https://github.com/webreflection/jsx2tag

Enable JSX for Template Literal Tags based projects.
https://github.com/webreflection/jsx2tag

jsx template-literals

Last synced: about 11 hours ago
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Enable JSX for Template Literal Tags based projects.

• Host: GitHub
• URL: https://github.com/webreflection/jsx2tag
• Owner: WebReflection
• License: isc
• Created: 2021-06-09T13:35:01.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2022-09-21T08:38:36.000Z (about 2 years ago)
• Last Synced: 2024-11-14T09:41:39.285Z (2 days ago)
• Topics: jsx, template-literals
• Language: JavaScript
• Homepage: https://webreflection.medium.com/bringing-jsx-to-template-literals-1fdfd0901540
• Size: 29.3 KB
• Stars: 42
• Watchers: 3
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# JSX2TAG

[![Build Status](https://travis-ci.com/WebReflection/jsx2tag.svg?branch=main)](https://travis-ci.com/WebReflection/jsx2tag) [![Coverage Status](https://coveralls.io/repos/github/WebReflection/jsx2tag/badge.svg?branch=main)](https://coveralls.io/github/WebReflection/jsx2tag?branch=main)

**Social Media Photo by [Andre Taissin](https://unsplash.com/@andretaissin) on [Unsplash](https://unsplash.com/)**

Enable JSX for Template Literal Tags based projects.

  * [µhtml live demo](https://codepen.io/WebReflection/pen/KKWxXYY?editors=0010)

  * [µland live demo](https://codepen.io/WebReflection/pen/bGqxYpZ?editors=0010)

  * [µbe live demo](https://codepen.io/WebReflection/pen/BaWqNpd?editors=0010)

  * [lit-html live demo](https://codepen.io/WebReflection/pen/abJaVzm?editors=0010)

### Features

  * a `createPragma(tag, config?)` utility to have a `React.createElement` like function to use as *pragma*

  * a `bind` utility to mimic `.prop=${value}` in the template

  * automatic `onEventName` to `@eventName` conversion

  * automatic `?prop=${value}` conversion in the template, when the property is boolean

  * optionally boost performance via [@ungap/plugin-transform-static-jsx](https://github.com/ungap/plugin-transform-static-jsx#readme), able to create best template literals tags' arguments

### Example

See [test/index.jsx](./test/index.jsx) to see all features applied.

```js

/** @jsx h *//** @jsxFrag h */

// your template literal library of choice

const {render, html} = require('uhtml-ssr');

// this module utils

const {bind, createPragma} = require('jsx2tag');

// create your `h` / pragma function

const h = createPragma(html);

// if your env works already with `React.createElement`, use:

// const React = {createElement: createPragma(html)};

// any component (passed as template value)

const Bold = ({children}) => html`${children}`;

// any generic value

const test = 123;

// test it!

const myDocument = (

  


    Hello, 

    Hello

  

);


render(String, myDocument);

// 
Hello, Hello

```


## How To Transpile JSX

Specify `pragma` and `pragmaFrag` or use this syntax on top:

```js

/** @jsx h */

/** @jsxFrag h */

```

Otherwise, follow [@Robbb_J](https://twitter.com/Robbb_J) post [about minimal requirements](https://blog.r0b.io/post/using-jsx-without-react/) and you'll be good.

A huge thanks to him for writing such simple, step by step, guide.

## How to render keyed components

The `config` object accepts a `keyed(tagName, props)` callback that can return a keyed version of the component.

```js

/** @jsx h *//** @jsxFrag h */

import {createPragma} from '//unpkg.com/jsx2tag?module';

import {render, html} from '//unpkg.com/uhtml?module';

// used as weakMap key for global keyed references

const refs = {};

const h = createPragma(html, {

  // invoked when a key={value} is found in the node

  // to render regular elements (or µbe classes)

  keyed(tagName, {key}) {

    const ref = refs[tagName] || (refs[tagName] = {});

    return html.for(ref, key);

  }

});

render(document.body, 
);


```

Alternatively, each library might have its own way, but the gist of this feature, whenever available, is that the `key` property is all we're after:

```js

/** @jsx h *//** @jsxFrag h */

import {createPragma} from '//unpkg.com/jsx2tag?module';

import {render, html} from '//unpkg.com/uhtml?module';

const h = createPragma(html);

const App = ({name, key}) => html.for(App, key)`Hello ${name} 👋`;

render(document.body, );

```

Conditional *keyed* components are also possible.

Here another *uhtml* example:

```js

/** @jsx h *//** @jsxFrag h */

import {createPragma} from '//unpkg.com/jsx2tag?module';

import {render, html} from '//unpkg.com/uhtml?module';

const h = createPragma(html);

const App = ({name, key}) => {

  const tag = key ? html.for(App, key) : html;

  return tag`Hello ${name} 👋`;

};

render(document.body, );

```

In few words, there's literally *nothing* stopping template literal tags libraries to be *keyed* compatible.