jbreckmckye

// Fun with distributions

// You probably know that TypeScript has union types

type StringsAndNumbers = string | number;

// You also probably know about 'discriminated unions' or 'tagged unions',
// representing different kinds of structs

type Eventing =

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE keyboard SYSTEM "file://localhost/System/Library/DTDs/KeyboardLayout.dtd">
<keyboard group="0" id="5001" name="British PC Layout" maxout="2">
	<layouts>
		<layout first="0" last="0" modifiers="48" mapSet="312" />
	</layouts>
	<modifierMap id="48" defaultIndex="0">
		<keyMapSelect mapIndex="0">
			<modifier keys="" />
		</keyMapSelect>

jbreckmckye

## Personas

## Subjects/Verbs :: Characters/Action

## Sentences should flow old information -> new

## Keep topics coherent

## Use topics to assign responsibility

jbreckmckye

GHCIDE & VSCode setup

1. Install Stack

curl -sSL https://get.haskellstack.org/ | sh
stack upgrade

Then ensure ~/.local/bin is on your $PATH.

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function group (rows, discriminant) {
  const asMap = rows.reduce(
    (acc, item) => {
      const key = item[discriminant]
      return {
        ...acc,
        [key]: acc[key] ? [...acc[key], item] : [item]
      }
    },
    {}

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function throttleGroup(fn, count, delay) {
	let queue = [];
	let nextDrain = null;
	
	function scheduleDrain() {
		nextDrain = window.setTimeout(drainQueue, delay);
	}
	
	function drainQueue() {
		const groupSize = Math.min(count, queue.length);

jbreckmckye

// Get a WebGL context

import {Perhaps, None, Some, Any} from 'highly-questionable';

const canvas = document.createElement('canvas');
const context = Perhaps
    .of(canvas.getContext('webgl2'))
    .or(canvas.getContext('webgl'))
    .orFrom(()=> canvas.getContext('experimental-webgl'));

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const THREE = require('three');

function AjaxTextureLoader() {
    /**
     * Three's texture loader doesn't support onProgress events, because it uses image tags under the hood.
     *
     * A simple workaround is to AJAX the file into the cache with a FileLoader, then extract that into a
     * texture with a separate TextureLoader call.
     */

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function firstTruthy<T>(promises: Array<Promise<any>>): Promise<T|null> {
    return new Promise((resolve, reject) => {
        // If any promise returns truthy value, immediately resolve with it
        promises.forEach(async promise => {
            const result = await promise;
            if (!!result) resolve(result);
        });

        // If any promise rejects, immediately throw the error
        Promise.race(promises).catch(reject);

jbreckmckye

/// <reference types="node" />

declare module 'watchr' {
    import {Stats, FSWatcher} from 'fs';
    import {EventEmitter} from 'events';

    export type ChangeType = 'update' | 'create' | 'delete';

    export type State = 'pending' | 'active' | 'deleted' | 'closed';