Juan-Carlos Foust kharmabum

Objective-C Coding Convention and Best Practices

Most of these guidelines are to match Apple's documentation and community-accepted best practices. Some are derived some personal preference. This document aims to set a standard way of doing things so everyone can do things the same way. If there is something you are not particularly fond of, it is encouraged to do it anyway to be consistent with everyone else.

This document is mainly targeted toward iOS development, but definitely applies to Mac as well.

Operators

NSString *foo = @"bar";

Build your own private, encrypted, open-source Dropbox-esque sync folder

Prerequisites:

One or more clients running a UNIX-like OS. Examples are given for Ubuntu 12.04 LTS, although all software components are available for other platforms as well (e.g. OS X). YMMV
A cheap Ubuntu 12.04 VPS with storage. I recommend Backupsy, they offer 250GB storage for $5/month. Ask Google for coupon codes.

Software components used:

Unison for file synchronization
EncFS for folder encryption

Abbreviations

Downtown = ~north of Market St
Richmond = ~north of Golden Gate Park
Mission = south of Market St to the West
SOMA - south of Market St to the East.

Food

Downtown - http://www.yelp.com/biz/bio-san-francisco

Streaming Systems:

Differential Dataflow - The code is ugly Rust, but the logic and linked papers are quite interesting.
Spinning Fast Iterative Dataflows - Flink's execution model. Also, coverage in the Morning Paper.
Discretized Streams - Spark Streaming's model of operation.
Google's Dataflow Model - This is now also available as Apache (Incubating) Beam.
Kafka Streams - Kafka offers "hipster stream processing," and a nice unification between tables and streams.

Streaming More G

Bridging Native & React for iOS & Android

	#import <Foundation/Foundation.h>

	@interface SafeSet : NSObject {
	NSMutableSet *set;
	dispatch_queue_t queue;
	}
	@end

	@implementation SafeSet

	- (CLLocationCoordinate2D)locationFromString:(NSString *)locationString{

	CLLocationCoordinate2D coordinate;

	// Extract individual components
	NSMutableArray *locationColumns = [NSMutableArray arrayWithArray:
	[locationString componentsSeparatedByCharactersInSet:
	[NSCharacterSet whitespaceCharacterSet]]];

	// Remove empty objects

	# The trick is to link the DeviceSupport folder from the beta to the stable version.
	# sudo needed if you run the Mac App Store version. Always download the dmg instead... you'll thank me later :)

	# Support iOS 15 devices (Xcode 13.0) with Xcode 12.5:
	sudo ln -s /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/15.0 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport

	# Then restart Xcode and reconnect your devices. You will need to do that for every beta of future iOS versions

	# (A similar approach works for older versions too, just change the version number after DeviceSupport)

	//
	// GIF2MP4.swift
	//
	// Created by PowHu Yang on 2020/4/24.
	// Copyright © 2020 PowHu Yang. All rights reserved.
	//

	/* How to use
	let data = try! Data(contentsOf: Bundle.main.url(forResource: "gif", withExtension: "gif")!)
	let tempUrl = URL(fileURLWithPath: NSTemporaryDirectory()).appendingPathComponent("temp.mp4")

	import Foundation

	/// An action that will get executed after a certain amount of
	/// time, if the object is still alive. If the object gets
	/// deinited before the provided time, the action will never
	/// get executed.
	class DebouncedAction {

	private let action: ()-> Void
	private var onCancel: (()-> Void)?