gsoltis

(function () {
  var makeCallback = function(eventType, observer) {
    if (eventType === 'value') {
      return function(snap) {
        observer.onNext(snap);
      };
    } else {
      return function(snap, prevName) {
        // Wrap into an object, since we can only pass one argument through.
        observer.onNext({snapshot: snap, prevName: prevName});

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

jimbojsb

Step 0:

Get Homebrew installed on your mac if you don't already have it

Step 1:

Install highlight. "brew install highlight". (This brings down Lua and Boost as well)

Step 2:

beabetterdevv

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "PublicReadGetObject",
            "Effect": "Allow",
            "Principal": "*",
            "Action": [
                "s3:GetObject"
            ],

scottcorgan

/**
 * If have any hooks that use Remix hooks, this helper will save you headaches
 */

import { createRemixStub } from "@remix-run/testing";
import { renderHook } from "@testing-library/react";

const renderRemixHook = <T,>(callback: () => T) => {
  const RemixStub = ({ children }: PropsWithChildren) => {
    const Remix = createRemixStub([

yang-wei

When receiving JSON data from other resources(server API etc), we need Json.Decode to convert the JSON values into Elm values. This gist let you quickly learn how to do that.

I like to follow working example code so this is how the boilerplate will look like:

import Graphics.Element exposing (Element, show)
import Task exposing (Task, andThen)
import Json.Decode exposing (Decoder, int, string, object3, (:=))

import Http

eligrey

/*
 * object.watch polyfill
 *
 * 2012-04-03
 *
 * By Eli Grey, http://eligrey.com
 * Public Domain.
 * NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
 */

kristopherjohnson

// F#'s "pipe-forward" |> operator
//
// Also "Optional-chaining" operators |>! and |>&
//
// And adapters for standard library map/filter/sorted

infix operator |>   { precedence 50 associativity left }
infix operator |>!  { precedence 50 associativity left }
infix operator |>&  { precedence 50 associativity left }
infix operator |>*  { precedence 50 associativity left }

jacobparis

export type PerformanceServerTimings = Record<
  string,
  Array<PerformanceServerTiming>
>

/**
 * Run this on the server to get a `time` function that can be used to time
 * server-side operations and add them to the `Server-Timing` header.
 */
export function getServerTiming() {