What's next in Vue 3? 🖖 3️⃣

What's next in Vue3 ! ! @ianaya89 What's next in
Vue3? - @ianaya89 1

! Nacho Anaya ! @ianaya89 • JavaScript Engineer @BloqInc •
Ambassador @Auth0 • Tech Speaker @MozTechSpeakers • Organizador @Vuenos_Aires What's next in Vue3? - @ianaya89 2

! What's next in Vue3? - @ianaya89 3

! Vue 3 What's next in Vue3? - @ianaya89 5

! Totalmente Re-escrito What's next in Vue3? - @ianaya89 6

! Simple y Explícito What's next in Vue3? - @ianaya89
7

! Performance What's next in Vue3? - @ianaya89 8

! Monorepo What's next in Vue3? - @ianaya89 9

! Paquetes Individuales What's next in Vue3? - @ianaya89 10

!" Facilita Contribuir What's next in Vue3? - @ianaya89 11

➕ Extensible What's next in Vue3? - @ianaya89 12

! Tree-Shakeable Global API What's next in Vue3? - @ianaya89
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! 10 KB gzipped v2.x ~20 KB What's next in
Vue3? - @ianaya89 14

! TypeScript What's next in Vue3? - @ianaya89 15

☢ Reac&vity Engine What's next in Vue3? - @ianaya89 16

☢ Que es Reac)vidad? What's next in Vue3? - @ianaya89
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What's next in Vue3? - @ianaya89 18

☢ " Antes (2.x) Object.defineProperty() What's next in Vue3? -
@ianaya89 20

☢ " Antes (2.x) <template> <h1>{{ name }}</h1> </template> <script>
export default { data () { return { name: 'Nacho', foo: 'bar' } } } </script> What's next in Vue3? - @ianaya89 21

☢ " Antes (2.x) <script> export default { data ()
{ return { object: { name: 'Nacho' }, array: ['string'] } }, created () { this.$set(this.object, 'lastName', 'Anaya') this.$delete(this.object, 'lastName') this.$set(this.array, 1, 'new string') } } </script> What's next in Vue3? - @ianaya89 22

☢ " Antes (2.x) <script> export default { data ()
{ return { object: { name: 'Nacho' }, array: ['string'] } }, created () { this.$set(this.object, 'lastName', 'Anaya') this.$delete(this.object, 'lastName') this.$set(this.array, 1, 'new string') } } </script> What's next in Vue3? - @ianaya89 23

☢ " Ahora (3.x) new Proxy(target, handler) What's next in

! Proxy const handler = { get: (object, property) =>
object[property] || 'Default Value' } const p = new Proxy({}, handler) p.a = 1 p.b = undefined console.log(p.a, p.b) // 1, 'Default Value' What's next in Vue3? - @ianaya89 25

☢ " Ahora (3.x) // this.$set(this.object, 'lastName', 'Anaya') // this.$delete(this.object,
'lastName') // this.$set(this.array, 1, 'new string' this.object.lastName = 'Anaya' delete this.object.lastName this.array[1] = 'new string' What's next in Vue3? - @ianaya89 26

☢ " Ahora (3.x) ! "Reac'vity Caveats" What's next in

☢ " Ahora (3.x) Map - Set - WeakMap -
WeakSet What's next in Vue3? - @ianaya89 28

! IE11 What's next in Vue3? - @ianaya89 29

! Build custom para IE11 (sin Proxy) What's next in

❓ Class API class App extends Vue { static template
= ` <div @click="increment"> {{ count }} {{ plusOne }} </div> ` count = 0 created() { console.log(this.count) } get plusOne() { return this.count + 1 } increment() { this.count++ } } What's next in Vue3? - @ianaya89 32

⚰ Class API What's next in Vue3? - @ianaya89 33

! Hace dos dias... What's next in Vue3? - @ianaya89
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! Func&on API What's next in Vue3? - @ianaya89 37

! Composi(on API Composicion ﬂexible basada en funciones What's next
in Vue3? - @ianaya89 39

! Reac&vity API import { reactive } from vue What's
next in Vue3? - @ianaya89 40

! Reac&vity API import { reactive } from 'vue' const
state = state({ count: 0 }) console.log(state.count) What's next in Vue3? - @ianaya89 41

! Reac&vity API import { reactive, watch } from 'vue'
const state = reactive({ count: 0 }) watch(() => { document.body.innerHTML = `count is ${state.count}` }) What's next in Vue3? - @ianaya89 42

! Reac&vity API import { reactive, watch, computed } from
'vue' const state = reactive({ count: 0, double: computed(() => state.count * 2) }) watch(() => { document.body.innerHTML = `count is ${state.double}` }) What's next in Vue3? - @ianaya89 43

! Reac&vity API import { reactive } from 'vue' const
state = reactive({ count: 0 }) function increment() { state.count += 1 } document.body.addEventListener('click', increment) What's next in Vue3? - @ianaya89 44

! Hello Vue3! setup(props, context) What's next in Vue3? -
@ianaya89 45

<template> <button @click="increment"> Count is: {{ state.count }}, double is:
{{ state.double }} </button> </template> <script> import { reactive, computed } from 'vue' export default { setup() { const state = reactive({ count: 0, double: computed(() => state.count * 2) }) function increment() { state.count += 1 } return { state, increment } } } </script> What's next in Vue3? - @ianaya89 46

! Depreacados data - computed - methods - watch -
inject - mixins - extends - hooks What's next in Vue3? - @ianaya89 48

♻ Dynamic Lifecycle Injec/on What's next in Vue3? - @ianaya89
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♻ Dynamic Lifecycle Injec/on import { onMounted, onUpdated } from
'vue' export default { setup () { onMounted(() => console.log('Mounted')) onUpdated(() => console.log('Updated')) } } What's next in Vue3? - @ianaya89 50

♻ Dynamic LifeCycle Injec0on import { onMounted, onUpdated } from
'vue' export default { setup () { // attachar un hook para otro componente onMounted(() => console.log('Mounted...'), otherComponent) } } What's next in Vue3? - @ianaya89 51

♻ Dynamic LifeCycle Injec0on <child-component @hook:update="myUpdateHook" /> What's next in

! Mo$vación • Escalabilidad • Inferencia de Tipos • Organizacion
• Performance • ! Logic Composi+on " What's next in Vue3? - @ianaya89 54

! Reac&vity API + ♻ Dynamic Lifecycle Injec/on + λ
Composi)on API = ! Logic Composi+on What's next in Vue3? - @ianaya89 55

! Patrones Actuales • Mixins • HOC • Renderless Components

! Composi(on Func(ons import { reactive, onMounted, onUnmounted } from
'vue' export default function useMousePosition() { const position = reactive({ x: 0, y: 0 }) function updatePosition(e) { position.x = e.pageX position.y = e.pageY } onMounted(() => window.addEventListener('mousemove', update)) onUnmounted(() => window.removeEventListener('mousemove', update)) return position } What's next in Vue3? - @ianaya89 57

! Logic Composi+on <template> <div>{{ position.x, position.y }}</div> </template> <script>
import useMousePosition from './useMousePosition' import useOtherLogic from './useOtherLogic' export default { setup() { const position = useMousePosition() const other = useOtherLogic() return { position, other } } } </script> What's next in Vue3? - @ianaya89 58

! SE ROMPE TODO! What's next in Vue3? - @ianaya89
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! Se rompe todo? What's next in Vue3? - @ianaya89
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! Builds • Standard Build • Compa1bility Build (v2.x !
) What's next in Vue3? - @ianaya89 63

! Más! • Mul%ples root elements • v-model automágico (y
mul%ple) • Propagación de atributos • Herramienta de migración (~5min) • Sintaxis de slots What's next in Vue3? - @ianaya89 65

! Demo What's next in Vue3? - @ianaya89 66

! github.com/vuejs/rfcs What's next in Vue3? - @ianaya89 68

Nacho: "When Vue 3.0 will be ready?" Evan: "When it’s
ready" What's next in Vue3? - @ianaya89 70

! Q4 2019 (?) What's next in Vue3? - @ianaya89
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Gracias! ! @ianaya89 What's next in Vue3? - @ianaya89 72

! Preguntas? ! @ianaya89 What's next in Vue3? - @ianaya89
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What's next in Vue 3? 🖖 3️⃣

What's next in Vue 3? 🖖 3️⃣

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