Skip to content

vuejs/babel-plugin-jsx

dev
Switch branches/tags

Name already in use

A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
Code

Latest commit

* chore(deps): update all non-major dependencies

* chore: remove the lockfile and reinstall to update trnasitive deps

The outdated `@types/babel__traverse` package is causing type errors

* fix: fix htmlTags type error

* fix: pin @types/node to 18.8.0 to work around johnsoncodehk/volar#1985

* fix: pin @vue/test-utils temporarily to avoid snapshot differences

* test: update snapshot

As far as I see, all the snapshot differences are merely the newlines
after `import` statements

* test: add `attachTo: document.body` to make click event take effect

See vuejs/test-utils#1470 (comment)

* fix: fix mjs processing for webpack 4

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Haoqun Jiang <haoqunjiang@gmail.com>
367d21d

Git stats

Files

Permalink
Failed to load latest commit information.

Babel Plugin JSX for Vue 3.0

CircleCI npm package issues-helper

To add Vue JSX support.

English | 简体中文

Installation

Install the plugin with:

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

Then add the plugin to your babel config:

{
  "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

mergeProps

Type: boolean

Default: true

merge static and dynamic class / style attributes / onXXX handlers

enableObjectSlots

Type: boolean

Default: true

Whether to enable object slots (mentioned below the document) syntax". It might be useful in JSX, but it will add a lot of _isSlot condition expressions which increase your bundle size. And v-slots is still available even if enableObjectSlots is turned off.

pragma

Type: string

Default: createVNode

Replace the function used when compiling JSX expressions.

Syntax

Content

functional component

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

with render

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

const App = () => (
  <>
    <span>I'm</span>
    <span>Fragment</span>
  </>
);

Attributes / Props

const App = () => <input type="email" />;

with a dynamic binding:

const placeholderText = "email";
const App = () => <input type="email" placeholder={placeholderText} />;

Directives

v-show

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.

<input v-model={val} />
<input v-model:argument={val} />
<input v-model={[val, ["modifier"]]} />
<A v-model={[val, "argument", ["modifier"]]} />

Will compile to:

h(A, {
  argument: val,
  argumentModifiers: {
    modifier: true,
  },
  "onUpdate:argument": ($event) => (val = $event),
});

v-models (Not recommended since v1.1.0)

Note: You should pass a Two-dimensional Arrays to v-models.

<A v-models={[[foo], [bar, "bar"]]} />
<A
  v-models={[
    [foo, "foo"],
    [bar, "bar"],
  ]}
/>
<A
  v-models={[
    [foo, ["modifier"]],
    [bar, "bar", ["modifier"]],
  ]}
/>

Will compile to:

h(A, {
  modelValue: foo,
  modelModifiers: {
    modifier: true,
  },
  "onUpdate:modelValue": ($event) => (foo = $event),
  bar: bar,
  barModifiers: {
    modifier: true,
  },
  "onUpdate:bar": ($event) => (bar = $event),
});

custom directive

Recommended when using string arguments

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

Slot

Note: In jsx, v-slot should be replace with v-slots

const A = (props, { slots }) => (
  <>
    <h1>{ slots.default ? slots.default() : 'foo' }</h1>
    <h2>{ slots.bar?.() }</h2>
  </>
);

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

// or

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

// or you can use object slots when `enableObjectSlots` is not false.
const App = {
  setup() {
    return () => (
      <>
        <A>
          {{
            default: () => <div>A</div>,
            bar: () => <span>B</span>,
          }}
        </A>
        <B>{() => "foo"}</B>
      </>
    );
  },
};

In TypeScript

tsconfig.json:

{
  "compilerOptions": {
    "jsx": "preserve"
  }
}

Who is using


Ant Design Vue

Vant

Element Plus

Vue Json Pretty

Compatibility

This repo is only compatible with:

  • Babel 7+
  • Vue 3+