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➿ An extensible JSX-based virtual DOM library for lightweight use in a variety of environments.

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superlucky84/lithent

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An extensible JSX-based virtual DOM library for lightweight use in a variety of environments.

lithent-text

npmnpm bundle sizenpmNPM

Lithent were developed to make it easy to insert Virtual DOM componentfragments into pages already drawn with SSR, and are intended to beused lightly in a variety of situations.

(lithent.mjs 14.25 kB │ gzip: 4.49 kB │ map: 59.74 kB)(lithent.umd.js 10.39 kB │ gzip: 4.03 kB │ map: 58.16 kB)

🚩 Table of Contents

Thanks for the introduction

Why use Lithent?

Lithent have the bare minimum of necessary functionality, with no unnecessary features.

In a real-world development environment, you may want to use Virtual DOM lightly, with only the bare minimum of core functionality.

"Lithent" makes it easy to add, remove, and update virtual DOM to specific parts of a pre-drawn SSR page.

"Lithent" has implemented the bare minimum functionality needed to create and update virtual DOM in general (we only need to know 'render', 'mounter', 'updater', 'renewer', 'mountCallback', and 'updateCallback').

We provide code in the form of 'helpers' that extend the basic functionality, but using the helpers is only optional and users can extend and develop custom helpers for their own projects.

Approach with the developer-friendly concept of closures between "component mounter" and "renderer"

JavaScript users are used to using closures and love to develop with them.

"Lithent" provides a familiar approach to my JavaScript development, as it leverages the properties of higher-order functions and closures to define and recycle the state of a component.

Basic Guide

Lithent Ssr Boilerplate

Lithent-Ssr-Boilerplate is a boilerplate designed for building server-side rendering (SSR) websites using theLithent UI library.

npx create-lithent-ssr@latest

How To Install

Use NPM

pnpm add lithent

Or Use CDN

It's easier to use lithent with JSX or HTM.

With JSX

With FTAGS

You don't need to use h functions or JSX, you can call functions to mark them up.When creating a component, usefMount instead ofmount.When creating a fragment, usefFragment instead ofFragment.

/* ESM */import{render,h}from'lithent';import{fTags,fFragment,fMount}from'lithent/ftags';const{ section, div, p, br, strong}=fTags;/* UMD<script src="https://cdn.jsdelivr.net/npm/lithent@1.18.5/dist/lithent.umd.js"></script><script src="https://cdn.jsdelivr.net/npm/lithent@1.18.5/helper/dist/lithentHelper.umd.js"></script><script src="https://cdn.jsdelivr.net/npm/lithent@1.18.5/ftags/dist/lithentFTags.umd.js"></script>const { render } = lithent;const { fTags, fMount, fFragment } = lithentFTags;const { section, div, p, br, strong } = fTags;*/constfTagComponent=fMount<{firstProp:number}>((_r,props,children)=>{return()=>fFragment('first inner',div({style:{border:'1px solid red'}},'second inner'),div('The props argument can be omitted.'),props.firstProp,      ...children);});render(fTagComponent({firstProp:3},// The props argument can be omitted.div({style:{border:'1px solid green'}},`Fchildren1`),'Fchildren2',br()),document.getElementById('root'));

With HTM

import{lTag}from'lithent/tag';constdestroy=render(lTag`<${Component} />`,document.getElementById('root'),document.getElementById('#insert-before-this-element'));

Examples

With ESM

import{h,render,mount,Fragment}from'lithent';import{lTag}from'lithent/tag';import{state}from'lithent/helper';constComponent=mount((renew,_props)=>{constcount=state(0,renew);constchange=()=>{count.value+=1;};// Updaterreturn()=>lTag`    <${Fragment}>      <li>count:${count.value}</li>      <button onClick=${change}>increase</button>    <//>  `;});// appendChild or insertBefore// The third argument is an optional value for insertBefore.constdestroy=render(lTag`<${Component} />`,document.getElementById('root'),document.getElementById('#insert-before-this-element'));

With UMD

<scriptsrc="https://cdn.jsdelivr.net/npm/lithent@1.18.5/dist/lithent.umd.js"></script><!--script src="https://cdn.jsdelivr.net/npm/lithent@1.18.5/helper/dist/lithentHelper.umd.js"></script--><scriptsrc="https://cdn.jsdelivr.net/npm/lithent@1.18.5/tag/dist/lithentTag.umd.js"></script><!--script src="https://cdn.jsdelivr.net/npm/lithent@1.18.5/ftags/dist/lithentFTags.umd.js"></script--><divid="root"></div><script>const{ h, Fragment, render, mount}=lithent;const{ lTag}=lithentTag;// const { state } = lithentHelper;constComponent=mount(renew=>{count=0;constchange=()=>{count+=1;renew();};// Updaterreturn()=>lTag`    <${Fragment}>      <li>count:${count}</li>      <button onClick=${change}>increase</button>    <//>  `;});// appendChild or insertBefore// The third argument is an optional value for insertBefore.constdestroy=render(lTag`<${Component} />`,document.getElementById('root'),document.getElementById('#insert-before-this-element'));</script>

Related Projects

  • htm - makingHyperscriptTaggedMarkup possible

Develop Guide

It's open source, so you can develop and contribute together.

pnpm install (this project was created using pnpm.)

npm install -g pnpm

project install

git clone https://github.com/superlucky84/lithent.gitcd lithentpnpm install

project build

pnpm build

Running the development environment

pnpm dev // or pnpm dev:core

Test

To fully test everything, including plugins like helper and ftags, a build is required.

pnpm installpnpm buildpnpmtest
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