| 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 |
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
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.
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.
If you're building JavaScript apps, you might already be familiar with some tools that compile JavaScript code to equivalent JavaScript code:
| # 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 |
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.
Reference(s):
http://www.sourcegear.com/diffmerge/downloads.php - get the installer version, NOT the dmg version
If a project has to have multiple git repos (e.g. Bitbucket and Github) then it's better that they remain in sync.
Usually this would involve pushing each branch to each repo in turn, but actually Git allows pushing to multiple repos in one go.
If in doubt about what git is doing when you run these commands, just
@kangax created a new interesting quiz, this time devoted to ES6 (aka ES2015). I found this quiz very interesting and quite hard (made myself 3 mistakes on first pass).
Here we go with the explanations:
(function(x, f = () => x) {
raspivid -o - -t 0 -vf -hf -fps 30 -b 6000000 | ffmpeg -re -ar 44100 -ac 2 -acodec pcm_s16le -f s16le -ac 2 -i /dev/zero -f h264 -i - -vcodec copy -acodec aac -ab 128k -g 50 -strict experimental -f flv rtmp://a.rtmp.youtube.com/live2/<SESSION>
you can tweak -b and -fps to your liking. the settings above work well for 1080p. by not specifying width or height we get the full 1920x1080 resolution from the raspi camera