e):v) => f() || new Promise((r,_,d = observeDOM(() => (_=f()) && d() | r(_), e)) => 0);

/** promisify setTimeout and setInterval */
const sleep = (w = 100) => new Promise(r=>setTimeout(r, w));
const until = async (v, w=100, t, f=v.sup?()=>$(v):v) => f() || new Promise(r => t=setInterval((s=f()) => s && (clearInterval(t), r(s)), w));

/** slightly less painful syntax to create DOM trees */
const crel = (name, attrs, ...children) => ((e = Object.assign(document.createElement(name), attrs)) => (e.append(...children), e))();

/** same, for SVG content. */
const svg = (name, attrs={}, ...children) => ((e=document.createElementNS('http://www.w3.org/2000/svg', name), _=Object.keys(attrs).forEach(k=>e.setAttribute(k,attrs[k])),__=e.append(...children)) => e)();

/** create a shadow dom with an isolated stylesheet */
const custom = (name, css, dom, e = crel(name), ss = e.attachShadow({mode:'closed'})) => (ss.adoptedStyleSheets = [ (s = new CSSStyleSheet(), s.replaceSync(css),s) ], ss.append(...dom), e);

/** add a stylesheet */
const addStyles = css => document.head.append(crel('style', { type: 'text/css', textContent: css }));

/** stolen from https://gist.github.com/nmsdvid/8807205 */
const slowDebounce = (a,b=250,c=0)=>(...d)=>clearTimeout(c,c=setTimeout(a,b,...d));

/** microtask debounce */
const fastDebounce = (f, l, s=0) => async (...a) => (l = a, !s && (await (s=1), s = 0, f(...l)));

/** remember and shortcut what a (pure) function returns */
const memoize = (f, mkKey=args=>args.join(), cache = Object.create(null)) => (...args) => cache[mkKey(args)] ??= f(...args);

/** requestAnimationFrame wrapper that allows a callback to request another run without referencing itself 
 * Use as: 
 * rAF((time, next) => {
 *   // cool animation code goes here.
 *   next(); // run again next frame
 * });
 */
const rAF = (f, n=t=>f(t,r), r=_=>requestAnimationFrame(n)) => r();

/** define a few event listeners in one shot - call the returned function to remove them. */
const  events = (o, t=window, opts, f=op=>Object.keys(o).forEach(e=>t[op](e,o[e],opts))) => (f("addEventListener"), () => f("removeEventListener"));

/** promisify a @grant-less XHR. probably useless. */
const xhr = (url, type='') => new Promise((r,e,x=Object.assign(new XMLHttpRequest(), {responseType: type,onload() { r(x.response); },onerror:e}),_=x.open('GET',url)) => x.send());

/** fetch and parse */
const fetchDOM = (url, mimeType) => fetch(url).then(r=>r.text()).then(t=>new DOMParser().parseFromString(t,mimeType));
const fetchHTML = url => fetchDOM(url, 'text/html');
const fetchJSON = url => fetch(url).then(r=>r.json());

/** Prefetch a URL */
const prefetch = url => document.head.append(crel('link', { rel: 'prefetch', href: url }));

/** Some sites break the `console` API. This attempts to restore a working console object. */
const fixConsole = (i=crel('iframe',{style:'display:none'}),_=document.body.append(i),c=unsafeWindow.console) => console.log.name!='log' ? (unsafeWindow.console = i.contentWindow.console,()=>(i.remove(),unsafeWindow.console=c)):()=>{};