Kevin Cameron kevinkace

Maker of web stuff @ ArenaNet

kevinkace / object-reduce.js

Created October 24, 2019 04:32

Reduce an object

	function objectReduce(obj, cb, acc) {
	let idx = 0;

	for (let key in obj) {
	acc = cb(acc, { key, value : obj[key] }, idx++);
	}

	return acc;
	}

kevinkace / someValue.js

Last active November 1, 2019 21:28

like [].find(), but return a value of your choosing

	function findValue(collection, predicate) {
	let value;

	collection.some(c => {
	const p = predicate(c)

	if (p) {
	value = p;

	return true;

kevinkace / timer.js

Last active June 17, 2021 20:12

see how long things take, without the fuckery of perf_hooks, so it's probably not terribly accurate, but it's easy

	// usage:
	// const timer = new Timer("timerName");
	// doThing();
	// timer.measure("didThing");
	// await doThing2();
	// timer.measure("didThing2");
	// timer.report();
	// ┌─────────┬─────────────┬───────────────┬──────────┬───────────┐
	// │ (index) │ name │ time │ duration │ sincePrev │
	// ├─────────┼─────────────┼───────────────┼──────────┼───────────┤

kevinkace / errlog parser.js

Created May 15, 2025 03:09

	[ ...document.querySelectorAll("tbody tr") ]
	.filter(tr => tr.querySelector("td[data-text]")?.attributes["data-text"].value.includes("404"))
	.map(tr => {
	const td = tr.querySelector("[data-text]");
	const ts = tr.querySelector("td:nth-child(2)");

	const { value } = td.attributes["data-text"];

	const url = value.match(/url: (.*?)[;}]/)[1];
	const referer = value.match(/referer: (.*?)[;}]/);