Thomas Ballinger thomasballinger

## myrepl.mjs
import tty from 'tty'
import { emitKeypressEvents } from 'readline';

let drain;
process.stdout.on('drain', () => { drain() });
const waitForDrain = () => new Promise(r => {drain = r});
function waitForDrainify(func) {
  return async (...args) => {
    if (!func(...args)) {
      await waitForDrain();

## endless-sky emscripten progress
# Starting with Ubuntu 18.04.3 (LTS) x64
# I'm using a local VMwareFusion vm instead of Docker or something because I want to be able to test with a video device.

# New install
# (not shown) make account, enable ssh, add vm to /etc/hosts

ssh vm
apt-get update
sudo apt install git
git clone https://github.com/endless-sky/endless-sky.git

## invalidation.js
// Find deepest DOM ancestor that does not change on reexecute
const findParentOutputDiv = (el) => {
    let candidate = el;
    while (candidate) {
        candidate = candidate.parentElement
        if (candidate.className === 'output') {
            return candidate;
        }
    }
    throw Error("parent output div not found");

## cell_invalidation.ipynb

      
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                thomasballinger
                / cell_invalidation.ipynb
            
            
              Created Feb 1, 2020
            
              
                sketch of noticing that a cell has been removed or reexecuted. Useful for stopping timers, removing event listeners, etc.
              
          
      View cell_invalidation.ipynb
  
    
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## browserCanvasCtxFill.html
<html>
<body>

<canvas id="canvas1" width="200" height="200"></canvas>
<canvas id="canvas2" width="200" height="200"></canvas>
<canvas id="canvas3" width="200" height="200"></canvas>

<script>
var canvases = [canvas1, canvas2, canvas3]
var fillArgs = [undefined, 'evenodd', 'nonzero']

## Main.elm
module Main exposing (..)


type alias HasXAndY a =
    { a | x : Float, y : Int }


type alias HasX a =
    { a | x : Float }

## composition.py
from typing import Callable

class A: pass
class B: pass
class C: pass

def composition(aToB: Callable[[A], B],
                bToC: Callable[[B], C]) -> Callable[[A], C]:
    """Returns a callable that takes an A and returns a C"""

## gist:f72c2a4ca5dba8d1b38db33458962ef1
a simple remix file format

Files are always UTF-8

a syntax like

episode <episode query> of <podcast url>
play from <time> to <time> [at 2x speed] [at +12 dB]

example:

## justnumbers.svg

      
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                thomasballinger
                / justnumbers.svg
            
            
              Created May 7, 2016
            
          
      View justnumbers.svg
  
    
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## openedByPython.log
tomb@localhost:~$ strace python myPythonScript.py 2>&1 >/dev/null | grep open | grep -v ENOENT | grep -o '".*"' | grep -v '\.pyc'
"/etc/ld.so.cache"
"/lib/x86_64-linux-gnu/libpthread.so.0"
"/lib/x86_64-linux-gnu/libc.so.6"
"/lib/x86_64-linux-gnu/libdl.so.2"
"/lib/x86_64-linux-gnu/libutil.so.1"
"/lib/x86_64-linux-gnu/libz.so.1"
"/lib/x86_64-linux-gnu/libm.so.6"
"/usr/lib/python2.7/site.py"
"/usr/lib/python2.7/os.py"
	import tty from 'tty'
	import { emitKeypressEvents } from 'readline';

	let drain;
	process.stdout.on('drain', () => { drain() });
	const waitForDrain = () => new Promise(r => {drain = r});
	function waitForDrainify(func) {
	return async (...args) => {
	if (!func(...args)) {
	await waitForDrain();
	# Starting with Ubuntu 18.04.3 (LTS) x64
	# I'm using a local VMwareFusion vm instead of Docker or something because I want to be able to test with a video device.

	# New install
	# (not shown) make account, enable ssh, add vm to /etc/hosts

	ssh vm
	apt-get update
	sudo apt install git
	git clone https://github.com/endless-sky/endless-sky.git
	// Find deepest DOM ancestor that does not change on reexecute
	const findParentOutputDiv = (el) => {
	let candidate = el;
	while (candidate) {
	candidate = candidate.parentElement
	if (candidate.className === 'output') {
	return candidate;
	}
	}
	throw Error("parent output div not found");
	<html>
	<body>

	<canvas id="canvas1" width="200" height="200"></canvas>
	<canvas id="canvas2" width="200" height="200"></canvas>
	<canvas id="canvas3" width="200" height="200"></canvas>

	<script>
	var canvases = [canvas1, canvas2, canvas3]
	var fillArgs = [undefined, 'evenodd', 'nonzero']
	module Main exposing (..)


	type alias HasXAndY a =
	{ a \| x : Float, y : Int }


	type alias HasX a =
	{ a \| x : Float }
	from typing import Callable

	class A: pass
	class B: pass
	class C: pass

	def composition(aToB: Callable[[A], B],
	bToC: Callable[[B], C]) -> Callable[[A], C]:
	"""Returns a callable that takes an A and returns a C"""
	a simple remix file format

	Files are always UTF-8

	a syntax like

	episode <episode query> of <podcast url>
	play from <time> to <time> [at 2x speed] [at +12 dB]

	example:
	tomb@localhost:~$ strace python myPythonScript.py 2>&1 >/dev/null \| grep open \| grep -v ENOENT \| grep -o '".*"' \| grep -v '\.pyc'
	"/etc/ld.so.cache"
	"/lib/x86_64-linux-gnu/libpthread.so.0"
	"/lib/x86_64-linux-gnu/libc.so.6"
	"/lib/x86_64-linux-gnu/libdl.so.2"
	"/lib/x86_64-linux-gnu/libutil.so.1"
	"/lib/x86_64-linux-gnu/libz.so.1"
	"/lib/x86_64-linux-gnu/libm.so.6"
	"/usr/lib/python2.7/site.py"
	"/usr/lib/python2.7/os.py"