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staltz / example.js
Created March 18, 2019 20:59
Build your own RxJS
View example.js
function createObservable(subscribe) {
return {
subscribe,
pipe: function(operator) {
return operator(this);
},
};
}
const numberObservable = createObservable(function(observer) {
@staltz
staltz / readme.ts
Created April 25, 2018 17:31
callbag-typescript-proof-of-concept
View readme.ts
/**
* Callbag loves TypeScript
*
* Copy-paste this into http://www.typescriptlang.org/play/index.html
*/
// A Callbag dynamically receives input of type I
// and dynamically delivers output of type O
type Callbag<I, O> = {
(t: 0, d: Callbag<O, I>): void;
View composability-in-lifecycle-hooks.md
View xstream-to-pull-stream.ts
function xstreamToPullStream<T>(stream: Stream<T>): Readable<T> {
let hasBufferVal: boolean;
let bufferVal: T;
let bufferEndOrErr: any;
let callback: Callback<T>;
const listener: Listener<T> = {
next: t => {
console.log('pull stream Listener for xstream', t);
if (callback) {
console.log('pull stream direct', t);
@staltz
staltz / .bashrc
Created October 16, 2017 12:42
Put this in your ~/.bashrc (or equivalent) file. Then run `reactnativedev "192.168.1.101:8081"`
View .bashrc
# Tweak tap coordinates as you wish
function reactnativedev() {
adb shell input keyevent 82;
sleep 0.1;
adb shell input tap 150 1401;
sleep 0.1;
adb shell input tap 150 1401;
sleep 0.1;
adb shell input text "$1";
sleep 0.1;
View pull-stream-to-observable.ts
export function drained$<T>(pullStream: Function): Rx.Observable<T> {
return Rx.Observable.create(function subscribe(observer: Rx.Observer<T>) {
const drain = function drain(read: Function) {
read(null, function more(end: any | boolean, data: T) {
if (end === true) {
observer.complete();
return;
}
if (end) {
@staltz
staltz / comment.md
Created March 15, 2017 15:27
Nested Pick<T, K> in TypeScript 2.2
View comment.md

TypeScript supports Pick to allow you to get a "subset" object type of a given type, but there is no built-in Pick for deeper nested fields.

If you have a function that takes a large object as argument, but you don't use all of its fields, you can use Pick, Pick2, Pick3, etc to narrow down the input type to be only just what you need. This will make it easier to test your function, because when mocking the input object, you don't need to pass all fields of the "large" object.

@staltz
staltz / .bashrc
Created March 7, 2017 13:08
Show a macOS notification when a terminal task is done
View .bashrc
# Name it whatever you want. I like `y` because in my keyboard layout it's close to `;`
function y() {
previous=$?
if [ $previous -eq 0 ]; then
osascript -e "display notification \"Done\" with title \"Terminal Task\"" && say "it is done";
else
osascript -e "display notification \"Failed\" with title \"Terminal Task\"" && say "it went to the trees";
fi
}
@staltz
staltz / music.md
Last active March 1, 2021 23:26
coding music
View music.md
@staltz
staltz / adnetworks.txt
Created November 20, 2016 10:34
Ban these domains of ad networks
View adnetworks.txt
101com.com, 101order.com, 123found.com, 180hits.de, 180searchassistant.com, 1x1rank.com, 207.net, 247media.com, 24log.com, 24log.de, 24pm-affiliation.com, 2mdn.net, 2o7.net, 360yield.com, 4affiliate.net, 4d5.net, 50websads.com, 518ad.com, 51yes.com, 600z.com, 777partner.com, 77tracking.com, 7bpeople.com, 7search.com, 99count.com, a-ads.com, a-counter.kiev.ua, a.0day.kiev.ua, a.aproductmsg.com, a.collective-media.net, a.consumer.net, a.mktw.net, a.sakh.com, a.ucoz.net, a.ucoz.ru, a.xanga.com, a32.g.a.yimg.com, aaddzz.com, abacho.net, abc-ads.com, absoluteclickscom.com, abz.com, ac.rnm.ca, accounts.pkr.com.invalid, acsseo.com, actionsplash.com, actualdeals.com, acuityads.com, ad-balancer.at, ad-balancer.net, ad-center.com, ad-images.suntimes.com, ad-pay.de, ad-rotator.com, ad-server.gulasidorna.se, ad-serverparc.nl, ad-souk.com, ad-space.net, ad-tech.com, ad-up.com, ad.100.tbn.ru, ad.71i.de, ad.980x.com, ad.a8.net, ad.abcnews.com, ad.abctv.com, ad.about.com, ad.aboutit.de, ad.aboutwebservices.com, ad.abum.com,