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@samdphillips
samdphillips / Dockerfile
Created June 21, 2021 16:24
A very basic Dockerfile for Racket projects
FROM racket/racket:8.1-full AS build
WORKDIR /src/my-project
RUN raco pkg config --set catalogs \
https://download.racket-lang.org/releases/8.1/catalog/ \
https://racksnaps.defn.io/snapshots/2021/05/27/catalog/
RUN raco pkg install --auto --batch $ALL_THE_PACKAGES_I_NEED
COPY . /src/my-project
RUN raco test -x .
RUN raco exe --vv ++lib $DYNAMIC_REQUIRE_LIBS -o my-project main.rkt
@jjwatt
jjwatt / yplay.scm
Last active November 18, 2024 00:46
The Y Combinator explained in a runnable Scheme file
;;; The Y Combinator explained in scheme.
;;; with credits to:
;;; https://mvanier.livejournal.com/2897.html
;;; Status: WIP
(define fibonacci
(lambda (n)
(cond ((= n 0) 0)
((= n 1) 1)
(else (+ (fibonacci (- n 1)) (fibonacci (- n 2)))))))
@peeke
peeke / box.es6
Created May 22, 2017 07:32
The box pattern
// The box pattern:
// Array chaining methods for single values
const box = v => [ v ]
box(1)
.map(n => n * 2)
.map(n => n + 2)
.pop()
@peeke
peeke / ArrayLikeObservable.es6
Last active May 30, 2017 21:25
Array function based Steam & EventStream implementation. Also handles promises.
class Observable {
constructor(fn) {
this._fn = fn;
this._children = [];
const handler = {
get(target, prop) {
return prop in target || !(prop in Array.prototype)
param (
[string]$instances = 10
)
docker rm -f selenium-hub
docker run --restart=always -d -p 4444:4444 --name selenium-hub selenium/hub:3.0.0-dubnium
$i=0
while($i -ne $instances)
{
@peeke
peeke / DataStore.js
Last active October 21, 2016 08:17
A single data store for modules to communicate with.
/**
* A single data store for modules to communicate with. Keeping 'the truth' in a single place reduces bugs and allows
* for greater seperation of concerns.
*
* The module can be used as a singleton through DataStore.getSingleton('key'), or on instance basis through the new keyword.
*
* Uses the Observer module found here: https://gist.github.com/peeke/42a3f30c2a3856c65c224cc8a47b95f9
*
* @name DataStore
* @author Peeke Kuepers
@peeke
peeke / observer.js
Last active September 21, 2017 07:43
Used for inter-object communication. (Semi-)drop in replacement for Rik Schennink's Observer.
/**
* Used for inter-object communication.
* (Semi-)drop in replacement for Rik Schennink's Observer.
*
* Implementation differences:
* - ES6
* - The use of WeakMaps
* - inform() and conceal() don't return a boolean indicating success.
* - Subscription fn's are called with seperate arguments, instead of one data parameter. This is backwards compatible.
*
@ericelliott
ericelliott / model-mixin.js
Last active October 26, 2022 20:26
Model mixin
import Events from 'eventemitter3';
const modelMixin = Object.assign({
attrs: {},
set (name, value) {
this.attrs[name] = value;
this.emit('change', {
prop: name,
value: value
@craigbeck
craigbeck / introspection-query.graphql
Created April 6, 2016 20:20
Introspection query for GraphQL
query IntrospectionQuery {
__schema {
queryType { name }
mutationType { name }
subscriptionType { name }
types {
...FullType
}
directives {
@Avaq
Avaq / combinators.js
Last active December 5, 2024 01:58
Common combinators in JavaScript
const I = x => x
const K = x => y => x
const A = f => x => f (x)
const T = x => f => f (x)
const W = f => x => f (x) (x)
const C = f => y => x => f (x) (y)
const B = f => g => x => f (g (x))
const S = f => g => x => f (x) (g (x))
const S_ = f => g => x => f (g (x)) (x)
const S2 = f => g => h => x => f (g (x)) (h (x))