Juraj Mäsiar Juraj-Masiar

Hello :) I'm web-extensions developer and author of all FastAddons. I'm here to make you more productive.

Juraj-Masiar / firefox_for_android.polyfill.ts

Last active February 8, 2024 16:02

Polyfill for the missing browser.window API in the Firefox for Android

	if (!browser.windows) browser.windows = {};
	if (!browser.windows.getCurrent) {
	browser.windows.getCurrent = async (getInfo?: browser.windows.GetInfo): Promise<browser.windows.Window> => {
	const tabs = await browser.tabs.query({});
	const activeTab = tabs.find(tab => tab.active);
	return {
	id: activeTab?.windowId ?? 1,
	title: activeTab?.title ?? '',
	focused: true,
	alwaysOnTop: false,

Juraj-Masiar / math_random_collision.js

Last active October 5, 2023 20:35

How many times do you need to call `Math.random()` to get a collision? (Firefox will tell you, Chrome may not!)

	// This is a simple experiment to see how likely it is to get a collision when using Math.random()
	(() => {
	const numbersSet = new Set();
	while (true) {
	const random = Math.random();
	// const random = crypto.randomUUID();
	if (numbersSet.has(random)) {
	console.log(`Set size: ${numbersSet.size.toLocaleString()}, collision: ${random}`);
	break;
	}