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A simple library for composable DOM elements using tagged template strings.
If you're looking for a higher level front end framework, try yo-yo. Or even higher than that, try choo.
For a more in depth tutorial on getting started, please check out the wiki.
Create an element:
// list.js
var bel = require('bel')
module.exports = function (items) {
return bel`<ul>
${items.map(function (item) {
return bel`<li>${item}</li>`
})}
</ul>`
}
Then pass data to it and add to the DOM:
// app.js
var createList = require('./list.js')
var list = createList([
'grizzly',
'polar',
'brown'
])
document.body.appendChild(list)
// list.js
var bel = require('bel')
// The DOM is built by the data passed in
module.exports = function (items, onselected) {
function render () {
return bel`<ul>
${items.map(function (item) {
return bel`<li>${button(item.id, item.label)}</li>`
})}
</ul>`
}
function button (id, label) {
return bel`<button onclick=${function () {
// Then action gets sent up
onselected(id)
}}>${label}</button>`
}
var element = render()
return element
}
// app.js
var bel = require('bel')
var morphdom = require('morphdom')
var list = require('./list.js')
module.exports = function (bears) {
function onselected (id) {
// When a bear is selected, rerender with the newly selected item
// This will use DOM diffing to render, sending the data back down again
morphdom(element, render(id))
}
function render (selected) {
return bel`<div className="app">
<h1>Selected: ${selected}</h1>
${list(bears, onselected)}
</div>`
}
// On first render, we haven't selected anything
var element = render('none')
return element
}
Use the onload
and onunload
properties to call a function when the element
is inserted and removed from the DOM respectively.
var bel = require('bel')
var modal = bel`<div onload=${function (element) {
console.log('Hello DOM!')
}} onunload=${function (element) {
console.log('Goodbye DOM!')
}}>hello!</div>`
document.body.appendChild(modal)
document.body.removeChild(modal)
hyperx
is built into bel
but there may be times when you wish to use your
own version or implementation of hyperx
. Or if you prefer to create elements
using bel
without using tagged template literals:
var createElement = require('bel').createElement
var hyperx = require('hyperx')
var bel = hyperx(createElement)
var element = bel`<div class="heading">Hello!</div>`
// ...
var sameElement = createElement('div', { className: 'heading' }, ['Hello!'])
(c) 2016 Kyle Robinson Young. MIT License
FAQs
A simple extension to native elements
The npm package bel receives a total of 904 weekly downloads. As such, bel popularity was classified as not popular.
We found that bel demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 5 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
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