template.js是一款JavaScript模板引擎，用来渲染页面的。
原理：提前将Html代码放进编写模板
<script id="tpl" type="text/html"></script>
中，当需要渲染页面时，在js里这样调用：
var tpl = document.getElementById('tpl').innerHTML; template(tpl, data});
template.js可以使用命令安装，也可以在git上面下载：https://github.com/yanhaijing/template.js
template.js开始标签默认为<%，结束标签默认为%>，显示数据为<%= i %>。
下面是使用template.js v0.7.1版本的实验结果：
1、遍历数组显示数据：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<div id="wp"></div>
<script id="tpl" type="text/html">
<ul>
<%for(var i in items){%>
<li>
name:<%=items[i].name%> val:<%=items[i].val%>
</li>
<%}%>
</ul>
</script>
<script src="../template.js"></script>
<script>
var data={
items:[{'name':'名字一','val':'数据一'},
{'name':'名字二','val':'数据二'},
{'name':'名字三','val':'数据三'},
{'name':'名字四','val':'数据四'}
]
}
var html = template(document.getElementById('tpl').innerHTML,data);
document.getElementById('wp').innerHTML = html;
</script>
</body>
</html>
2、模拟子模板
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>模拟子模版</title>
</head>
<body>
<div id="wp"></div>
<script id="tpl" type="text/html">
<h1>国内新闻</h1>
<%:=newsListTpl({list: list1, tpl: childTpl})%>
<h1>国际新闻</h1>
<%:=newsListTpl({list: list2, tpl: childTpl})%>
</script>
<script id="child-tpl" type="text/html">
<ul>
<% for(i in list){ %>
<li><%=list[i].title%> <%=list[i].desc%></li>
<% } %>
</ul>
</script>
<script src="../template.js"></script>
<script>
var childTpl = template(document.getElementById('child-tpl').innerHTML);
var data={
newsListTpl: childTpl,
list1: [
{title: '国内标题1', desc: '国内描述1'},
{title: '国内标题2', desc: '国内描述2'},
{title: '国内标题3', desc: '国内描述3'},
],
list2: [
{title: '国际标题1', desc: '国际描述1'},
{title: '国际标题2', desc: '国际描述2'},
{title: '国际标题3', desc: '国际描述3'},
],
}
console.log(data);
var html = template(document.getElementById('tpl').innerHTML,data);
document.getElementById('wp').innerHTML = html;
</script>
</body>
</html>
3、子模板里面的子模板
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>模拟子模版</title>
</head>
<body>
<div id="wp"></div>
<script id="tpl" type="text/html">
<h1>国内新闻</h1>
<%:=listTpl({list: list1, tpl: subChildTpl})%>
<h1>国际新闻</h1>
<%:=listTpl({list: list2, tpl: subChildTpl})%>
</script>
<script id="child-tpl" type="text/html">
<ul>
<% for(i in list){ %>
<%:=tpl(list[i])%>
<% } %>
</ul>
</script>
<script id="sub-child-tpl" type="text/html">
<li>
<%=title%> <%=desc%>
</li>
</script>
<script src="../template.js"></script>
<script>
var childTpl = template(document.getElementById('child-tpl').innerHTML);
var subChildTpl = template(document.getElementById('sub-child-tpl').innerHTML);
var data={
listTpl: childTpl,
newsChildTpl:subChildTpl,
list1: [
{title: '国内标题1', desc: '国内描述1'},
{title: '国内标题2', desc: '国内描述2'},
{title: '国内标题3', desc: '国内描述3'},
],
list2: [
{title: '国际标题1', desc: '国际描述1'},
{title: '国际标题2', desc: '国际描述2'},
{title: '国际标题3', desc: '国际描述3'},
],
}
console.log(data);
var html = template(document.getElementById('tpl').innerHTML,data);
document.getElementById('wp').innerHTML = html;
</script>
</body>
</html>
4.foreach循环获取数据
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<div id="wp"></div>
<script id="tpl" type="text/html">
<ul>
<%items.forEach(function(item){%>
<li><%=item.name%> <%=item.val%></li>
<%})%>
</ul>
</script>
<script src="../template.js"></script>
<script>
var data={
items:[{'name':'名字一','val':'数据一'},
{'name':'名字二','val':'数据二'},
{'name':'名字三','val':'数据三'},
{'name':'名字四','val':'数据四'}
]
}
var html = template(document.getElementById('tpl').innerHTML,data);
document.getElementById('wp').innerHTML = html;
</script>
</body>
</html>
5、registerFunction
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title></title> </head> <body> <div id="wp"></div> <script id="tpl" type="text/html"> <h5><%=selfFun()%></h5> <h5><%=selfFun2()%></h5> </script> <script src="../template.js"></script> <script> template.registerFunction('selfFun', function () { return '自创函数1' }); template.registerFunction('selfFun2', function () { return '自创函数2' }); var html = template(document.getElementById('tpl').innerHTML,{}); document.getElementById('wp').innerHTML = html; </script> </body> </html>
6、registerModifier
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title></title> </head> <body> <div id="wp"></div> <script id="tpl" type="text/html"> <h5><%:up='newbie is ace'%></h5> </script> <script src="../template.js"></script> <script> template.registerModifier('up', function (str) { return str.toUpperCase(); }); var html = template(document.getElementById('tpl').innerHTML,{}); document.getElementById('wp').innerHTML = html; </script> </body> </html>
