Rameş Aliyev ramesaliyev

Using DiffMerge as your git mergetool (for Mac OS X / macOS)

Reference(s):

Step 1: download and install the DiffMerge OS X Installer

http://www.sourcegear.com/diffmerge/downloads.php - get the installer version, NOT the dmg version

Cheng Lou - On the Spectrum of Abstraction

Cheng Lou, a former member of the React team, gave an incredible talk at React Europe 2016 entitled "On the Spectrum of Abstraction". That talk is available for viewing here: https://www.youtube.com/watch?v=mVVNJKv9esE

It's only a half-hour, but it is mind-blowing. It's worth re-watching two or three times, to let the ideas sink in.

I just rewatched the talk for some research, and wrote down a summary that's semi-transcript-ish. I didn't see any other transcripts for this talk, other than the auto-generated closed captions, so I wanted to share for reference.

Summary

Note:

When this guide is more complete, the plan is to move it into Prepack documentation.
For now I put it out as a gist to gather initial feedback.

A Gentle Introduction to Prepack (Part 1)

If you're building JavaScript apps, you might already be familiar with some tools that compile JavaScript code to equivalent JavaScript code:

Babel lets you use newer JavaScript language features, and outputs equivalent code that targets older JavaScript engines.

Learning Rust

The following is a list of resources for learning Rust as well as tips and tricks for learning the language faster.

Warning

Rust is not C or C++ so the way your accustomed to do things in those languages might not work in Rust. The best way to learn Rust is to embrace its best practices and see where that takes you.

The generally recommended path is to start by reading the books, and doing small coding exercises until the rules around borrow checking become intuitive. Once this happens, then you can expand to more real world projects. If you find yourself struggling hard with the borrow checker, seek help. It very well could be that you're trying to solve your problem in a way that goes against how Rust wants you to work.

macOS - Remove metadata from PDF files

Inspired from: https://www.reddit.com/r/apple/comments/3cbbor/tip_remove_author_data_from_pdf/

Launch Automator.app
In the menubar click File > New > Select Workflow then click Choose
In the left pane search for the item Get Selected Finder Items

	# import library ---------------------------------------------------------------
	import pygame.midi
	import time

	# define all the constant values -----------------------------------------------
	device = 0 # device number in win10 laptop
	instrument = 9 # http://www.ccarh.org/courses/253/handout/gminstruments/
	note_Do = 48 # http://www.electronics.dit.ie/staff/tscarff/Music_technology/midi/midi_note_numbers_for_octaves.htm
	note_Re = 50
	note_Me = 52

	import {useEffect} from 'react'
	import {RecoilRoot, useRecoilState, atom} from 'recoil'

	// User data

	const user1 = {username: 'joe', bio: "You will never see me, unless of course this example is totally broken."}
	const user2 = {username: 'bob', bio: "I am the one true user."}
	const user3 = {username: 'fred', bio: "Just kidding, make way for the new guy."}

	// Recoil atom to store user. The default user is user1, but it will be