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	README.md	2023-06-08 13:45	3.4K	0fb859dc fixed mobile overflwo options [كارل مبارك]

# Babel Plugin JSX for Vue 3.0

[![CircleCI](https://circleci.com/gh/vuejs/jsx-next.svg?style=svg)](https://circleci.com/gh/vuejs/vue-next) [![npm package](https://img.shields.io/npm/v/@vue/babel-plugin-jsx.svg?style=flat-square)](https://www.npmjs.com/package/@vue/babel-plugin-jsx)

To add Vue JSX support.

English | [简体中文](/packages/babel-plugin-jsx/README-zh_CN.md)

## Installation

Install the plugin with:

```bash
npm install @vue/babel-plugin-jsx -D
```

Then add the plugin to .babelrc:

```js
{
  "plugins": ["@vue/babel-plugin-jsx"]
}
```

## Usage

### options

#### transformOn

Type: `boolean`

Default: `false`

transform `on: { click: xx }` to `onClick: xxx`

#### optimize

Type: `boolean`

Default: `false`

enable optimization or not. It's not recommended to enable it If you are not familiar with Vue 3.

#### isCustomElement

Type: `(tag: string) => boolean`

Default: `undefined`

configuring custom elements

## Syntax

### Content
functional component

```jsx
const App = () => <div>Vue 3.0</div>;
```

with render

```jsx
const App = {
  render() {
    return <div>Vue 3.0</div>;
  }
};
```

```jsx
import { withModifiers, defineComponent } from 'vue';

const App = defineComponent({
  setup() {
    const count = ref(0);

    const inc = () => {
      count.value++;
    };

    return () => (
      <div onClick={withModifiers(inc, ['self'])}>
        {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

v-show

```jsx
const App = {
  data() {
    return { visible: true };
  },
  render() {
    return <input v-show={this.visible} />;
  },
};
```

v-model

> Note: You should pass the second param as string for using `arg`.

```jsx
<input v-model={val} />
```

```jsx
<input v-model={[val, ['trim']]} />
```

```jsx
<A v-model={[val, 'foo', ['bar']]} />
```

Will compile to:

```js
h(A, {
  'foo': val,
  "fooModifiers": {
    "bar": true
  },
  "onUpdate:foo": $event => val = $event
})
```

custom directive

```jsx
const App = {
  directives: { custom: customDirective },
  setup() {
    return () => (
      <a
        v-custom={[val, 'arg', ['a', 'b']]}
      />
    );
  },
};
```

### Slot 

```jsx
const App = {
  setup() {
    const slots = {
      default: () => <div>A</div>,
      foo: () => <span>B</span>
    };
    return () => <A v-slots={slots} />;
  }
};
```

### In TypeScript

`tsconfig.json`:

```json
{
  "compilerOptions": {
    "jsx": "preserve"
  }
}
```

## Who is using

<table>
  <tbody>
    <tr>
      <td align="center">
        <a target="_blank" href="https://www.antdv.com/">
          <img
            width="32"
            src="https://qn.antdv.com/logo.png"
          />
          <br>
          <strong>Ant Design Vue</strong>
        </a>
      </td>
      <td align="center">
        <a target="_blank" href="https://youzan.github.io/vant/#/zh-CN/">
          <img
            width="32"
            style="vertical-align: -0.32em; margin-right: 8px;"
            src="https://img.yzcdn.cn/vant/logo.png"
          />
          <br>
          <strong>Vant</strong>
        </a>
      </td>
    </tr>
  </tbody>
</table>

## Compatibility

This repo is only compatible with:

- **Babel 7+**
- **Vue 3+**