Artur Parkhisenko arturparkhisenko

## supportsNativeHls.js
// From https://github.com/videojs/http-streaming/blob/d258fae646a3a4a6dc2ba26c729710dd8f39876a/src/videojs-http-streaming.js#L430-L464
/**
 * Whether the browser has built-in HLS support.
 */
window._supportsNativeHls = (function() {
  if (!document || !document.createElement) {
    return false;
  }

  const video = document.createElement('video');

## detect-chromecast.js
/**
 * We use this workaround to detect the Chromecast device generation.
 * Unfortunately the Cast Application Framework (CAF) does not have an API for that.
 *
 * cc-1: Chromecast 1st Gen.
 * cc-2: Chromecast 2nd Gen.
 * cc-3: Chromecast 3rd Gen.
 * cc-ultra: Chromecast Ultra
 * cc-builtin: Android TV with Chromecast built-in
 */

## esm-package.md

      
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                arturparkhisenko
                / esm-package.md
            
            
              Created
              October 26, 2021 11:06
                — forked from sindresorhus/esm-package.md
            
              
                Pure ESM package
              
          
    Pure ESM package

The package linked to from here is now pure ESM. It cannot be require()'d from CommonJS.
This means you have the following choices:

Use ESM yourself. (preferred)

  Use import foo from 'foo' instead of const foo = require('foo') to import the package. You also need to put "type": "module" in your package.json and more. Follow the below guide.
If the package is used in an async context, you could use await import(…) from CommonJS instead of require(…).
Stay on the existing version of the package until you can move to ESM.


## fe-vs-be.md

      
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                arturparkhisenko
                / fe-vs-be.md
            
            
              Created
              October 28, 2020 16:17
                — forked from WebReflection/fe-vs-be.md
            
              
                Front End vs Back End in a nutshell.
              
          
    FE vs BE

TL;DR enough of this kind of nonsense

I've been in the field for ~20 years and started as BE developer, and this is a reference for people thinking that because they are on the BE side, they're somehow entitled to:

earn more money
feel superior about FE developers
joke about JavaScript or minimize the FE effort in any way


## ds.csv

          
            Name
            Indexing (Average)
            Search (Average)
            Insertion (Average)
            Deletion (Worst)
            Indexing (Worst)
            Search (Worst)
            Insertion (Worst)
            Deletion (Worst)
            Space

            
              Basic Array
              O(1)
              O(n)
              Undefined
              Undefined
              O(1)
              O(n)
              Undefined
              Undefined
              O(n)

            
              Dynamic Array
              O(1)
              O(n)
              O(n)
              O(n)
              O(1)
              O(n)
              O(n)
              O(n)
              O(n)

            
              Singly-Linked List
              O(n)
              O(n)
              O(1)
              O(1)
              O(n)
              O(n)
              O(1)
              O(1)
              O(n)

            
              Doubly-Linked List
              O(n)
              O(n)
              O(1)
              O(1)
              O(n)
              O(n)
              O(1)
              O(1)
              O(n)

            
              Skip List
              O(log(n))
              O(log(n))
              O(log(n))
              O(log(n))
              O(n)
              O(n)
              O(n)
              O(n)
              O(n log(n))

            
              Hash Table
              Undefined
              O(1)
              O(1)
              O(1)
              Undefined
              O(n)
              O(n)
              O(n)
              O(n)

            
              Binary Search Tree
              O(log(n))
              O(log(n))
              O(log(n))
              O(log(n))
              O(n)
              O(n)
              O(n)
              O(n)
              O(n)

            
              Cartresian Tree
              Undefined
              O(log(n))
              O(log(n))
              O(log(n))
              Undefined
              O(n)
              O(n)
              O(n)
              O(n)

            
              B-Tree
              O(log(n))
              O(log(n))
              O(log(n))
              O(log(n))
              O(log(n))
              O(log(n))
              O(log(n))
              O(log(n))
              O(n)

## Effective_Engineer.md

      
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                arturparkhisenko
                / Effective_Engineer.md
            
            
              Created
              March 16, 2020 03:47
                — forked from rondy/Effective_Engineer.md
            
          
    FWIW: I didn't produce the content presented here (the outline from Edmond Lau's book). I've just copy-pasted it from somewhere over the Internet, but I cannot remember what exactly the original source is. I was also not able to find the author's name, so I cannot give him/her the proper credits.

Effective Engineer - Notes


By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

What's an Effective Engineer?


## iterm2-solarized.md

      
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                arturparkhisenko
                / iterm2-solarized.md
            
            
              Created
              November 21, 2019 13:49
                — forked from kevin-smets/iterm2-solarized.md
            
              
                iTerm2 + Oh My Zsh + Solarized color scheme + Source Code Pro Powerline + Font Awesome + [Powerlevel10k] - (macOS)
              
          
    Default


Powerlevel10k


## ffmpeg.md

      
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                arturparkhisenko
                / ffmpeg.md
            
            
              Created
              October 13, 2019 02:08
                — forked from protrolium/ffmpeg.md
            
              
                using ffmpeg to extract audio from video files
              
          
    ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:

ffmpeg -i input.mp3 output.wma
You can get the list of supported formats with:

ffmpeg -formats
Convert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:

  
## fonts-multi-language-support-test-string.js
// https://pages.ucsd.edu/~dkjordan/chin/unitestuni.html
// https://fonts.google.com/specimen/Noto+Sans

const multiLanguageText = "00:00, : ,Ā Á Ă À ā á ă à Ǖ Ǘ Ǚ Ǜ ǖ ǘ ǚ ǜĈ ĉ Ĝ ĝ Ĥ ĥĴ ĵ Ŝ ŝ Ŭ ŭ Я не говорю по-русски. Я також не розмовляю Українською. Μῆνιν ἄειδε θεὰ Πηληϊάδεω Ἀχιλῆος. אני לא לומד עברית 𓂝𓃀𓅡𓄿𓌂 𓋴𓅓𓏏𓇏𓇌𓀀 我们刚才从 图书馆来了。 我們剛才從 圖書館來了。 𦮙, ABCČĆDĐEFGHIJKLMNOPQRSŠTUVWXYZŽ abcčćdđefghijklmnopqrsštuvwxyzž АБВГҐДЂЕЁЄЖЗЅИІЇЙЈКЛЉМНЊОПРСТЋУЎФХЦЧЏШЩЪЫЬЭЮЯ абвгґдђеёєжзѕиіїйјклљмнњопрстћуўфхцчџшщъыьэюя ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩ αβγδεζηθικλμνξοπρστυφχψωά ΆέΈέΉίϊΐΊόΌύΰϋΎΫὰάὲέὴήὶίὸόὺύὼώ ΏĂÂÊÔƠƯăâêôơư आईऊऋॠऌॡऐऔऎअं अँकखगघङचछजझञटठडढणतथदधनपफबभयरवळशषसह 1234567890 ०१२३४५६७८९‘?’“!”(%) [#]{@}&<-+÷×=> ®©$€£¥¢:;,.*₹"

## cors.js
// Create our server
var server;
server = http.createServer(function(req,res){
	// Set CORS headers
	res.setHeader('Access-Control-Allow-Origin', '*');
	res.setHeader('Access-Control-Request-Method', '*');
	res.setHeader('Access-Control-Allow-Methods', 'OPTIONS, GET');
	res.setHeader('Access-Control-Allow-Headers', '*');
	if ( req.method === 'OPTIONS' ) {
		res.writeHead(200);
	// From https://github.com/videojs/http-streaming/blob/d258fae646a3a4a6dc2ba26c729710dd8f39876a/src/videojs-http-streaming.js#L430-L464
	/**
	* Whether the browser has built-in HLS support.
	*/
	window._supportsNativeHls = (function() {
	if (!document \|\| !document.createElement) {
	return false;
	}

	const video = document.createElement('video');
	/**
	* We use this workaround to detect the Chromecast device generation.
	* Unfortunately the Cast Application Framework (CAF) does not have an API for that.
	*
	* cc-1: Chromecast 1st Gen.
	* cc-2: Chromecast 2nd Gen.
	* cc-3: Chromecast 3rd Gen.
	* cc-ultra: Chromecast Ultra
	* cc-builtin: Android TV with Chromecast built-in
	*/
Name	Indexing (Average)	Search (Average)	Insertion (Average)	Deletion (Worst)	Indexing (Worst)	Search (Worst)	Insertion (Worst)	Deletion (Worst)	Space
Basic Array	O(1)	O(n)	Undefined	Undefined	O(1)	O(n)	Undefined	Undefined	O(n)
Dynamic Array	O(1)	O(n)	O(n)	O(n)	O(1)	O(n)	O(n)	O(n)	O(n)
Singly-Linked List	O(n)	O(n)	O(1)	O(1)	O(n)	O(n)	O(1)	O(1)	O(n)
Doubly-Linked List	O(n)	O(n)	O(1)	O(1)	O(n)	O(n)	O(1)	O(1)	O(n)
Skip List	O(log(n))	O(log(n))	O(log(n))	O(log(n))	O(n)	O(n)	O(n)	O(n)	O(n log(n))
Hash Table	Undefined	O(1)	O(1)	O(1)	Undefined	O(n)	O(n)	O(n)	O(n)
Binary Search Tree	O(log(n))	O(log(n))	O(log(n))	O(log(n))	O(n)	O(n)	O(n)	O(n)	O(n)
Cartresian Tree	Undefined	O(log(n))	O(log(n))	O(log(n))	Undefined	O(n)	O(n)	O(n)	O(n)
B-Tree	O(log(n))	O(log(n))	O(log(n))	O(log(n))	O(log(n))	O(log(n))	O(log(n))	O(log(n))	O(n)
	// https://pages.ucsd.edu/~dkjordan/chin/unitestuni.html
	// https://fonts.google.com/specimen/Noto+Sans

	const multiLanguageText = "00:00, : ,Ā Á Ă À ā á ă à Ǖ Ǘ Ǚ Ǜ ǖ ǘ ǚ ǜĈ ĉ Ĝ ĝ Ĥ ĥĴ ĵ Ŝ ŝ Ŭ ŭ Я не говорю по-русски. Я також не розмовляю Українською. Μῆνιν ἄειδε θεὰ Πηληϊάδεω Ἀχιλῆος. אני לא לומד עברית 𓂝𓃀𓅡𓄿𓌂 𓋴𓅓𓏏𓇏𓇌𓀀 我们刚才从图书馆来了。我們剛才從圖書館來了。𦮙, ABCČĆDĐEFGHIJKLMNOPQRSŠTUVWXYZŽ abcčćdđefghijklmnopqrsštuvwxyzž АБВГҐДЂЕЁЄЖЗЅИІЇЙЈКЛЉМНЊОПРСТЋУЎФХЦЧЏШЩЪЫЬЭЮЯ абвгґдђеёєжзѕиіїйјклљмнњопрстћуўфхцчџшщъыьэюя ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩ αβγδεζηθικλμνξοπρστυφχψωά ΆέΈέΉίϊΐΊόΌύΰϋΎΫὰάὲέὴήὶίὸόὺύὼώ ΏĂÂÊÔƠƯăâêôơư आईऊऋॠऌॡऐऔऎअं अँकखगघङचछजझञटठडढणतथदधनपफबभयरवळशषसह 1234567890 ०१२३४५६७८९‘?’“!”(%) [#]{@}&<-+÷×=> ®©$€£¥¢:;,.*₹"
	// Create our server
	var server;
	server = http.createServer(function(req,res){
	// Set CORS headers
	res.setHeader('Access-Control-Allow-Origin', '*');
	res.setHeader('Access-Control-Request-Method', '*');
	res.setHeader('Access-Control-Allow-Methods', 'OPTIONS, GET');
	res.setHeader('Access-Control-Allow-Headers', '*');
	if ( req.method === 'OPTIONS' ) {
	res.writeHead(200);