Skip to content

Instantly share code, notes, and snippets.

Git Cheat Sheet

Commands

Getting Started

git init

or

@joeblau
joeblau / OSX Secure Disk Wipe.md
Last active March 27, 2025 02:16
Securely erase an external disk using dd on OSX

Securely erase an external disk using dd on OSX

  1. Plug in your SD card, HDD, or other block device and then use the following command to see which /dev/diskN node it's located on:
diskutil list
  1. Unmount the disk where “N� is the number of the disk taken from the above command:
@mlynch
mlynch / cordova-plugin-guide.md
Last active February 3, 2023 00:21
Cordova Plugin Developer Guide

Cordova Plugin Development Guide (iOS and Android)

Version: 0.0.1 updated 7/1/2016

Cordova Plugins are the magic that enable our mobile web app content to access the full power of Native SDKs underneath, but through clean JavaScript APIs that work the same across all platforms we target.

Building Cordova plugins is scary for many Cordova and Ionic developers, but it doesn't have to be. This simple guide walks through the what, when, why, and how of Cordova plugin development for iOS and Android.

Introduction

@wonderbit
wonderbit / DockInfo.swift
Created November 28, 2016 19:04
Get the Dock position, size and hidden state in a Cocoa app
//
// DockInfo.swift
//
// Created by Wessley Roche on 28/11/2016.
//
import Foundation
enum WBDockPosition: Int {
case bottom = 0
@NSExceptional
NSExceptional / XcodeBuildSettingsReference.md
Last active October 27, 2025 17:47
The Xcode Build Settings Reference in a searchable document, as of Xcode 8.3.2

Build settings reference

Active Build Action (ACTION)

A string identifying the build system action being performed.

Additional SDKs (ADDITIONAL_SDKS)

The locations of any sparse SDKs that should be layered on top of the one specified by Base SDK (SDKROOT). If more than one SDK is listed, the first one has highest precedence. Every SDK specified in this setting should be a "sparse" SDK, for example, not an SDK for an entire macOS release.

Alternate Install Group (ALTERNATE_GROUP)

@elaughli
elaughli / obj2usdz.mm
Created December 12, 2018 22:33
function to convert a saved obj file to USDZ in objective-c
// path to documents directory to save our usdc file
NSString* usdcPath = [documentsDirectory stringByAppendingPathComponent:@"usdcExample.usdc"];
NSURL *usdcUrl = [NSURL fileURLWithPath: usdcPath];
// path to documents directory to save our final usdz file
NSString* usdzPath = [documentsDirectory stringByAppendingPathComponent:@"usdzExample.usdz"];
NSURL *usdzUrl = [NSURL fileURLWithPath:usdzPath];
// load the .obj file at filePath as an MDLAsset
NSURL *url = [NSURL fileURLWithPath:filePath];
@IanKeen
IanKeen / AnyCodable.swift
Last active March 4, 2021 18:45
AnyCodable
public struct AnyCodable: Codable {
public let value: Any?
public init(_ value: Any?) {
self.value = value
}
public init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
@timothycosta
timothycosta / GeometryFinder.swift
Created July 11, 2019 03:41
Find the geometry of a SwiftUI View
//
// GeometryFinder.swift
//
// Created by Timothy Costa on 2019/06/24.
// Copyright © 2019 timothycosta.com. All rights reserved.
//
import SwiftUI
struct RectPreferenceKey: PreferenceKey {
@kieranb662
kieranb662 / Rainbow.md
Last active July 11, 2025 11:59
[Rainbow ViewModifier] Rainbow animation view modifiers for SwiftUI #SwiftUI #ViewModifier

Rainbow Example

@jordansinger
jordansinger / AppleLogo.swift
Created June 16, 2021 18:37
Original Apple logo in SwiftUI
import SwiftUI
struct ContentView: View {
var body: some View {
VStack(spacing: 0) {
Color.green
Color.green
Color.green
Color.yellow
Color.orange