Snabbdom 性能强大的虚拟 DOM 库 项目简介
Snabbdom 是一个虚拟 DOM 库,专注提供简单、模块性的体验,以及强大的功能和性能。核心功能特性约 200 SLOC 的代码行 —— 你能轻松阅读整个项目的核心并理解其原理可通过模块进行扩展优异的性能,在 Virtual DOM Benchmark 测试中,Snabbdom 是最快的虚拟 DOM 库之一示例代码(Inline example)var snabbdom = require('snabbdom');
var patch = snabbdom.init([ // Init patch function with chosen modules
require('snabbdom/modules/class').default, // makes it easy to toggle classes
require('snabbdom/modules/props').default, // for setting properties on DOM elements
require('snabbdom/modules/style').default, // handles styling on elements with support for animations
require('snabbdom/modules/eventlisteners').default, // attaches event listeners
]);
var h = require('snabbdom/h').default; // helper function for creating vnodes
var container = document.getElementById('container');
var vnode = h('div#container.two.classes', {on: {click: someFn}}, [
h('span', {style: {fontWeight: 'bold'}}, 'This is bold'),
' and this is just normal text',
h('a', {props: {href: '/foo'}}, 'I\'ll take you places!')
]);
// Patch into empty DOM element – this modifies the DOM as a side effect
patch(container, vnode);
var newVnode = h('div#container.two.classes', {on: {click: anotherEventHandler}}, [
h('span', {style: {fontWeight: 'normal', fontStyle: 'italic'}}, 'This is now italic type'),
' and this is still just normal text',
h('a', {props: {href: '/bar'}}, 'I\'ll take you places!')
]);
// Second `patch` invocation
patch(vnode, newVnode); // Snabbdom efficiently updates the old view to the new state
var patch = snabbdom.init([ // Init patch function with chosen modules
require('snabbdom/modules/class').default, // makes it easy to toggle classes
require('snabbdom/modules/props').default, // for setting properties on DOM elements
require('snabbdom/modules/style').default, // handles styling on elements with support for animations
require('snabbdom/modules/eventlisteners').default, // attaches event listeners
]);
var h = require('snabbdom/h').default; // helper function for creating vnodes
var container = document.getElementById('container');
var vnode = h('div#container.two.classes', {on: {click: someFn}}, [
h('span', {style: {fontWeight: 'bold'}}, 'This is bold'),
' and this is just normal text',
h('a', {props: {href: '/foo'}}, 'I\'ll take you places!')
]);
// Patch into empty DOM element – this modifies the DOM as a side effect
patch(container, vnode);
var newVnode = h('div#container.two.classes', {on: {click: anotherEventHandler}}, [
h('span', {style: {fontWeight: 'normal', fontStyle: 'italic'}}, 'This is now italic type'),
' and this is still just normal text',
h('a', {props: {href: '/bar'}}, 'I\'ll take you places!')
]);
// Second `patch` invocation
patch(vnode, newVnode); // Snabbdom efficiently updates the old view to the new state