Skip to content

Instantly share code, notes, and snippets.

View NatashaTheRobot's full-sized avatar

Natasha Murashev NatashaTheRobot

1.6k followers · 88 following
View GitHub Profile
@airspeedswift
airspeedswift / switching on pairs of optionals
Last active August 29, 2015 14:04
func optional_pair1<T,U>(t: T?, u: U?)->String {
switch (t,u) {
// every case exhaustively covers the possibilities
case (.None,.None): return "neither"
case let (.Some(t), .Some(u)): return "both"
case let (.Some(t),.None): return "left"
case let (.None,.Some(u)): return "right"
// so no need for a default clause at all
// this way, you are totally explicit about
// which case is being handled how.
@perspectivezoom
perspectivezoom / game_of_life.rb
Created July 19, 2012 10:33
class Position
attr_reader :x, :y
@cache_of_positions = {}
def self.new_with_memo(x,y)
@cache_of_positions[[x,y]] || Position.new(x,y).tap do |instance|
@cache_of_positions[[x,y]] = instance
end
end
@rurabe
rurabe / gameoflife.html
Created July 21, 2012 04:18 — forked from NatashaTheRobot/gameoflife.html
<!DOCTYPE html>
<html lang='en'>
<head>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<meta charset="UTF-8">
<style>
.cell{
width:50px ;
height:50px;
padding: 0px;
@NatashaTheRobot
NatashaTheRobot / psql
Created July 21, 2012 17:05 — forked from rubyonrailstutor/psql
psql code
development:
adapter: postgresql
encoding: unicode
database: url_development
pool: 5
username: jd
password:
host: localhost
port: 5432
@garohussenjian
garohussenjian / SegueInteractor.swift
Last active April 18, 2016 01:24
Bind closure to Storyboard Segues (Master-Detail example)
// SegueInteractor.swift
// SegueIdentifier enumerates just the segue ID strings in the storyboard. VC's don't switch on this...
private enum SegueIdentifier: String {
case ShowDetail
}
// SegueInteractor binds closures to segues. VC's switch on this instead!
enum SegueInteractor {
case PrepareShowDetail((EventEntity) -> Void)
@erica
erica / 0 Conformances and Associated Types
Last active May 24, 2016 02:35
------------
Conformances
------------
protocol AbsoluteValuable
Conformances:
Comparable
IntegerLiteralConvertible
SignedNumberType
@marcelofabri
marcelofabri / sumRecursively.swift
Created January 2, 2015 22:33
sumRecursively based on http://natashatherobot.com/functional-swift-tail-recursion/
func sumRecursively(numbers: [Int], _ acc:Int = 0) -> Int {
if let head = numbers.first {
let tail = Array(dropFirst(numbers))
return sumRecursively(tail, head + acc)
} else {
return acc
}
}
let myNumbers = [1,2,3,4,5]
@blessingLopes
blessingLopes / selfie.swift
Created April 20, 2016 02:05
public protocol Selfie: CustomStringConvertible {}
extension Selfie {
var description: String {
let mirror = Mirror(reflecting: self)
return "\(mirror.subjectType)( \(mirror.children.map({ "\($0!): \($1) "}).joinWithSeparator(", ")))"
}
}
@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
//
@andymatuschak
andymatuschak / gist:2b311461caf740f5726f
Created December 28, 2014 18:17
A pragmatic and intentionally non-abstract solution to JSON decoding / initialization that doesn't require learning about five new operators.
struct User {
let id: Int
let name: String
let email: String?
}
extension User: JSONDecodable {
static func create(id: Int, name: String, email: String?) -> User {
return User(id: id, name: name, email: email)
}