Jan Olaf Martin jkrems

## README.md

      
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                Prefers-Color-Scheme: Site Override
              
          
    Motivation: What's a "User Preference"?

Supposedly, the prefers-* media features represent the preferences of the user. And in some cases, that is true: User agents dutifully report what the user configured at the OS- or browser-level. And websites are encouraged to accommodate those wishes.
But the model breaks when the user has site-specific preferences. Suddenly the responsibility of keeping track and faithfully representing the user's preferences falls on the site and the user agent's view of the "preference" is plain wrong.
This leaves websites two options:

Ignore the user's real preference for their site and only honor the system-level configuration.
(Mostly) ignore the CSS media feature, outside of gathering initial default values via JS.


## es-module-history.md

      
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                History of ES modules
              
          
    Modules - History & Future

History


Early work by Ihab Awad (Google) and Kris Kowal (FastSoft)

https://twitter.com/kriskowal/status/943547614158450688
Hermetic eval presentation: https://docs.google.com/presentation/d/1KlPxgocvzpTq44KTF4xZ6TnzGRsy628hP5he7bXVB3I/edit#slide=id.i0


2009-09: 2nd draft of module strawman, still very close to "closures as modules", export x = 42

https://esdiscuss.org/topic/hermetic-evaluation-modules-strawman


https://docs.google.com/document/u/1/pub?id=1hNv1SHh_v_6nD1QBd6pySUJ2U5roAELzW5cqD2tt_WM


## index.md

      
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              November 3, 2023 14:34
            
              
                JavaScript: Classic Scripts vs. Modules vs. CommonJS
              
          
    JavaScript File Format Differences

There's the pervarsive notion that all JS is created equal and that there's only
minor and easily detectable differences between the various file formats used to
author JavaScript.
This is correct, from a certain point of view.

For many people writing JavaScript that gets passed into build tools,

  
## gh.sh
# Usage: gh <org-or-user>/<repo>
# Example: gh nodejs/node
gh () {
	local repo=$1
	local target="$HOME/code/src/github.com/$1"
	local url="git@github.com:$repo.git"
	if [[ ! -d "$target" ]]
	then
		git clone "$url" "$target"
	fi

## ok.js
module.exports = 'ok';

## _.md

      
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              February 27, 2020 15:51
            
              
                Observe compilation cache collision
              
          
    Repro


Start the server via node server.js.
Open http://localhost:3000.
If the compilation cache leads to bad meta data in dynamic import, the
message should only be logged once.
‎‎


## generators.md

      
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                jkrems
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              February 24, 2020 19:09
            
              
                Generators Are Like Arrays
              
          
    In all the discussions about ES6 one thing is bugging me.
I'm picking one random comment here from this io.js issue
but it's something that comes up over and over again:

There's sentiment from one group that Node should have full support for Promises. While at the same time another group wants generator syntax support (e.g. var f = yield fs.stat(...)).

People keep putting generators, callbacks, co, thunks, control flow libraries, and promises into one bucket.
If you read that list and you think "well, they are all kind of doing the same thing",
then this is to you.

  
## .gitignore
/node_modules
/input.js

## playground.json
{
    "scripts": [],
    "showConsole": true,
    "scriptType": "module"
}

## index.html
<!doctype html>
<html>
  <head>
    <meta charset="utf-8" />
  </head>
  <body>
    <h1>RegLang</h1>
    <pre id="result"></pre>
    <script src="/script.mjs" type="module"></script>
  </body>
	# Usage: gh <org-or-user>/<repo>
	# Example: gh nodejs/node
	gh () {
	local repo=$1
	local target="$HOME/code/src/github.com/$1"
	local url="git@github.com:$repo.git"
	if [[ ! -d "$target" ]]
	then
	git clone "$url" "$target"
	fi
	<!doctype html>
	<html>
	<head>
	<meta charset="utf-8" />
	</head>
	<body>
	<h1>RegLang</h1>
	<pre id="result"></pre>
	<script src="/script.mjs" type="module"></script>
	</body>