babel-plugin-jsx/README.md
2020-05-27 00:12:34 +08:00

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# Babel Plugin JSX for Vue 3.0
To add Vue JSX support.
## Installation
Install the plugin with:
```
npm install @ant-design-vue/babel-plugin-jsx -D
npm install @ant-design-vue/babel-helper-vue-transform-on
```
Then add the plugin to .babelrc:
```
{
"plugins": ["@ant-design-vue/babel-plugin-jsx", { "transformOn": true }]
}
```
## Syntax
### Content
functional component
```jsx
const App = () => <div></div>
```
with render
```jsx
const App = {
render() {
return <div>Vue 3.0</div>
}
}
```
```jsx
const App = defineComponent(() => {
const count = ref(0);
const inc = () => {
count.value++;
};
return () => (
<div onClick={inc}>
{count.value}
</div>
)
})
```
fragment
```jsx
const App = () => (
<>
<span>I'm</span>
<span>Fragment</span>
</>
)
```
### Attributes/Props
```jsx
const App = () => <input type="email" />
```
with a dynamic binding:
```jsx
const placeholderText = 'email'
const App = () => (
<input
type="email"
placeholder={placeholderText}
/>
)
```
### Directives
> It is recommended to use camelCase version of it (`vModel`) in JSX, but you can use kebab-case too (`v-model`).
v-show
```jsx
const App = {
data() {
return { visible: true };
},
render() {
return <input vShow={this.visible} />;
},
};
```
v-model
* You should use underscore (`_`) instead of dot (`.`) for modifiers (`vModel_trim={this.test}`)
```jsx
export default {
data: () => ({
test: 'Hello World',
}),
render() {
return (
<>
<input type="text" vModel_trim={this.test} />
{this.test}
</>
)
},
}
```
## Compatibility
This repo is only compatible with:
- **Babel 7+**
- **Vue 3+**