relementjs (Reactive Element)

Isomorphic ui rendering & state management on the browser & server. The smallest reactive UI library on the browser & server. relementjs scales large & small with tree-shakable modules for rendering, reactivity, contexts, & hydration.

use case	reactive	size	imports
browser-only minimal	❌	446 B	tags
browser-only hydrate	❌	470 B	tags hydrate
browser-only hyop	-	471 B	tags hyop
single_hyop only	-	61 B	single_hyop
multi_hyop only	-	81 B	multi_hyop
browser-only hydrate + rmemo	✅	801 B	tags hydrate _ memo_ sig_
browser-only hyop + rmemo	✅	796 B	tags hyop _ memo_ sig_
server-only minimal	❌	454 B	tags
server-only render doc	❌	470 B	tags doc_html_ tagsNS
server-only render doc + rmemo	✅	828 B	tags doc_html_ tagsNS _ memo_ sig_
isomorphic browser	❌	666 B	relement__use browser__relement
isomorphic browser + rmemo	✅	1051 B	relement__use browser__relement
isomorphic server	❌	686 B	relement__use server__base__relement
isomorphic server + rmemo	✅	1012 B	relement__use server__base__relement
isomorphic html tag	❌	34 B	html_

relementjs started as a fork from VanJS. The bold use cases have rough equivalence to what VanJS provides. The browser export is smaller than VanJS. The server export is smaller than mini-van-plate/van-plate. relementjs exports rmemo for reactivity & ctx-core/be for contexts.

isomorphic rendering

1import { relement__use } from 'relementjs'
2import { browser__relement } from 'relementjs/browser'
3import { a_, div_ } from 'relementjs/html'
4relement__use(browser__relement)
5div_(
6  a_({ href: 'https://github.com/relementjs/relementjs' }, 'relementjs github page'))

browser rendering

1import { tags } from 'relementjs/browser'
2const { a, div } = tags
3div(
4  a({ href: 'https://github.com/relementjs/relementjs' }, 'relementjs github page'))

server rendering

1import { tags } from 'relementjs/server'
2const { a, div } = tags
3div(
4  a({ href: 'https://github.com/relementjs/relementjs' },
5    'relementjs github page'))

rectivity

relementjs uses rmemo for reactivity on the browser & server.