功能强大的模板引擎大都需要对模板进行语法解析，会有性能问题。通过把一个大的模板引擎根据不同呈现需求分隔成多个互相独立模板控件，可以降低处理复杂度提供处理性能,可以根据需求灵活组合这些模板控件得到一个可以定制的模板功能库。
一个模板控件规定了它的模板语法和js api，这是一个repeater控件的JS实现:
JavaScript Repeater控件
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<script><br/> <br/> <br/>//View<br/>(function(ns){<br/> <br/> function init(){<br/> container.setAttribute("data-headertemplate", document .getElementById("crossRateHeader").text);<br/> container.setAttribute("data-itemtemplate", document.getElementById("crossRateItem .); ById( " crossRateFooter").text);<br/> }<br/> <br/> function render(dt){<br/> headerhtml = container.getAttribute("data-headertemplate"),<br/> rowhtml = Container 。屬性("data-itemtemplate"),<br/> footerhtml = container.getAttribute("data-footertemplate");<br/> rowhtml,footerhtml);<br/> var dataRow = [];<br/> for(var i = 0,n=dt.length; i<n; i++){<br/> dataRow = dt[i].split(",");<br/> repater.parse(); }<br/> container.innerHTML = repater.toHTML();<br/> }<br/> <br/> render: render, <br/> 函數(data: ){ <br/> ns.crossRate.init();<br/>}(window));<br/> <br/> <br/>//非同步取得資料渲染資料data<br/>var datas = ["USDEUR0,USDEUR,美元歐元,0.7731,0.7732,0.7723,0723,0732,0.723,0732,0.743,0732,0.723,0732,0.723,0732,0.723,0732,0.723,0. ,22913,0.0000,0,0,0.7731,0.0000,0,0,-0.0008,-0.10%,0.0000,1,3848,0,-1,1,0.0000,0.0000,2012-13: 4013: 53,3","USDHKD0,USDHKD,美元港幣,7.7625,7.7633,7.7621,7.7634,7.7617,0,14208,0.0000,0,0,7.7625,0.00. 2,2062,0,-1,0,0.0000,0.0000,2012-05-10 13:49:49,3","USDJPY0,USDJPY,美元日圓,79.71,79.73,79.62,79.77,79.77,79.62,79.77,79. 25489,0.00,0,0,79.71,0.00,0,0,-0.09,-0.11%,0.00,1,4307,0,-1,-1,0.00,0.00,2012-05-10 13:50: 13,3"," 美元瑞郎0, 美元瑞郎, 美元瑞郎,0.9285,0.9287,0.9276,0.9289,0.9266,0,29637,0.0000,0,0,0.9285,0,29637,0.0000,0,0,0.9285,0.000,00, -0.10% ,0.0000,1,4960,0,-1,1,0.0000,0.0000,2012-05-10 13:50:02,3","GBPUSD0,GBPUSD,英鎊美元,1.6134,1.6136,"GBPUSD0,GBPUSD,英鎊美元,1.6134,1.6136,1.4136,1. ,1.6121, 0,20808,0.0000,0,0,1.6134,0.0000,0,0,0.0004,0.02%,0.0000,2,5381,0,-1,0,0.0000,0. 50:04 ,3"];<br/> <br/>//填入資料到view<br/>crossRate.fill(datas);<br/> <br/> <br/>//Repater範本_this = this ;<br/> var n = 0;<br/> _this.cache = [];<br/> _this.dic = {};<br/> '; <br/> if (headerhtml) _this.header = headerhtml;<br/> if (rowhtml) _this.row = rowhtml;<br/> if (footerhtml) _this.footer = yhtml; this.dic[ tag] = val;<br/> };<br/> <br/> _this.parse = function(dic) {<br/> this.dic,<br/> re = /{$(w+)(?:[(d+)])?(?:|(w+))?}/g,<br/>html;<br/> html = row.replace(re, function(a, b, c, d) {<br/> var <br/> return b;<br/> }🎠 }🎠 dic[b].constructor == Array) {<br/> val = dic[b][c];<br/> val = dic[b];<br/> }<br/> }<br/> }<br/> ]) {//修飾符<br/> val = (Repater[d] || window[d])(val);<br/> <br/> });<br/> _this.cache[n++] = html; <br/> 返回html; <br/> } ;<br/> <br/> _this.toHTML = function(args) {<br/> var cache = _this.cache, this.cache = [];<br/> n = 0;<br/> result = _this.header + 快取。加入（「」） + _this.footer;<br/> for (i in args) {<br/> replace("{$"+i+"}", args[i] );<br/> } <br/> }<br/> 回傳結果;<br/> };<br/>}<br/></<br/></<br/></<br/> <br/></script>
