DivineDominion

Title: Focus ReSwift reducers to one state change ID: 201801041611 Tags: #reswift #srp

ReSwift reducers should not have conditional side-effects, changing different states out of convenience. That makes it hard to notice which action changed what. The condition is most of the problem, I think.

An ideal approach would be to have 1 reducer/action pair for each substate change.

When reducers overlap (they touch the same state), this can become a problem. (IncreaseCounter and DecreaseCounter are a bad example.) Conditional changes to another substate should be extracted as another action which is dispatched by a Middleware under similar circumstances.

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struct Foo: ExpressibleByBooleanLiteral {
    var value: Bool
    init(booleanLiteral value: BooleanLiteralType) {
        self.value = value
    }
}

func ==(lhs: Foo, rhs: Foo) -> Bool {
    return lhs.value == rhs.value
}

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// - MARK: Example Code

/// A model 
struct User {
    let firstName: String
    let lastName: String
    let age: Int?
}

/// Initializer using a Partial<T> -- You could generate this with Sourcery

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import Cocoa
import RxSwift
import RxCocoa

@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {

    @IBOutlet weak var window: NSWindow!

    let disposeBag = DisposeBag()

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Affect the order/priority of subscription callbacks in ReSwift

(Reply to "Any way to control the priority of subscription callbacks?" ReSwift/ReSwift#404)

ReSwift does not guarantee any subscription callback order. Since ReSwift uses an unordered Set as its subscription store, there's no reliable way to know when a subscription is invoked.

This implementation detail is hidden by design. If you find yourself wanting to affect the order of subscription callbacks, there's a concept of a sequence waiting to be extracted somehow.

These are the ways out:

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Keybase proof

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• I am divinedominion on github.
• I am ctietze (https://keybase.io/ctietze) on keybase.
• I have a public key ASAeEXhO_3ukmYArB4BCULSfFFT-rpg6j_aXiWWv_zmBEwo

To claim this, I am signing this object:

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#!/usr/bin/env ruby

# Avoid all the script configuration and use this convenience script instead!
#
# 1) Put it into the same folder,
# 2) run the script: `ruby _execute.rb PATH/TO/THE_NOTE.txt`


##################
# Configure here #

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#!/usr/bin/env ruby

require "rspec"

class God
  def kill!(cell)
    cell.sacrifice_to self
  end

  def surrender(process)

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#!/usr/bin/env ruby

# Usage: random_file.rb [options]
#     -d, --dir [VALUE]                Path to the note archive. Default: the current working directory.
#     -c, --count [VALUE]              Amount of unique random notes to fetch
#     -h, --help                       Prints this help

require "optparse"

CURRENT_PATH = Dir.pwd

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#!/usr/bin/env ruby
require 'set'

# Change the path here:
ARCHIVE = '~/Archive/'

EXTENSIONS = %w{.md .txt .markdown .mdown .text}

#################################################################