choonkeat

In a type specific module, we can name succinctly

module Channel

type Channel
    = Alpha
    | Beta

choonkeat

resource "aws_iam_role" "foobar-role" {
  name                = "foobar"
  path                = "/"
  assume_role_policy  = data.aws_iam_policy_document.foobar-assume-role-policy-document.json
  managed_policy_arns = [aws_iam_policy.foobar-policy.arn]
}

data "aws_iam_policy_document" "foobar-assume-role-policy-document" {
  statement {
    actions = ["sts:AssumeRole"]

choonkeat

<div class="max-w-screen bg-gray-100 text-center">
    <span class="text-red-400 sm:hidden">xs</span>
    <span class="text-yellow-400 hidden sm:inline md:hidden">sm</span>
    <span class="text-green-400 hidden md:inline lg:hidden">md</span>
    <span class="text-blue-400 hidden lg:inline xl:hidden">lg</span>
    <span class="text-purple-400 hidden xl:inline 2xl:hidden">xl</span>
    <span class="text-pink-400 hidden 2xl:inline 3xl:hidden">2xl</span>
</div>

choonkeat

#!/bin/sh

if $(which elm) $*
then
    echo '{"type":"compile-errors","errors":[]}' >&2
else
    touch $0
fi

choonkeat

var waitall = {
  defer: [],
  final: null
}

// will make sure to call `waitall.final` when all `waitall.defer` has cleared
function defer (fn) {
  waitall.defer.push(fn)
  return function (...args) {
    var result = fn(...args)

choonkeat

function camelize (str) {
  let parts = str.replace(/_/g, ' ').toLowerCase().split(/\W+/)
    .reduce(function (sum, s) {
      if (typeof sum === 'string') sum = [sum]
      if (sum[0]) return [...sum, s[0].toUpperCase() + s.slice(1)]
      return [s]
    })
  return (typeof parts === 'string' ? parts : parts.join(''))
}
console.log(`module Env exposing (..)

choonkeat

1. Create new spelling practice at https://spellingpractice.app/

2. Some example practices

• Radin Mas P2 听写 18
• [Radin Mas P2 听写 19](http://spellingpractice.app/?q=eyJ0aXRsZSI6IlJhZGluIE1hcyBQMiDlkKzlhpkgMTkiLCJsYW5nIjoiemgtY24iLCJnaXZlbldvcmRzIjoi5Y+j5ri0IChrx5J1IGvEmylcbuWWneiMtiAoaMSTIGNow6EpXG7k

choonkeat

What does it mean by Html Msg?

There are possibly 2 questions in this question. I'll answer them 1 by 1

Part 1: h-t-m-l message

After knowing the basic Elm syntax, we could be reading the following "return values" like this

userFromJWT : String -> Maybe User

choonkeat

• Elm is not a frontend framework.
• Elm is neither V in MVC, nor MV in MVC, nor even MVC itself.
• You don't assemble libraries and configure options to make Elm do what you want.

Elm is a language. You write programs with it.

But instead of providing a regular main function to run, Elm wants you to write at least 2 parts to run your program: init and update. This is my pseudo code for your init and update plugs into Elm runtime:

let [globalState, cmd] = init(optionFlags)

choonkeat

Scenario: Given a cookie string (which may be absent), parse and return a User record/struct

Often we'd write functions where arguments are "nullable", aka *string in Go, aka a Maybe in Elm

-- function `userFromCookie` with parameter type `Maybe String` return type `User`
userFromCookie1 : Maybe String -> User
userFromCookie1 maybeString =
    case maybeString of
        Nothing ->