本文实例讲述了JavaScript模板引擎用法。分享给大家供大家参考。具体如下：
这里介绍的这个模板引擎写得短小精悍，非常值得一看
tmpl.js文件如下：
// Simple JavaScript Templating
// John Resig - http://ejohn.org/ - MIT Licensed
(function() {
var cache = {};
this.tmpl = function tmpl(str, data) {
// Figure out if we're getting a template, or if we need to
// load the template - and be sure to cache the result.
var fn =
!/\W/.test(str)
?
cache[str] = cache[str] || tmpl(document.getElementById(str).innerHTML)
:
// Generate a reusable function that will serve as a template
// generator (and which will be cached).
new Function(
"obj", "var p=[],print=function(){p.push.apply(p,arguments);};" +
// Introduce the data as local variables using with(){}
"with(obj){p.push('" +
// Convert the template into pure JavaScript
str
.replace(/[\r\t\n]/g, " ")
.split("<%").join("\t")
.replace(/((^|%>)[^\t]*)'/g, "$1\r")
.replace(/\t=(.*?)%>/g, "',$1,'")
.split("\t")
.join("');")
.split("%>")
.join("p.push('")
.split("\r")
.join("\\'") +
"');}return p.join('');"
); // Function ends
// Provide some basic currying to the user
return data ? fn(data) : fn;
};
})();
index.html文件如下：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>JavaScript tmpl Use Demo</title>
<script type="text/javascript" src="js/jquery.min.js"></script>
<script src="./tmpl.js" type="text/javascript"></script>
<!-- 下面是模板user_tmpl -->
<script type="text/html" id="user_tmpl">
<% for ( var i = 0; i < users.length; i++ ) { %>
<li><a href="<%=users[i].url%>"><%=users[i].name%></a></li>
<% } %>
</script>
<script type="text/javascript">
// 用来填充模板的数据
var users = [
{ url: "http://baidu.com", name: "jxq"},
{ url: "http://google.com", name: "william"}
];
$(function() {
// 调用模板引擎函数将数据填充到模板获得最终内容
$("#myUl").html(tmpl("user_tmpl", users));
});
</script>
</head>
<body>
<div>
<ul id="myUl">
</ul>
</div>
</body>
</html>
希望本文所述对大家的javascript程序设计有所帮助。
