mmyoji

Create a playground App

TODO

• App features:
  • public blog posts pages (anyone can see)
  • login / logout
  • create / update / delete for user's own posts
  • signed-in user can view their posts (include draft posts)
• Unit tests

mmyoji

# frozen_string_literal: true

# Use Active Record Encryption for newer version of Rails
# https://edgeguides.rubyonrails.org/active_record_encryption.html
module ReversibleEncryptedAttribute
  extend ActiveSupport::Concern

  COLUMN_PREFIX = "encrypted"

  class_methods do

mmyoji

// Original Article: https://thesmartcoder.dev/awesome-react-hooks/
//
// I just wrote hooks that I'm interested in.

import { useRef, useEffect, useState } from "react";

function useTimeout(callback: Callback, delay: number) {
  const savedCallback = useRef<Callback>();

  useEffect(() => {

mmyoji

function fileToBase64(file: File): Promise<string | ArrayBuffer | null> {
  return new Promise((resolve, reject) => {
    const r = new FileReader()
    r.onload = () => resolve(r.result)
    r.onerror = (err) => reject(err)
    r.readAsDataURL(file)
  })
}

async function base64ToFile(str: string, fileName: string = "newfile.txt", type: string = "text/plain"): Promise<File> {

mmyoji

/**
 * @see https://react-redux.js.org/api/hooks
 *
 * This code is just a sample code for learning
 * and several expected features are lacked.
 */

import { ChangeEvent, KeyboardEvent } from "react";
import { createStore, Reducer } from "redux";
import { Provider, useDispatch, useSelector } from "react-redux";

mmyoji

Premises

• This is not religious or philosophy, but art and practice.
• Pursuit rationality and mental health.
• You can apply this to both company projects and your own private project because who u r today is different from who is yesterday.

Good commits and commit messages

• Simple and clear, the 1st line is a summary of the commit:

mmyoji

const SECONDS = 1000;
const MINUTES = SECONDS * 60;
const HOURS = MINUTES * 60;

interface Result {
  hours: number;
  minutes: number;
  seconds: number;
}

mmyoji

# frozen_string_literal: true

require "bundler/inline"

gemfile do
  source "https://rubygems.org"

  gem "virtus"
end

mmyoji

• Using GitHub, GitLab or similar de facto git hosting/collaborating services
• Many public chat messages, a few private ones
• Preferring remote/asynchronous communication to synchronous one
• Well-tested and -documented applications
• No routine meetings: discuss whenever necessary
• Higher priority for code review with respecting team mates' motivation
• Make code/projects public as mush as possible rather than trying hard to write "tech blog"
• CI/CD
• linter/formatter: not discuss code styles or preferences during code review

mmyoji

class Test
  extend Gem::Deprecate

  # DEPRECATED
  def foo
    puts "foo"
  end
  
  def bar
    puts "bar"