Handlebars是一款很高效的模版引擎,提供语意化的模版语句,最大的兼容Mustache模版引擎, 提供最大的Mustache模版引擎兼容, 无需学习新语法即可使用;
下面这个是基本的模版表达式,
其中 {{ 和 }} 之间为handlerbars的变量;
<div class="entry"> <h1>{{title}}</h1> <div class="body"> {{body}} </div> </div>
拓展：Handlebars 的使用
其实就是模板化，这是以前就开始推崇的面向数据编程的一个方式。比如jquery template
web 开发中，js 解析JSON 是经常的事情。非常繁琐。handlebars 使用了模版，只要你定义一个模版，提供一个json对象，handlebars 就能吧json对象放到你定的模版中，非常方便好用！ 下面直接上代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Handlebars demo</title> <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script> <script type="text/javascript" src="js/handlebars-1.0.0.beta.6.js"></script> <script type="text/javascript" src="js/myjs.js"></script> <style type="text/css"></style> </head> <body> <h2>Simple handlebars demo</h2> <button id="btn_simple">Click me</button> <div id="my_div"> </div> <h2>Handlebars Helpers demo</h2> <button id="btn_helper">Click me</button> <div id="helper_div"> </div> <script id="some-template" type="text/x-handlebars-template"> <table> <thead> <th>Username</th> <th>Real Name</th> <th>Email</th> </thead> <tbody> {{#if users}} <tr> <td>{{username}}</td> <td>{{firstName}} {{lastName}}</td> <td>{{email}}</td> </tr> {{else}} <tr> <td colspan="3">NO users!</td> </tr> {{/if}} </tbody> </table> </script> <script id="helper-template" type="text/x-handlebars-template"> <div> <h1>By {{fullName author}}</h1> <div>{{body}}</div> <h1>Comments</h1> {{#each comments}} <h2>By {{fullName author}}</h2> <div>{{body}}</h2> {{/each}} </div> </script> </body> </html>
$(document).ready(function(){ Handlebars.registerHelper('fullName', function(person) { return person.firstName + " " + person.lastName; }); $("#btn_simple").click(function(){ // $(this).hide(); showTemplate(); }); $("#btn_helper").click(function(){ showHowUseHelper(); }); }); // var context = {title: "My New Post", body: "This is my first post!"}; var persion = {title :"My New Post",body:"This is my first post!"} function showTemplate(){ var source = $("#some-template").html(); var template = Handlebars.compile(source); var data = { users: [ {username: "alan", firstName: "Alan", lastName: "Johnson", email: "alan@test.com" }, {username: "allison", firstName: "Allison", lastName: "House", email: "allison@test.com" }, {username: "ryan", firstName: "Ryan", lastName: "Carson", email: "ryan@test.com" } ]}; $("#my_div").html(template(data));; } function showHowUseHelper(){ var context = { author: {firstName: "Alan", lastName: "Johnson"}, body: "I Love Handlebars", comments: [{ author: {firstName: "Yehuda", lastName: "Katz"}, body: "Me too!" }] }; var source = $("#helper-template").html(); var template = Handlebars.compile(source); $("#helper_div").html(template(context));; }
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