Vue 3.0 中 JSX 语法的实战使用指南

npm init vite-app vite-vue
cd vite-vue
npm install
npm run dev

export default function JsxTemp() {
 return <div>
 <h3>jsx</h3>
 </div>
}

import { ref } from 'vue'

export default function JsxTemp() {
 const state = ref(0)
 const onClick = () => {
 state.value++;
 console.log(state.value)
 }
 return <div>
 <h3>state: {state.value}</h3>
 <button onClick={onClick}>点击</button>
 </div>
}

import { defineComponent, ref } from 'vue'

export default defineComponent(() => {
 const state = ref(0)
 const onClick = () => {
 state.value++;
 console.log(state.value)
 }
 return () => (
 <div>
  <h3>state: {state.value}</h3>
  <button onClick={onClick}>点击</button>
 </div>
 )
})

App.vue
<JsxTemp site="imondo.cn" @onGet="onGet" />
export default {
 ...
 methods: {
 onGet(e) {
  console.log('emit:', e)
 }
 }
}
...
export default defineComponent({
 props: {
 site: String
 },
 setup({ site }) {
 const state = ref(0)
 const onClick = () => {
  state.value++;
  console.log(state.value)
  context.emit('onGet', 'Mondo');
 }
 return () => (
  <div>
  <h1>props: {site}</h1>
  <h3>state: {state.value}</h3>
  <button onClick={onClick}>点击</button>
  </div>
 )
 }
})