Vue 3 vs Ember Octane comparison

<script setup>
import { ref } from "vue";
const name = ref("John");
</script>

<template>
  <h1>Hello {{ name }}</h1>
</template>

<h1>Hello {{this.name}}</h1>

<script setup>
import { ref } from "vue";
const name = ref("John");
name.value = "Jane";
</script>

<template>
  <h1>Hello {{ name }}</h1>
</template>

<h1>Hello {{this.name}}</h1>

<script setup>
import { ref, computed } from "vue";
const count = ref(10);
const doubleCount = computed(() => count.value * 2);
</script>

<template>
  <div>{{ doubleCount }}</div>
</template>

<div>{{this.doubleCount}}</div>

<template>
  <h1>Hello world</h1>
</template>

<h1>Hello world</h1>

<template>
  <h1 class="title">I am red</h1>
  <button style="font-size: 10rem">I am a button</button>
</template>

<style scoped>
.title {
  color: red;
}
</style>

/* using: https://github.com/salsify/ember-css-modules */
.title {
  color: red;
}

<script setup>
const colors = ["red", "green", "blue"];
</script>

<template>
  <ul>
    <li v-for="color in colors" :key="color">
      {{ color }}
    </li>
  </ul>
</template>

<ul>
  {{#each (array "red" "green" "blue") as |color|}}
    <li>{{color}}</li>
  {{/each}}
</ul>

<script setup>
import { ref } from "vue";
const count = ref(0);

function incrementCount() {
  count.value++;
}
</script>

<template>
  <p>Counter: {{ count }}</p>
  <button @click="incrementCount">+1</button>
</template>

<p>Counter: {{this.count}}</p>
<button {{on "click" this.incrementCount}}>+1</button>

<script setup>
import { useTemplateRef, onMounted } from "vue";

const inputElement = useTemplateRef("inputElement");

onMounted(() => {
  inputElement.value.focus();
});
</script>

<template>
  <input ref="inputElement" />
</template>

<input {{this.autofocus}} />

<script setup>
import { ref, computed } from "vue";
const TRAFFIC_LIGHTS = ["red", "orange", "green"];
const lightIndex = ref(0);

const light = computed(() => TRAFFIC_LIGHTS[lightIndex.value]);

function nextLight() {
  lightIndex.value = (lightIndex.value + 1) % TRAFFIC_LIGHTS.length;
}
</script>

<template>
  <button @click="nextLight">Next light</button>
  <p>Light is: {{ light }}</p>
  <p>
    You must
    <span v-if="light === 'red'">STOP</span>
    <span v-else-if="light === 'orange'">SLOW DOWN</span>
    <span v-else-if="light === 'green'">GO</span>
  </p>
</template>

<button {{on "click" this.nextLight}}>Next light</button>
<p>Light is: {{this.light}}</p>
<p>
  You must
  {{#if (eq this.light "red")}}
    STOP
  {{else if (eq this.light "orange")}}
    SLOW DOWN
  {{else if (eq this.light "green")}}
    GO
  {{/if}}
</p>

<script setup>
import { ref, onMounted } from "vue";
const pageTitle = ref("");
onMounted(() => {
  pageTitle.value = document.title;
});
</script>

<template>
  <p>Page title: {{ pageTitle }}</p>
</template>

<p>Page title is: {{(this.pageTitle)}}</p>

<script setup>
import { ref, onUnmounted } from "vue";

const time = ref(new Date().toLocaleTimeString());

const timer = setInterval(() => {
  time.value = new Date().toLocaleTimeString();
}, 1000);

onUnmounted(() => {
  clearInterval(timer);
});
</script>

<template>
  <p>Current time: {{ time }}</p>
</template>

<p>Current time: {{this.time}}</p>

<script setup>
import UserProfile from "./UserProfile.vue";
</script>

<template>
  <UserProfile
    name="John"
    :age="20"
    :favourite-colors="['green', 'blue', 'red']"
    is-available
  />
</template>

<UserProfile
  @name="John"
  @age={{20}}
  @favouriteColors={{array "green" "blue" "red"}}
  @isAvailable={{true}}
/>

<script setup>
import { ref } from "vue";
import AnswerButton from "./AnswerButton.vue";

let isHappy = ref(true);

function onAnswerNo() {
  isHappy.value = false;
}

function onAnswerYes() {
  isHappy.value = true;
}
</script>

<template>
  <p>Are you happy?</p>
  <AnswerButton @yes="onAnswerYes" @no="onAnswerNo" />
  <p style="font-size: 50px">
    {{ isHappy ? "😀" : "😥" }}
  </p>
</template>

<p>Are you happy?</p>
<AnswerButton @onYes={{this.handleYes}} @onNo={{this.handleNo}} />
<p style="font-size: 50px;">{{if this.isHappy "😀" "😥"}}</p>

<script setup>
import FunnyButton from "./FunnyButton.vue";
</script>

<template>
  <FunnyButton> Click me! </FunnyButton>
</template>

<FunnyButton> Click me! </FunnyButton>

<script setup>
import FunnyButton from "./FunnyButton.vue";
</script>

<template>
  <FunnyButton />
  <FunnyButton> I got content! </FunnyButton>
</template>

<FunnyButton />
<FunnyButton>I got content!</FunnyButton>

<script setup>
import { ref, provide } from "vue";
import UserProfile from "./UserProfile.vue";

const user = ref({
  id: 1,
  username: "unicorn42",
  email: "unicorn42@example.com",
});

function updateUsername(username) {
  user.value.username = username;
}

provide("user", { user, updateUsername });
</script>

<template>
  <h1>Welcome back, {{ user.username }}</h1>
  <UserProfile />
</template>

<UserProfile />

<script setup>
import { ref } from "vue";
const text = ref("Hello World");
</script>

<template>
  <p>{{ text }}</p>
  <input v-model="text" />
</template>

<p>{{this.text}}</p>
<input value={{this.text}} {{on "input" this.handleInput}} />

<script setup>
import { ref } from "vue";

const isAvailable = ref(true);
</script>

<template>
  <input id="is-available" v-model="isAvailable" type="checkbox" />
  <label for="is-available">Is available</label>
</template>

<input
  id="is-available"
  type="checkbox"
  checked={{this.isAvailable}}
  {{on "change" this.handleChange}}
/>
<label for="is-available">Is available</label>

<script setup>
import { ref } from "vue";

const picked = ref("red");
</script>

<template>
  <div>Picked: {{ picked }}</div>

  <input id="blue-pill" v-model="picked" type="radio" value="blue" />
  <label for="blue-pill">Blue pill</label>

  <input id="red-pill" v-model="picked" type="radio" value="red" />
  <label for="red-pill">Red pill</label>
</template>

<div>Picked: {{this.picked}}</div>

<input
  id="blue-pill"
  type="radio"
  value="blue"
  checked={{eq this.picked "blue"}}
  {{on "change" this.handleChange}}
/>
<label htmlFor="blue-pill">Blue pill</label>

<input
  id="red-pill"
  type="radio"
  value="red"
  checked={{eq this.picked "red"}}
  {{on "change" this.handleChange}}
/>
<label htmlFor="red-pill">Red pill</label>

<script setup>
import { ref } from "vue";

const selectedColorId = ref(2);

const colors = [
  { id: 1, text: "red" },
  { id: 2, text: "blue" },
  { id: 3, text: "green" },
  { id: 4, text: "gray", isDisabled: true },
];
</script>

<template>
  <select v-model="selectedColorId">
    <option
      v-for="color in colors"
      :key="color.id"
      :value="color.id"
      :disabled="color.isDisabled"
    >
      {{ color.text }}
    </option>
  </select>
</template>

<select {{on "change" this.select}}>
  {{#each this.colors as |color|}}
    <option
      value={{color.id}}
      disabled={{color.isDisabled}}
      selected={{eq color.id this.selectedColorId}}
    >
      {{color.text}}
    </option>
  {{/each}}
</select>

<!DOCTYPE html>
<html>
  <body>
    <div id="app"></div>
    <script type="module" src="./main.js"></script>
  </body>
</html>

<script setup>
import useFetchUsers from "./useFetchUsers";

const { isLoading, error, data: users } = useFetchUsers();
</script>

<template>
  <p v-if="isLoading">Fetching users...</p>
  <p v-else-if="error">An error ocurred while fetching users</p>
  <ul v-else-if="users">
    <li v-for="user in users" :key="user.login.uuid">
      <img :src="user.picture.thumbnail" alt="user" />
      <p>
        {{ user.name.first }}
        {{ user.name.last }}
      </p>
    </li>
  </ul>
</template>

{{#let (this.fetchUsers) as |request|}}
  {{#if request.isLoading}}

    <p>Fetching users...</p>

  {{else if request.error}}

    <p>An error occurred while fetching users</p>

  {{else}}

    <ul>
      {{#each request.users as |user|}}
        <li>
          <img src={{user.picture.thumbnail}} alt="user" />
          <p>{{user.name.first}} {{user.name.last}}</p>
        </li>
      {{/each}}
    </ul>

  {{/if}}
{{/let}}