Aleksei Cherevatov lemming

Source: https://wiki.archlinux.org/title/Visual_Studio_Code#Blurry_text_under_Wayland

Due to Electron issues Visual Studio Code defaults to run under XWayland which may cause blurry text if you're using HiDPI screens.

In order to fix this issue you need to force Electron to run under Wayland by adding --enable-features=UseOzonePlatform --ozone-platform=wayland, for example you'll be launching VSCode like

$ code --enable-features=UseOzonePlatform --ozone-platform=wayland

This fix can be made permanent by creating a .desktop file or by directly editing /usr/share/applications/visual-studio-code.desktop

Here is the best setup (I think so :D) for K-series Keychron keyboards on Linux.

Note: many newer Keychron keyboards use QMK as firmware and most tips here do not apply to them. Maybe the ones related to Bluetooth can be useful, but everything related to Apple's keyboard module (hid_apple) on Linux, won't work. As far as I know, all QMK-based boards use the hid_generic module instead. Examples of QMK-based boards are: Q, Q-Pro, V, K-Pro, etc.

Most of these commands have been tested on Ubuntu 20.04 and should also work on most Debian-based distributions. If a command happens not to work for you, take a look in the comment section.

Make Fn + F-keys work (NOT FOR QMK-BASED BOARDS)

Older Keychron keyboards (those not based on QMK) use the hid_apple driver on Linux, even in the Windows/Android mode, both in Bluetooth and Wired modes.

RxJS 5 Operators By Example

⚠️ UPDATE: I have moved the contents of this gist plus more to http://www.learnrxjs.io and https://github.com/btroncone/learn-rxjs. For expanded examples, explanations, and resources, please check out this new location!

A complete list of RxJS 5 operators with easy to understand explanations and runnable examples.

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

Mac OSX Spotlight Enhancement

Add this to Info.plist in /System/Library/Spotlight/RichText.mdimporter/Contents/ and Spotlight will search for source code files.

<string>public.c-header</string>
<string>public.c-plus-plus-header</string>
<string>public.c-source</string>
<string>public.objective-c-source</string>
public.c-plus-plus-source

	/*
	A worklet for recording in sync with AudioContext.currentTime.

	More info about the API:
	https://developers.google.com/web/updates/2017/12/audio-worklet

	How to use:

	1. Serve this file from your server (e.g. put it in the "public" folder) as is.

	/**
	* Updates the passed dialog to retain focus and restore it when the dialog is closed. Won't
	* upgrade a dialog more than once. Supports IE11+ and is a no-op otherwise.
	* @param {!HTMLDialogElement} dialog to upgrade
	*/
	var registerFocusRestoreDialog = (function() {
	if (!window.WeakMap \|\| !window.MutationObserver) {
	return function() {};
	}
	var registered = new WeakMap();

	function mapValues(obj, fn) {
	return Object.keys(obj).reduce((result, key) => {
	result[key] = fn(obj[key], key);
	return result;
	}, {});
	}

	function pick(obj, fn) {
	return Object.keys(obj).reduce((result, key) => {
	if (fn(obj[key])) {

	#!/bin/sh

	# Firefox Developer Edition install
	# No need to download this script, just run it on your terminal:
	# $ curl -L git.io/firefoxdev \| sh
	# When you need to update Firefox Developer Edition, run this script again.

	START_CMD="firefox-dev"
	INSTALLATION_DIR="/opt/${START_CMD}"