Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma
You can get the list of supported formats with:
ffmpeg -formats
You can get the list of installed codecs with:
// === Arrays | |
var [a, b] = [1, 2]; | |
console.log(a, b); | |
//=> 1 2 | |
// Use from functions, only select from pattern | |
var foo = () => [1, 2, 3]; |
The count of contributions (summary of Pull Requests, opened issues and commits) to public repos at GitHub.com from Wed, 21 Sep 2022 till Thu, 21 Sep 2023.
Only first 1000 GitHub users according to the count of followers are taken. This is because of limitations of GitHub search. Sorting algo in pseudocode:
githubUsers
.filter(user => user.followers > 1000)
Key/Command | Description |
---|---|
Tab | Auto-complete files and folder names |
Ctrl + A | Go to the beginning of the line you are currently typing on |
Ctrl + E | Go to the end of the line you are currently typing on |
Ctrl + U | Clear the line before the cursor |
Ctrl + K | Clear the line after the cursor |
Ctrl + W | Delete the word before the cursor |
Ctrl + T | Swap the last two characters before the cursor |
#!/bin/bash | |
# | |
# git-mv-with-history -- move/rename file or folder, with history. | |
# | |
# Moving a file in git doesn't track history, so the purpose of this | |
# utility is best explained from the kernel wiki: | |
# | |
# Git has a rename command git mv, but that is just for convenience. | |
# The effect is indistinguishable from removing the file and adding another | |
# with different name and the same content. |
Install the React Developer Tools Chrome Extension.
Go to the egghead website, i.e. Getting Started with Redux
Click View -> Developer -> Javascript Console
, then the React
tab, then the <NextUpLessonList ...>
tag.
Click back to the Console
tab, then run:
I heard some points of criticism to how React deals with reactivity and it's focus on "purity". It's interesting because there are really two approaches evolving. There's a mutable + change tracking approach and there's an immutability + referential equality testing approach. It's difficult to mix and match them when you build new features on top. So that's why React has been pushing a bit harder on immutability lately to be able to build on top of it. Both have various tradeoffs but others are doing good research in other areas, so we've decided to focus on this direction and see where it leads us.
I did want to address a few points that I didn't see get enough consideration around the tradeoffs. So here's a small brain dump.
"Compiled output results in smaller apps" - E.g. Svelte apps start smaller but the compiler output is 3-4x larger per component than the equivalent VDOM approach. This is mostly due to the code that is usually shared in the VDOM "VM" needs to be inlined into each component. The tr
<!-- | |
1. Download the Android Jelly Bean fonts and the Symbola font: | |
https://www.dropbox.com/s/tvtzcnzkvbe0nrt/jelly-bean-fonts.zip | |
http://users.teilar.gr/~g1951d/Symbola707.zip | |
2. unzip the files and put AndroidEmoji.ttf and Symbola.ttf (and any of the other fonts that strike your fancy) | |
in your ~/.fonts/ directory | |
3. run `fc-cache -f`. You can check to make sure the new fonts | |
were installed with `fc-list`. You'll probably want to grep the copious output for Symbola or Emoji |