zetavg

function delay(ms = 1000) {
  return new Promise((resolve) => {
    setTimeout(resolve, ms);
  });
}

function getCourseIdFromPath() {
  try {
    const [, id] = window.location.hash.match(/course-wizard\/edit\/([^/]+)/);
    return id;

zetavg

function getGanDanKitMenuItems() {
  return Array.from(document.querySelectorAll('.promain'))
    .map(e => ({
      name: e.querySelector('h3').innerText.replace(/（/g, ' (').replace(/）/g, ')'),
      price: parseInt(e.querySelector('em').innerText.replace(/[^0-9]/mg, '')),
    }))
    // Filter out duplicated items
    .filter((v, i, arr) => (arr.findIndex(a => a.name === v.name) === i))
}

zetavg

function copyUberEatsMenuItems() {
  const items = getUberEatsMenuItems()
  copy(
    items
      .map(i => `${i.name}\t${i.price}`)
      .join('\n')
  )
}

function getUberEatsMenuItems() {

zetavg

Error: The application encountered the following error: uninitialized constant Bundler::Settings (NameError)
    /nix/store/li2vmpp6mxqzrs6s95szj1xga380hsv4-sample-rails-app-dev-bundler-env/lib/ruby/gems/2.5.0/gems/bundler-1.17.3/lib/bundler/settings.rb:6:in `<module:Bundler>'
    /nix/store/li2vmpp6mxqzrs6s95szj1xga380hsv4-sample-rails-app-dev-bundler-env/lib/ruby/gems/2.5.0/gems/bundler-1.17.3/lib/bundler/settings.rb:5:in `<top (required)>'
    /nix/store/928i2cf1wizgm7dapmnk0m8ijrsjdj43-ruby-2.5.7/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:72:in `require'
    /nix/store/928i2cf1wizgm7dapmnk0m8ijrsjdj43-ruby-2.5.7/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:72:in `require'
    /nix/store/li2vmpp6mxqzrs6s95szj1xga380hsv4-sample-rails-app-dev-bundler-env/lib/ruby/gems/2.5.0/gems/bundler-1.17.3/lib/bundler.rb:273:in `settings'
    /nix/store/li2vmpp6mxqzrs6s95szj1xga380hsv4-sample-rails-app-dev-bundler-env/lib/ruby/gems/2.5.0/gems/bundler-1.17.3/lib/bundler.rb:84:in `configured_bundle_path'
    

zetavg

const appMachine = Machine({
  id: 'app',
  initial: 'unauthenticated',
  states: {
    unauthenticated: {
      on: {
        LOGIN: 'authenticated',
      },
    },
    authenticated: {

zetavg

/**
 * telegraf-keyboard-bot
 *
 * Function to execute: handleRequest
 *
 * Required environment variables:
 *
 *  - TELEGRAM_BOT_AUTHENTICATION_TOKEN
 *
 * Run

zetavg

  const citizenQuartzMultiAlarmIIIMachine = Machine({
    id: 'citizen-quartz-multi-alarm-iii',
    initial: 'displays',
    states: {
      'displays': {
        initial: 'time',
        states: {
          'time': {
            on: {

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  // Available variables:
  // - Machine
  // - interpret
  // - assign
  // - send
  // - sendParent
  // - spawn
  // - raise
  // - actions

zetavg

################### APM Server Configuration #########################

############################# APM Server ######################################

apm-server:
  # Defines the host and port the server is listening on.  use "unix:/path/to.sock" to listen on a unix domain socket.
  host: "localhost:8200"

  # Maximum permitted size in bytes of a request's header accepted by the server to be processed.
  #max_header_size: 1048576

zetavg

用 Haskell 的 list comprehension 來解某數學愛好者社團的某題目。

執行結果

$ ghc -o solution solution.hs && ./solution
[[D,A,D,B,B,D,C,C,D,C]]