/** * Created by Administrator on 15-1-19. */ function functionUtil() { } functionUtil = { //某个DOM节点是否有某个属性 hasAttr: function (el, name) { var attr = el.getAttributeNode && el.getAttributeNode(name); return attr ? attr.specified : false }, //根据class获取元素 getByClass: function (sClass, oParent) { oParent = oParent || document; if (!oParent.getElementsByClassName) { return oParent.getElementsByClassName(sClass); } var arr = []; var aEle = oParent.getElementsByTagName('*'); var reg = new RegExp('(^|\\s)' + sClass + '(\\s|$)'); //var reg = new RegExp('(^|[\\x20\\t\\r\\n\\f])' + sClass + '([\\x20\\t\\r\\n\\f]|$)'); for (var i = 0; i < aEle.length; i++) { if (reg.test(aEle[i].className)) { arr.push(aEle[i]); } } return arr; }, //动态添加样式表 addSheetFile: function (path) { var fileref = document.createElement("link") fileref.rel = "stylesheet"; fileref.type = "text/css"; fileref.href = path; fileref.media = "screen"; var headobj = document.getElementsByTagName('head')[0]; headobj.appendChild(fileref); }, //根据指定格式如 ${name} 绑定json数据 LoadJsonData: function (sParent, oJson) { var oParent = document.getElementById(sParent); if (oJson instanceof Array) { var str = oParent.innerHTML; for (var i = 0; i < oJson.length - 1; i++) { oParent.innerHTML += str; } for (var d in oJson) { oParent.children[d].innerHTML = oParent.children[d].innerHTML.replace(/\$\{(\w+)\}/g, function (str, $1) { return oJson[d][$1] ? oJson[d][$1] : ''; }); } } else { oParent.innerHTML = oParent.innerHTML.replace(/\$\{(\w+)\}/g, function (str, $1) { return oJson[$1] ? oJson[$1] : ''; }); } }, //根据指定格式如<%……%>绑定json数据 TemplateEngine: function (html, options) { html = html.replace(/(>)|(<)/g, function (str, $1, $2) { switch (str) { case $1: return '>'; case $2: return '<'; } }); var re = /<%([^%>]+)?%>/g, reExp = /(^( )?(if|for|else|switch|case|break|{|}))(.*)?/g, code = 'var r=[];\n', cursor = 0; var add = function (line, js) { js ? (code += line.match(reExp) ? line + '\n' : 'r.push(' + line + ');\n') : (code += line != '' ? 'r.push("' + line.replace(/"/g, '\\"') + '");\n' : ''); return add; } while (match = re.exec(html)) { add(html.slice(cursor, match.index))(match[1], true); cursor = match.index + match[0].length; } add(html.substr(cursor, html.length - cursor)); code += 'return r.join("");'; return new Function(code.replace(/[\r\t\n]/g, '')).apply(options); } }
1、第一种方式:${key}
functionUtil.LoadJsonData(element, data);
”html“代码：
<div> <div> 姓名：${name}<br/> 年龄：${age}<br/> 职业：${job}<br/><br/> </div> </div>
javascript代码:
var data = [ { name: '徐磊', age: 24, job: 'IT' }, { name: '李磊', age: 23, job: '翻译' } ]; functionUtil.LoadJsonData('data', data);
执行结果:
2、第二种方式<% 代码 %>
functionUtil.TemplateEngine(string,Object);
"html"代码：
<div> <%if(this.isShow){ for(var i in this.data){%> <p href="#">姓名：<%this.data[i].name%></p> <p href="#">年龄：<%this.data[i].age%></p> <p href="#">工作：<%this.data[i].job%></p> <br/> <%}}%> </div>
javascript代码：
var person = { data: [ { name: '徐磊', age: 24, job: 'IT' }, { name: '李磊', age: 23, job: '翻译' } ], isShow: true } document.getElementById("test3").innerHTML = functionUtil.TemplateEngine(document.getElementById("test3").innerHTML, person);
结果：
