NostraDavid's Knowledge Base - Javascript code snippets and regex

document.querySelectorAll(".expand")
		.forEach(el => {
			if (el.innerText == "[+]") {
				el.click();
			}
		});

document.querySelectorAll(".bighead")
		.forEach(el => {
			el.parentElement
				.removeChild(el)
			});

const CONSOLE_STYLE = "background: #800; color: #fff; padding: 2px";
console.log('%cService worker installing', CONSOLE_STYLE);

let ys = Array.from(document.getElementsByClassName("score likes"))
					.filter(e => parseInt(e.title) < 3)
					.map(e => e.parentElement.parentElement.parentElement)
					.map(el => el.querySelector(`[data-event-action*="delete"]`));
// pick everything after the 77th comment
ys = ys.slice(77, ys.length - 1);
ys.map(e => e.click());

const cities = ["Den Haag","Den Haag",
						"Utrecht", "Utrecht",
						"Arnhem", "Arnhem",
						"MiddelBurg", "MiddelBurg",
						"MiddelBurg"];
const uniqueCities = [...new Set(cities)];
// ["Den Haag", "Utrecht", "Arnhem", "MiddelBurg"]

let xs = document.querySelectorAll("[query goes here]");
let i = 0;
let id = setInterval(() => {console.log(i); xs[i].click(); i++;}, 1100);
clearInterval(id);

Array.from(document.getElementsByClassName("subreddit hover"))
							 .filter(el => el.innerHTML == "TheLastOfUs2")
							 .map(el => el.parentElement.parentElement)
							 .map(el => {
								 // subselection apparently works
								 el.querySelector(`[data-event-action*="delete"]`)
							 })
							 .map(el => el.click());

const groupBy = (xs, key) => xs.reduce((acc, x) => {
(acc[x[key]] = acc[x[key]] || []).push(x);
return acc;
}, {});
let emoticons = Array.from(document.querySelectorAll(`.chat-line__message--emote[alt]`));
let groupedEmoticons = groupBy(emoticons, 'alt');
let listedEmoticons = [];
for (const key in groupedEmoticons) {
if (groupedEmoticons.hasOwnProperty(key)) {
const el = groupedEmoticons[key];
listedEmoticons.push({key: key, length: el.length});
}
}
listedEmoticons.sort((a, b) => b.length - a.length)
					 .slice(0,6)
					 .sort((a, b) => a.length - b.length)
					 .reduce((acc, el) => `${el.length}x ${el.key} ` + acc);