John Resig 开发的一个简易模板引擎,配合json非常的实用。
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// 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('');");
// Provide some basic currying to the user
return data ? fn( data ) : fn;
};
})(); |
很少的一点代码。但功能非常实用。
准备json和一个模板即可
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<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script><script type="text/javascript">// <![CDATA[
$(document).ready(function(){
var json =
{
"key":"1",
"datas":
[{"k":"v1","k2":"v2"}],
"test_if":true,
"test_for_datas":[1,2,3,4,5,6,7,8,9,10]
};
var tmp = 'key:<%=key%></br>'+
'datas:
<ul>
<li><%=datas[0].k%></li>
<li><%=datas[0].k2%></li>
</ul>
'+
'test_if:'+
'<%if(test_if){%>'+
'成立'+
'<%}else{%>'+
'失败'+
'<%}%>'+
'</br>'+
'循环:'+
'<%for(var i=0;i<test_for_datas.length;i++){%>'+
'<%=test_for_datas[i]%>'+
'<%}%>';
$("#conent").html(tmpl(tmp,json));
});
// ]]></script> |
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