Mykola Harmash mykolaharmash

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

Frontend Development

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Commit Message Conventions

These rules are adopted from the AngularJS commit conventions.

Goals
Generating CHANGELOG.md
- Recognizing unimportant commits
- Provide more information when browsing the history
Format of the commit message
Subject line

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

Async/Await for Swift

Proposal: SE-XXXX
Authors: Chris Lattner, Joe Groff

Introduction

Modern Cocoa development involves a lot of asynchronous programming using closures and completion handlers, but these APIs are hard to use. This gets particularly problematic when many asynchronous operations are used, error handling is required, or control flow between asynchronous calls gets complicated. This proposal describes a language extension to make this a lot more natural and less error prone.

This paper introduces a first class Coroutine model to Swift. Functions can opt into to being async, allowing the programmer to compose complex logic involving asynchronous operations, leaving the compiler in charge of producing the necessary closures and state machines to implement that logic.

	#!/usr/bin/env python
	# -- mode: python, coding: utf-8 --
	#
	# This incredible piece of code makes git a bit Polish, a bit Western Ukrainian,
	# пше прошу пана
	# Joke is based on fact that 'git' is 'пше' in qwerty/йцукен layouts
	#
	# (c) 2013 Alexander Solovyov under terms of WTFPL

	import sys

	module Modules.Auth.Login.Msg exposing (..)

	import Http exposing (Error)

	import Types exposing (User)


	type LoginMsg
	= LoginUpdateEmail String
	\| LoginUpdatePassword String

	/*:
	This is a concept re-implementation of the @Binding and @State property wrappers from SwiftUI

	The only purpose of this code is to implement those wrappers myself
	just to understand how they work internally and why they are needed,

	⚠️ This is not supposed to be a reference implementation nor cover all
	subtleties of the real Binding and State types.
	The only purpose of this playground is to show how re-implementing
	them myself has helped me understand the whole thing better

	# to generate your dhparam.pem file, run in the terminal
	openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

	// Add on element with overflow
	-webkit-mask-image: -webkit-radial-gradient(white, black);