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@nicolashery
nicolashery / rxjs-react.js
Last active August 1, 2022 03:36
Fetching data asynchronously with RxJS and React
import React from 'react';
import _ from 'lodash';
import Rx from 'rx';
import superagent from 'superagent';
let api = {
host: 'http//localhost:3001',
getData(query, cb) {
superagent
@fxg42
fxg42 / optional.ex
Last active August 29, 2015 14:14
Maybe monad with Elixir
defmodule Optional do
def unit(nil), do: {:err, nil}
def unit(value), do: {:ok, value}
def lift(func) do
fn input -> unit(func.(input)) end
end
def bind({:ok, optional}, functor), do: functor.(optional)
def bind(err, _), do: err
@chriseidhof
chriseidhof / TypedNotifications.swift
Created January 26, 2015 14:41
Typed Notifications
import Foundation
class Box<T> {
let unbox: T
init(_ value: T) { self.unbox = value }
}
struct Notification<A> {
let name: String
}
@paf31
paf31 / 24days.md
Last active August 8, 2023 05:53
24 Days of PureScript

This blog post series has moved here.

You might also be interested in the 2016 version.

@staltz
staltz / introrx.md
Last active April 24, 2025 06:10
The introduction to Reactive Programming you've been missing
@jmont
jmont / maybe.m
Last active March 30, 2016 16:27
Swift Monads
// Swift Monads -- Maybe
// Juan C. Montemayor (@norsemelon)
// This operator can be used to chain Optional types like so:
// optionalVal >>= f1 >>= f2
// where f1 and f2 have type `Any -> Any?`
//
// If a value is ever nil, the chain short-circuits and will result in nil.
// This is a much neater way to do this than using the if syntax specified in
// the Swift iBook.
@timruffles
timruffles / dyanmic_or_di_elixir.md
Last active June 11, 2020 04:23
Approaches to dependency-injection/dynamic dispatch in elixir

In many production systems you'll want to have one module capable of talking to many potential implementations of a collaborator module (e.g a in memory cache, a redis-based cache etc). While testing it's useful to control which module the module under test is talking to.

Here are the approaches I can see. The two points that seem to divide the approaches are their tool-ability (dialyzer) and their ability to handle stateful implementations (which need a pid).

Passing modules

Modules are first class, so you can pass them in. Used in EEx, where passed module must implement a behaviour.

@julionc
julionc / 00.howto_install_phantomjs.md
Last active March 24, 2025 17:27
How to install PhantomJS on Debian/Ubuntu

How to install PhantomJS on Ubuntu

Version: 1.9.8

Platform: x86_64

First, install or update to the latest system software.

sudo apt-get update
sudo apt-get install build-essential chrpath libssl-dev libxft-dev
@grenade
grenade / 01-generate-ed25519-ssh-key.sh
Last active April 11, 2025 19:59
generate ed25519 ssh and gpg/pgp keys and set file permissions for ssh keys and config
#!/bin/bash
mkdir -p ~/.ssh
# generate new personal ed25519 ssh keys
ssh-keygen -o -a 100 -t ed25519 -f ~/.ssh/id_ed25519 -C "rob thijssen <[email protected]>"
ssh-keygen -o -a 100 -t ed25519 -f ~/.ssh/id_robtn -C "rob thijssen <[email protected]>"
# generate new host cert authority (host_ca) ed25519 ssh key
# used for signing host keys and creating host certs
@mattbaggott
mattbaggott / predicting_customer_behav_1.R
Last active September 15, 2020 22:16
Uses the BTYD package and Pareto/NBD model to predict customer behavior in R Slides are at: http://www.slideshare.net/mattbagg/baggott-predict-customerinrpart1#
#
# PREDICTING LONG TERM CUSTOMER VALUE WITH BTYD PACKAGE
# Pareto/NBD (negative binomial distribution) modeling of
# repeat-buying behavior in a noncontractual setting
#
# Matthew Baggott, [email protected]
#
# Accompanying slides at:
# http://www.slideshare.net/mattbagg/baggott-predict-customerinrpart1#
#