preact-hyperscript
Hyperscript-like syntax for creating Preact elements.
Installation
> npm install preact-hyperscript
Example
→ Try this example on Codepen.io!
const createElement div h1 h2 h3 button ul li = const render = const h = createElement const App =
Guide
Component shorthand
Instead of calling createElement(Component, props)
you can wrap your component into a createComponent
call and invoke it using Component(props)
directly:
const createComponent h1 = const App =
Syntax
Each element in the DOM is exposed as a function when requiring preact-hyperscript
.
const div h1 p button =
These functions have the following syntax:
All arguments are optional with at least one argument needing to be present. This kind of function overloading allows you to iterate on your DOM structure really fast and reduce visual noise.
- selector can be a class (prefixed with
.
) or anid
(prefixed with a#
). These can be mixed as you might expect:.title#id.pad.red
- attributes is an object of dom attributes:
{ href: '#header' }
- children can be a string for a text node or an array of nodes
Built-in sugar
Classes
Conditionally joins class names together. It utilizes JedWatson's awesome classnames. Visit the usage docs for more information.
Inline styles
Automatically converts style objects to a string. For an additional weight of ~400 bytes this is well worth it:
const style = textDecoration: 'underline' fontSize: '56px' const node = // -> <h1 style='text-decoration:underline;font-size:56px;'>hello!</h1>
Benchmarks
Some basic benchmarks for creating 10^5
nodes:
> npm run bench
native*100000: 31.481ms
hyperscript*100000: 114.727ms
Tests
> npm test