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Update compilerOptions.jsx to reflect latest preferences #2994

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27 changes: 14 additions & 13 deletions packages/tsconfig-reference/copy/en/options/jsx.md
Original file line number Diff line number Diff line change
Expand Up @@ -6,11 +6,11 @@ oneline: "Specify what JSX code is generated."
Controls how JSX constructs are emitted in JavaScript files.
This only affects output of JS files that started in `.tsx` files.

- `react`: Emit `.js` files with JSX changed to the equivalent `React.createElement` calls
- `react-jsx`: Emit `.js` files with the JSX changed to `_jsx` calls
- `react-jsxdev`: Emit `.js` files with the JSX changed to `_jsx` calls
- `react-jsx`: Emit `.js` files with the JSX changed to `_jsx` calls for production
- `react-jsxdev`: Emit `.js` files with the JSX changed to `_jsx` calls for development
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- `preserve`: Emit `.jsx` files with the JSX unchanged
- `react-native`: Emit `.js` files with the JSX unchanged
- `react`: Emit `.js` files with JSX changed to the equivalent `React.createElement` calls

### For example

Expand All @@ -20,7 +20,7 @@ This sample code:
export const HelloWorld = () => <h1>Hello world</h1>;
```

Default: `"react"`
default: `"react-jsx"`<sup>[[1]](https://reactjs.org/blog/2020/09/22/introducing-the-new-jsx-transform.html)</sup>

```tsx twoslash
declare module JSX {
Expand All @@ -31,10 +31,11 @@ declare module JSX {
}
// @showEmit
// @noErrors
// @jsx: react-jsx
export const HelloWorld = () => <h1>Hello world</h1>;
```

Preserve: `"preserve"`
React dev transform: `"react-jsxdev"`<sup>[[1]](https://reactjs.org/blog/2020/09/22/introducing-the-new-jsx-transform.html)</sup>

```tsx twoslash
declare module JSX {
Expand All @@ -45,11 +46,11 @@ declare module JSX {
}
// @showEmit
// @noErrors
// @jsx: preserve
// @jsx: react-jsxdev
export const HelloWorld = () => <h1>Hello world</h1>;
```

React Native: `"react-native"`
Preserve: `"preserve"`

```tsx twoslash
declare module JSX {
Expand All @@ -60,11 +61,11 @@ declare module JSX {
}
// @showEmit
// @noErrors
// @jsx: react-native
// @jsx: preserve
export const HelloWorld = () => <h1>Hello world</h1>;
```

React 17 transform: `"react-jsx"`<sup>[[1]](https://reactjs.org/blog/2020/09/22/introducing-the-new-jsx-transform.html)</sup>
React Native: `"react-native"`

```tsx twoslash
declare module JSX {
Expand All @@ -75,11 +76,12 @@ declare module JSX {
}
// @showEmit
// @noErrors
// @jsx: react-jsx
// @jsx: react-native
export const HelloWorld = () => <h1>Hello world</h1>;
```

React 17 dev transform: `"react-jsxdev"`<sup>[[1]](https://reactjs.org/blog/2020/09/22/introducing-the-new-jsx-transform.html)</sup>

Legacy runtime: `"react"`
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Make sure this is language we want to use.


```tsx twoslash
declare module JSX {
Expand All @@ -90,6 +92,5 @@ declare module JSX {
}
// @showEmit
// @noErrors
// @jsx: react-jsxdev
export const HelloWorld = () => <h1>Hello world</h1>;
```
```