phucledien

extension Sequence {
    func reduce<A>(_ initial: A, combine: (inout A, Iterator.Element) -> ()) -> A {
        var result = initial
        for element in self {
            combine(&result, element)
        }
        return result
    }
}

phucledien

// Original article here: https://www.fivestars.blog/code/redacted-custom-effects.html

import SwiftUI

// MARK: Step 1: Create RedactionReason

public enum RedactionReason {

  case placeholder
  case confidential

phucledien

Build Better Apps with Value Types in Swift

Agenda

• Reference semantics
• Immutability
• Value semantics
• Value types in practice
• Mixing value types and reference types

Reference semantics

phucledien

Swift Concurrency Manifesto

Author: Chris Lattner

Chinese Translation by Jason Yu

Contents

• Introduction
• Overall Vision

phucledien

struct ContentView: View {
    var body: some View {

        VStack{
        
            Label("Hello Label", systemImage: "sun.min")
                .font(.system(.title, design: .rounded))
            
            Label("Title only label", systemImage: "sun.min")
                .font(.system(.title, design: .rounded))

phucledien

// Run any SwiftUI view as a Mac app.

import Cocoa
import SwiftUI

NSApplication.shared.run {
    VStack {
        Text("Hello, World")
        	.padding()
            .background(Capsule().fill(Color.blue))

phucledien

Keybase proof

I hereby claim:

• I am phucledien on github.
• I am phucld (https://keybase.io/phucld) on keybase.
• I have a public key ASBiatEcxVZQ9aCLuqHPeKcmWtPgFsgs6GG9kkSCD70I5Qo

To claim this, I am signing this object:

phucledien

/// Every view interacting with a `SayHelloViewModel` instance can conform to this.
protocol SayHelloViewModelBindable {
    var disposeBag: DisposeBag? { get }
    func bind(to viewModel: SayHelloViewModel)
}

/// TableViewCells
final class TextFieldCell: UITableViewCell, SayHelloViewModelBindable {
    @IBOutlet weak var nameTextField: UITextField!
    var disposeBag: DisposeBag?

phucledien

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

phucledien

The Rules of React

All libraries have subtle rules that you have to follow for them to work well. Often these are implied and undocumented rules that you have to learn as you go. This is an attempt to document the rules of React renders. Ideally a type system could enforce it.

What Functions Are "Pure"?

A number of methods in React are assumed to be "pure".

On classes that's the constructor, getDerivedStateFromProps, shouldComponentUpdate and render.