TSX-static

This is a minimal library for tsx pre-rendering or static site generation.

Usage

• mod.ts: Import React from mod.ts, Write tsx DOM as in React, and use React.stringify or React.toString to generate string from the DOM.

• types.dom.d.ts: This d.ts contains additional type declarations not provided by deno, so that frontend code can survive type check.

  • It is of no use if you are not writing frontend JavaScript inside tsx.

  • Notice: types.dom.d.ts contains only type declarations but no constant declarations. You need sth. like

    declare const document: Document

    or

    declare const HTMLElement: {
      prototype: HTMLElement
      new (): HTMLElement
    }

  to use them.

About React.stringify

Document Types

React.stringify allow passing a parameter DocType, which specify what kind of document it is producing.

• HTML
  • This is to generate valid HTML document. HTML specified self-closing tags will be forced self-closing, and other tags will be forced non-self-closing, no matter they actually have children or not.
  • Self closing tags will be like <br> instead of <br/>
• XML
  • This is the stringify mode without any assumption. Tags will be self-closing as long as they have no children, the document will be in valid XML, therefore <br/> instead of <br>.
  • This mode will not automatically set xmlns.
• XHTML
  • This mode tries to generate document that is both valid XML and valid HTML, so that it becomes valid XHTML document.
  • Like HTML, only self-closing tags can be self-closing, and self-closing tags are forced to be self-closing.
  • Like XML, <br/> instead of <br>.
  • xmlns will be set for well-known tags, like html, svg and math.
  • To generate valid standalone svg image without assigning xmlns manually, this, instead of XML, is the preferred mode.
  • XHTML mode may result in slightly bigger document than HTML mode. For HTML document, mode HTML is usually preferred.

Special treatments for style sheet and inline styles

• This behavior may change in future versions.

• React.stringify will try to detect tag name style and attribute name style, even in XML mode.

• If the content of the tag or attribute is an object, the object will be parsed as a style sheet or style object.

• It will then be stringified by the specific routine for style sheets and styles, instead its own toString method.

• However the attribute names of the style object will not be in JavaScript way, and the names are stringified as is without translation. That is to say, you should use background-color instead of backgroundColor.

• style example:

  {
    'background-color': 'white'
  }

• inline style example:

  <div
    style={{
      'background-color': 'white'
    }}
  ></div>

• style sheet example:

  <style>
    {{
      'html, body': {
        background: 'white'
      },
      'div#main': {
        display: 'block'
      }
    }}
  </style>

• A style sheet entry can be an array. In that case, that entry is expanded to multiple sheets with the same selector. This can be useful with at-rules.

  <style>
    {{
      'html, body': [
        {
          background: 'white'
        },
        {
          display: 'block'
        }
      ]
    }}
  </style>

Special treatment for script tag and inline event handlers

• React.stringify will automatically translate function attributes into IIFE, and minification will be applied after that.
• This is to say,

  <button onclick={() => alert('1')}>click me!</button>

  will be translated into

  <button onclick="(()=>alert('1'))()">click me!</button>

• Notice: onclick instead of onClick.
• <script> tags are given a compile-time only IIFE attributes, if it is set to true, all containing functions within this <script> tag will be translated into IIFE.
• There will be no bundler applied to <script> tags, and dependencies will not be resolved. If you want to import large pieces of script with complex dependencies, please use script[src] or script[type="module"] instead.

Example: How to create a tsx page, render it with tsx-static, and write it into dist/index.html

#! /usr/bin/env deno run -A --unstable
import { React } from '<path to tsx-static/mod.ts>'
export const index = (
  <html>
    <head>
      <title>Index</title>
    </head>
    <body></body>
  </html>
)

Deno.mkdirSync('dist/', { recursive: true })
Deno.writeTextFileSync('dist/index.html', index.stringify('html'))

You can write your own build script or use (for example, even) a Makefile to automate the later part.

Why this project, and what it plans to be

There are already some SSG and pre-rendering libraries, but most of them are not “fully” static. This library will stringify the whole document so that there will be no client-side jsx presence by default, and therefore there will be no server-side rendering.

Another good thing about this project, is that it won’t get in your way. Unlike frameworks like preact and next.js, this project only helps you deal with tsx and will do nothing else:

• It won’t assume how you resolve dependencies.
• It won’t assume how you bundle things.
• It won’t assume how dist/ (or public/) should looks like.
• And, it won’t assume there should be a webpack.

It gives the control, from webpack or create-whatever-app, back to you.