riggaroo

/* Copyright 2022 Google LLC.	
   SPDX-License-Identifier: Apache-2.0 */
@Composable
fun BouncyRopes() {
    val startCoOrdinate by remember {
        mutableStateOf(Offset(0f, 0f))
    }
    var endCoOrdinate by remember {
        mutableStateOf(Offset(100f, 0f))
    }

jrodbx

#!/usr/bin/env bash

# Find all added *.kt files from last commit and mv to *.java
for f in $(git diff --name-status --diff-filter='A' HEAD~ "*.kt" | cut -f 2);
  do mv -- "$f" "${f%.kt}.java";
done

# Commit the kt to java changes
git add .
git commit -m"kt to java"

andymatuschak

A composable pattern for pure state machines with effects

State machines are everywhere in interactive systems, but they're rarely defined clearly and explicitly. Given some big blob of code including implicit state machines, which transitions are possible and under what conditions? What effects take place on what transitions?

There are existing design patterns for state machines, but all the patterns I've seen complect side effects with the structure of the state machine itself. Instances of these patterns are difficult to test without mocking, and they end up with more dependencies. Worse, the classic patterns compose poorly: hierarchical state machines are typically not straightforward extensions. The functional programming world has solutions, but they don't transpose neatly enough to be broadly usable in mainstream languages.

Here I present a composable pattern for pure state machiness with effects,

eburke

import java.util.Random;

/*
  If Alice tosses a coin until she sees a head followed by a tail, and Bob tosses a coin until he
  sees two heads in a row, then on average, Alice will require four tosses while Bob will require
  six tosses (try this at home!), even though head-tail and head-head have an equal chance of
  appearing after two coin tosses.

  https://www.quantamagazine.org/20160313-mathematicians-discover-prime-conspiracy/
 */

rbobbins

PS: If you liked this talk or like this concept, let's chat about iOS development at Stitch Fix! #shamelessplug

Protocol-Oriented Programming in Swift

Speaker: David Abrahams. (Tech lead for Swift standard library)

• "Crusty" is an old-school programmer who doesn't trust IDE's, debuggers, programming fads. He's cynical, grumpy.

• OOP has been around since the 1970's. It's not actually new.

• Classes are Awesome

  • Encapsulation
  • Access control

coolaj86

Please petition Github to support HTTPS on github pages: https://github.com/contact

Here's what I wrote:

Obviously, a lot of people want HTTPS for github pages:

• isaacs/github#156

Until recently, that would be difficult to implement but, as it turns out, the implementation is pretty much complete:

• https://letsencrypt.org >* https://github.com/letsencrypt/lets-encrypt-preview

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.

---

erikh

#!/usr/bin/env sh

##
# This is script with usefull tips taken from:
#   https://github.com/mathiasbynens/dotfiles/blob/master/.osx
#
# install it:
#   curl -sL https://raw.github.com/gist/2108403/hack.sh | sh
#