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@landonf
landonf / 1-README.md
Last active June 2, 2016 06:49
Swift Result Type

A result type (based on swiftz) that can represent either an error or success:

enum Result<X, T> {
  case Err(() -> X)
  case Ok(() -> T)
}

Now we need a way to chain multiple results together without lots of nesting of if statements -- or exceptions. To do so, we can define a new bind (result, next) operator (implementation borrowed from swiftz) that operates on Result types (a.k.a flatMap or >>=):

  • If the result is Err, the result is immediately returned.
@staltz
staltz / introrx.md
Last active June 15, 2024 12:24
The introduction to Reactive Programming you've been missing
import Foundation
extension String
{
var length: Int {
get {
return countElements(self)
}
}
@cabeca
cabeca / simulator_populator
Created September 23, 2014 21:30
This script removes and recreates all simulators in Xcode 6.
#!/usr/bin/env ruby
device_types_output = `xcrun simctl list devicetypes`
device_types = device_types_output.scan /(.*) \((.*)\)/
runtimes_output = `xcrun simctl list runtimes`
runtimes = runtimes_output.scan /(.*) \(.*\) \((com.apple[^)]+)\)$/
devices_output = `xcrun simctl list devices`
devices = devices_output.scan /\s\s\s\s(.*) \(([^)]+)\) (.*)/
@glessard
glessard / shuffle.swift
Last active June 29, 2018 02:48
Shuffle a CollectionType
//
// shuffle.swift
//
// Created by Guillaume Lessard on 2014-08-28.
// Copyright (c) 2016 Guillaume Lessard. All rights reserved.
//
// https://github.com/glessard/shuffle
// https://gist.github.com/glessard/7140fe885af3eb874e11
//
@roop
roop / makemake.pl
Last active January 2, 2021 12:30
Script to create a Makefile to build your Swift project
#!/usr/bin/perl -w
use strict;
# Makefile generator for quick compilation of Swift projects
# By: Roopesh Chander
# Thanks: Andy Matuschak
# Works only for swift-only projects.
# Usage:
# > perl makemake.pl
# > make
@JaviLorbada
JaviLorbada / FRP iOS Learning resources.md
Last active May 29, 2024 07:33
The best FRP iOS resources.

Videos

@touilleMan
touilleMan / SimpleHTTPServerWithUpload.py
Last active June 8, 2024 06:41 — forked from UniIsland/SimpleHTTPServerWithUpload.py
Simple Python Http Server with Upload - Python3 version
#!/usr/bin/env python3
"""Simple HTTP Server With Upload.
This module builds on BaseHTTPServer by implementing the standard GET
and HEAD requests in a fairly straightforward manner.
see: https://gist.github.com/UniIsland/3346170
"""
@chriseidhof
chriseidhof / json.swift
Last active March 21, 2019 07:45
Reflection
import Cocoa
struct Person {
var name: String = "John"
var age: Int = 50
var dutch: Bool = false
var address: Address? = Address(street: "Market St.")
}
struct Address {
@nicklockwood
nicklockwood / gist:21495c2015fd2dda56cf
Last active August 13, 2020 13:57
Thoughts on Swift 2 Errors

Thoughts on Swift 2 Errors

When Swift was first announced, I was gratified to see that one of the (few) philosophies that it shared with Objective-C was that exceptions should not be used for control flow, only for highlighting fatal programming errors at development time.

So it came as a surprise to me when Swift 2 brought (What appeared to be) traditional exception handling to the language.

Similarly surprised were the functional Swift programmers, who had put their faith in the Haskell-style approach to error handling, where every function returns an enum (or monad, if you like) containing either a valid result or an error. This seemed like a natural fit for Swift, so why did Apple instead opt for a solution originally designed for clumsy imperative languages?

I'm going to cover three things in this post: