Paste_Image.png
由于ajax的异步问题，全局变量bookData输出的时候不一定已经执行完成ajax，所以存在获取不到请求数据的情况。这里把将变量作为回调输出，可以保证获取的是返回的数据。
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<link rel="stylesheet" href="./css/index.css">
</head>
<body>
<div id="todoList"></div>
<ul id="bookTypeList" class="bookType"></ul>
<div class="clear"></div>
<table id="bookList" class="bookList">
<thead>
<tr>
<th>书名</th>
<th>作者</th>
<th>编号</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
<script type="text/template" id="type-list-template">
{{#.}}
<li>{{type}}</li>
{{/.}}
</script>
<script type="text/template" id="book-list-template">
{{#.}}
<tr>
<td>{{name}}</td>
<td>{{author}}</td>
<td>{{bookNo}}</td>
</tr>
{{/.}}
</script>
<script type="text/javascript" src="./js/jquery-2.1.4.min.js"></script>
<script type="text/javascript" src="./js/mustache.min.js"></script>
<script src="./js/main.js"></script>
<script type="text/javascript">
$("#bookTypeList li").eq(0).addClass("active");
// todoList
$.ajax({
url:"/v1/foobizzle.json",
method:"get",
success:function(data){
var resultHtml = "<ul>";
for(var i=0; i<data.length; i++){
resultHtml += "<li>" +data[i].title+" - " +(data[i].done?"完成":"未完成") + "</li>";
}
resultHtml += "</ul>";
$("#todoList").html(resultHtml);
}
});
// tab switch
//使用mustache模板，先创建模板html，然后在js中获取模板tpl,[Mustache.parse(tpl)]
var bookData;
function getBook(callback){
$.ajax({
url:"/v1/book.json",
method:'get',
success:function(data){
bookData = data;
var tTypeList = $("#type-list-template").html();
Mustache.parse(tTypeList);
$("#bookTypeList").append(Mustache.render(tTypeList,data));
var tBookList = $("#book-list-template").html();
Mustache.parse(tBookList);
$("#bookList tbody").html(Mustache.render(tBookList,data[0]['books']));
$("#bookTypeList li").click(function(){
var idx = $(this).index();
$("#bookList tbody").html(Mustache.render(tBookList,data[idx]['books']));
$(this).addClass("active").siblings().removeClass("active");
});
callback(bookData);
}
});
}
getBook(function(data){
console.dir(data);
});
</script>
</body>
</html>
book.json:
[{
"type":"名著",
"books":[{
"name":"西游记",
"author":"黄承恩",
"price":123.00,
"bookNo":"M001"
},{
"name":"红楼梦",
"author":"曹雪芹",
"price":110.00,
"bookNo":"M002"
}]
},{
"type":"动漫",
"books":[{
"name":"黑猫警长",
"author":"毛毛",
"price":23.00,
"bookNo":"D001"
},{
"name":"多啦A梦",
"author":"啊啊",
"price":23.00,
"bookNo":"D002"
}]
}]
引入文件（mustache.js）：
(function defineMustache(global,factory){if(typeof exports==="object"&&exports&&typeof exports.nodeName!=="string"){factory(exports)}else if(typeof define==="function"&&define.amd){define(["exports"],factory)}else{global.Mustache={};factory(global.Mustache)}})(this,function mustacheFactory(mustache){var objectToString=Object.prototype.toString;var isArray=Array.isArray||function isArrayPolyfill(object){return objectToString.call(object)==="[object Array]"};function isFunction(object){return typeof object==="function"}function typeStr(obj){return isArray(obj)?"array":typeof obj}function escapeRegExp(string){return string.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g,"\\$&")}function hasProperty(obj,propName){return obj!=null&&typeof obj==="object"&&propName in obj}var regExpTest=RegExp.prototype.test;function testRegExp(re,string){return regExpTest.call(re,string)}var nonSpaceRe=/\S/;function isWhitespace(string){return!testRegExp(nonSpaceRe,string)}var entityMap={"&":"&","<":"<",">":">",'"':""","'":"'","/":"/","`":"`","=":"="};function escapeHtml(string){return String(string).replace(/[&<>"'`=\/]/g,function fromEntityMap(s){return entityMap[s]})}var whiteRe=/\s*/;var spaceRe=/\s+/;var equalsRe=/\s*=/;var curlyRe=/\s*\}/;var tagRe=/#|\^|\/|>|\{|&|=|!/;function parseTemplate(template,tags){if(!template)return[];var sections=[];var tokens=[];var spaces=[];var hasTag=false;var nonSpace=false;function stripSpace(){if(hasTag&&!nonSpace){while(spaces.length)delete tokens[spaces.pop()]}else{spaces=[]}hasTag=false;nonSpace=false}var openingTagRe,closingTagRe,closingCurlyRe;function compileTags(tagsToCompile){if(typeof tagsToCompile==="string")tagsToCompile=tagsToCompile.split(spaceRe,2);if(!isArray(tagsToCompile)||tagsToCompile.length!==2)throw new Error("Invalid tags: "+tagsToCompile);openingTagRe=new RegExp(escapeRegExp(tagsToCompile[0])+"\\s*");closingTagRe=new RegExp("\\s*"+escapeRegExp(tagsToCompile[1]));closingCurlyRe=new RegExp("\\s*"+escapeRegExp("}"+tagsToCompile[1]))}compileTags(tags||mustache.tags);var scanner=new Scanner(template);var start,type,value,chr,token,openSection;while(!scanner.eos()){start=scanner.pos;value=scanner.scanUntil(openingTagRe);if(value){for(var i=0,valueLength=value.length;i<valueLength;++i){chr=value.charAt(i);if(isWhitespace(chr)){spaces.push(tokens.length)}else{nonSpace=true}tokens.push(["text",chr,start,start+1]);start+=1;if(chr==="\n")stripSpace()}}if(!scanner.scan(openingTagRe))break;hasTag=true;type=scanner.scan(tagRe)||"name";scanner.scan(whiteRe);if(type==="="){value=scanner.scanUntil(equalsRe);scanner.scan(equalsRe);scanner.scanUntil(closingTagRe)}else if(type==="{"){value=scanner.scanUntil(closingCurlyRe);scanner.scan(curlyRe);scanner.scanUntil(closingTagRe);type="&"}else{value=scanner.scanUntil(closingTagRe)}if(!scanner.scan(closingTagRe))throw new Error("Unclosed tag at "+scanner.pos);token=[type,value,start,scanner.pos];tokens.push(token);if(type==="#"||type==="^"){sections.push(token)}else if(type==="/"){openSection=sections.pop();if(!openSection)throw new Error('Unopened section "'+value+'" at '+start);if(openSection[1]!==value)throw new Error('Unclosed section "'+openSection[1]+'" at '+start)}else if(type==="name"||type==="{"||type==="&"){nonSpace=true}else if(type==="="){compileTags(value)}}openSection=sections.pop();if(openSection)throw new Error('Unclosed section "'+openSection[1]+'" at '+scanner.pos);return nestTokens(squashTokens(tokens))}function squashTokens(tokens){var squashedTokens=[];var token,lastToken;for(var i=0,numTokens=tokens.length;i<numTokens;++i){token=tokens[i];if(token){if(token[0]==="text"&&lastToken&&lastToken[0]==="text"){lastToken[1]+=token[1];lastToken[3]=token[3]}else{squashedTokens.push(token);lastToken=token}}}return squashedTokens}function nestTokens(tokens){var nestedTokens=[];var collector=nestedTokens;var sections=[];var token,section;for(var i=0,numTokens=tokens.length;i<numTokens;++i){token=tokens[i];switch(token[0]){case"#":case"^":collector.push(token);sections.push(token);collector=token[4]=[];break;case"/":section=sections.pop();section[5]=token[2];collector=sections.length>0?sections[sections.length-1][4]:nestedTokens;break;default:collector.push(token)}}return nestedTokens}function Scanner(string){this.string=string;this.tail=string;this.pos=0}Scanner.prototype.eos=function eos(){return this.tail===""};Scanner.prototype.scan=function scan(re){var match=this.tail.match(re);if(!match||match.index!==0)return"";var string=match[0];this.tail=this.tail.substring(string.length);this.pos+=string.length;return string};Scanner.prototype.scanUntil=function scanUntil(re){var index=this.tail.search(re),match;switch(index){case-1:match=this.tail;this.tail="";break;case 0:match="";break;default:match=this.tail.substring(0,index);this.tail=this.tail.substring(index)}this.pos+=match.length;return match};function Context(view,parentContext){this.view=view;this.cache={".":this.view};this.parent=parentContext}Context.prototype.push=function push(view){return new Context(view,this)};Context.prototype.lookup=function lookup(name){var cache=this.cache;var value;if(cache.hasOwnProperty(name)){value=cache[name]}else{var context=this,names,index,lookupHit=false;while(context){if(name.indexOf(".")>0){value=context.view;names=name.split(".");index=0;while(value!=null&&index<names.length){if(index===names.length-1)lookupHit=hasProperty(value,names[index]);value=value[names[index++]]}}else{value=context.view[name];lookupHit=hasProperty(context.view,name)}if(lookupHit)break;context=context.parent}cache[name]=value}if(isFunction(value))value=value.call(this.view);return value};function Writer(){this.cache={}}Writer.prototype.clearCache=function clearCache(){this.cache={}};Writer.prototype.parse=function parse(template,tags){var cache=this.cache;var tokens=cache[template];if(tokens==null)tokens=cache[template]=parseTemplate(template,tags);return tokens};Writer.prototype.render=function render(template,view,partials){var tokens=this.parse(template);var context=view instanceof Context?view:new Context(view);return this.renderTokens(tokens,context,partials,template)};Writer.prototype.renderTokens=function renderTokens(tokens,context,partials,originalTemplate){var buffer="";var token,symbol,value;for(var i=0,numTokens=tokens.length;i<numTokens;++i){value=undefined;token=tokens[i];symbol=token[0];if(symbol==="#")value=this.renderSection(token,context,partials,originalTemplate);else if(symbol==="^")value=this.renderInverted(token,context,partials,originalTemplate);else if(symbol===">")value=this.renderPartial(token,context,partials,originalTemplate);else if(symbol==="&")value=this.unescapedValue(token,context);else if(symbol==="name")value=this.escapedValue(token,context);else if(symbol==="text")value=this.rawValue(token);if(value!==undefined)buffer+=value}return buffer};Writer.prototype.renderSection=function renderSection(token,context,partials,originalTemplate){var self=this;var buffer="";var value=context.lookup(token[1]);function subRender(template){return self.render(template,context,partials)}if(!value)return;if(isArray(value)){for(var j=0,valueLength=value.length;j<valueLength;++j){buffer+=this.renderTokens(token[4],context.push(value[j]),partials,originalTemplate)}}else if(typeof value==="object"||typeof value==="string"||typeof value==="number"){buffer+=this.renderTokens(token[4],context.push(value),partials,originalTemplate)}else if(isFunction(value)){if(typeof originalTemplate!=="string")throw new Error("Cannot use higher-order sections without the original template");value=value.call(context.view,originalTemplate.slice(token[3],token[5]),subRender);if(value!=null)buffer+=value}else{buffer+=this.renderTokens(token[4],context,partials,originalTemplate)}return buffer};Writer.prototype.renderInverted=function renderInverted(token,context,partials,originalTemplate){var value=context.lookup(token[1]);if(!value||isArray(value)&&value.length===0)return this.renderTokens(token[4],context,partials,originalTemplate)};Writer.prototype.renderPartial=function renderPartial(token,context,partials){if(!partials)return;var value=isFunction(partials)?partials(token[1]):partials[token[1]];if(value!=null)return this.renderTokens(this.parse(value),context,partials,value)};Writer.prototype.unescapedValue=function unescapedValue(token,context){var value=context.lookup(token[1]);if(value!=null)return value};Writer.prototype.escapedValue=function escapedValue(token,context){var value=context.lookup(token[1]);if(value!=null)return mustache.escape(value)};Writer.prototype.rawValue=function rawValue(token){return token[1]};mustache.name="mustache.js";mustache.version="2.2.1";mustache.tags=["{{","}}"];var defaultWriter=new Writer;mustache.clearCache=function clearCache(){return defaultWriter.clearCache()};mustache.parse=function parse(template,tags){return defaultWriter.parse(template,tags)};mustache.render=function render(template,view,partials){if(typeof template!=="string"){throw new TypeError('Invalid template! Template should be a "string" '+'but "'+typeStr(template)+'" was given as the first '+"argument for mustache#render(template, view, partials)")}return defaultWriter.render(template,view,partials)};mustache.to_html=function to_html(template,view,partials,send){var result=mustache.render(template,view,partials);if(isFunction(send)){send(result)}else{return result}};mustache.escape=escapeHtml;mustache.Scanner=Scanner;mustache.Context=Context;mustache.Writer=Writer});
