graue

// utility to shrink/recompress an image if it's big or non-JPEG
// input is a Blob (superclass of File, so File also ok), output a Blob

const MAX_DIM = 1536;
const QUALITY = 0.80;

export default function shrinkImage(blob) {
  return new Promise((resolve, reject) => {
    const url = URL.createObjectURL(blob);
    const img = document.createElement('img');

graue

// from this

type SavedPlaylistItem = {
  id: string,
  checksum: number,
};

// generate this

function getSavedPlaylistItem(payload: Object): ?SavedPlaylistItem {

graue

https://speakerdeck.com/fisherwebdev/fluxchat
https://www.youtube.com/watch?v=i__969noyAM

Stores: "fat models", contain all data for a particular domain

Also application logic for that domain

Setup: Register with the dispatcher (a pub/sub system, distributes
actions to all the stores registered to listen to it)

graue

// Fine with 100 tests — not so good with `gentest -n 1000 gtboom.js`
// (as of gentest 0.1.1)
//
// Adapted from Jamie Brandon's double-check example:
//   https://github.com/jamii/dcboom/blob/master/src/dcboom/core.cljs

var t = gentest.types;

forAll([t.arrayOf(t.arrayOf(t.string))],
       'simulate sparse/complex failure',

graue

// Option #1
prop('addition is commutative', [Number, Number], function(a, b) {
  return add(a, b) === add(b, a);
});

// Option #2
prop('addition is commutative', function(any) {
  var a = any(Number);
  var b = any(Number);
  return add(a, b) === add(b, a);

graue

(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
window.gentest = require('./index');

},{"./index":2}],2:[function(require,module,exports){
exports.run = require('./lib/run');
exports.sample = require('./lib/sample');
exports.types = require('./lib/types');

var errors = require('./lib/errors');
exports.FailureError = errors.FailureError;

graue

function BurtlePRNG(seed) {
  seed >>>= 0;
  var ctx = this.ctx = new Array(4);
  ctx[0] = 0xf1ea5eed;
  ctx[1] = ctx[2] = ctx[3] = seed;
  for (var i = 0; i < 20; i++) {
    this.next();
  }
  return this;
}

graue

// Adapted from Clojure code by Pablo Torres
// Original: https://gist.github.com/ptn/3c94f540b2e8d26bafce

var Immutable = require('immutable');
var V = Immutable.Vector;
var I = Immutable.fromNative;

// Helper: shuffle an immutable vector, returning a new one.
function shuffle(vec) {
  var out = [];

graue

# 3 10 5 16 8 4 2 1
import sys

def collatz(n):
    out = str(n)
    while n > 1:
        if n % 2 == 1:
            n = n*3 + 1
        else:
            n = n / 2

graue

// Prints Collatz sequence from a given integer.
// By Scott Feeney, released under CC0 Public Domain Dedication 1.0.

use std::io;

fn main() {
    let mut num = read_number();
    loop {
        println!("{:d}", num);
        match next_collatz(num) {