Skip to content

Instantly share code, notes, and snippets.

View natebird's full-sized avatar
🌐
Working online

Nate Bird natebird

🌐
Working online
View GitHub Profile
@nicklockwood
nicklockwood / OSKit.swift
Created January 28, 2023 11:32
A lightweight approach to writing cross-platform code in SwiftUI without a lot of conditional compilation blocks
import SwiftUI
enum OSDocumentError: Error {
case unknownFileFormat
}
#if canImport(UIKit)
import UIKit
@joscdk
joscdk / env.md
Created December 5, 2018 14:45
Using .env files in Vapor 3

.env files can be an easy way to setup Environment variables locally. You can start using a .env files in Vapor 3 by following this small guide.

First setup the vapor-ext package in your Package.swift file:

.package(url: "https://github.com/vapor-community/vapor-ext.git", from: "0.1.0"),

Next create a .env file in the root of your project:

@vzsg
vzsg / 1_Fetch.swift
Last active June 25, 2021 10:37
A solution for the N+1 problem when fetching children for parents (Fluent 3)
import Fluent
func fetchChildren<Parent, ParentID, Child: Model, Result>(
of parents: [Parent],
idKey: KeyPath<Parent, ParentID?>,
via reference: KeyPath<Child, ParentID>,
on conn: DatabaseConnectable,
combining: @escaping (Parent, [Child]) -> Result) -> Future<[Result]> where ParentID: Hashable & Encodable {
let parentIDs = parents.compactMap { $0[keyPath: idKey] }
let children = Child.query(on: conn)
public extension NSLayoutConstraint.Priority {
public static func -(lhs: NSLayoutConstraint.Priority, rhs: Float) -> NSLayoutConstraint.Priority {
return NSLayoutConstraint.Priority(lhs.rawValue - rhs)
}
public static func +(lhs: NSLayoutConstraint.Priority, rhs: Float) -> NSLayoutConstraint.Priority {
return NSLayoutConstraint.Priority(lhs.rawValue + rhs)
}
}
@jarsen
jarsen / JaSON.swift
Last active November 10, 2016 00:14
JSON Value Extraction in Swift. Blog post here http://jasonlarsen.me/2015/10/16/no-magic-json-pt3.html
import Foundation
//
// MARK: - JSONError Type
//
public enum JSONError: ErrorType, CustomStringConvertible {
case KeyNotFound(key: JSONKeyType)
case NullValue(key: JSONKeyType)
case TypeMismatch(expected: Any, actual: Any)
@PurpleBooth
PurpleBooth / README-Template.md
Last active May 9, 2024 19:52
A template to make good README.md

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

@austinzheng
austinzheng / main.swift
Last active March 7, 2016 20:41
Anonymous class experiment in Swift
import Foundation
protocol SomeDelegateProtocol : class {
func firstFunc() -> String
func secondFunc() -> Bool
func thirdFunc() -> Self
}
class MyClass {
weak var delegate : SomeDelegateProtocol?
@ordinaryzelig
ordinaryzelig / minitest_spec_expectations.md
Last active December 10, 2022 13:34
How to write MiniTest::Spec expectations

I'm a fan of MiniTest::Spec. It strikes a nice balance between the simplicity of TestUnit and the readable syntax of RSpec. When I first switched from RSpec to MiniTest::Spec, one thing I was worried I would miss was the ability to add matchers. (A note in terminology: "matchers" in MiniTest::Spec refer to something completely different than "matchers" in RSpec. I won't get into it, but from now on, let's use the proper term: "expectations").

Understanding MiniTest::Expectations

Let's take a look in the code (I'm specifically referring to the gem, not the standard library that's built into Ruby 1.9):

# minitest/spec.rb

module MiniTest::Expectations
@jcasimir
jcasimir / render_and_redirect.markdown
Created September 11, 2011 21:29
Render and Redirect in Rails 3

Render and Redirect

The normal controller/view flow is to display a view template corresponding to the current controller action, but sometimes we want to change that. We use render in a controller when we want to respond within the current request, and redirect_to when we want to spawn a new request.

Render

The render method is very overloaded in Rails. Most developers encounter it within the view template, using render :partial => 'form' or render @post.comments, but here we'll focus on usage within the controller.

:action

@sstephenson
sstephenson / gist:1120938
Created August 2, 2011 19:08
Quick guide to installing rbenv
# Clone rbenv into ~/.rbenv
git clone git@github.com:sstephenson/rbenv.git ~/.rbenv
# Add rbenv to your PATH
# NOTE: rbenv is *NOT* compatible with rvm, so you'll need to
# remove rvm from your profile if it's present. (This is because
# rvm overrides the `gem` command.)
echo 'export PATH="$HOME/.rbenv/bin:$HOME/.rbenv/shims:$PATH"' >> ~/.bash_profile
exec $SHELL