模板引擎dot.js

一、基本符号

{{= }} for interpolation  //插入
{{ }} for evaluation  //求值
{{~ }} for array iteration //数组循环迭代
{{? }} for conditionals //条件
{{! }} for interpolation with encoding //编码
{{# }} for compile-time evaluation/includes and partials //编译时间
{{## #}} for compile-time defines 

二、调用方式

var tmpText = doT.template(模板);
tmpText(数据源);

三、实例

• 实例1

for interpolation 赋值

格式：
{{= }}

1. 数据源：

{"name":"Jake","age":31}

2. 区域:

<div id="interpolation"></div>

3. 模板：

<script id="interpolationtmpl" type="text/x-dot-template">
    <div>Hi {{=it.name}}!</div>
    <div>{{=it.age || ''}}</div>
</script>

4. 调用方式：

var dataInter = {"name":"Jake","age":31};
var interText = doT.template($("#interpolationtmpl").text());
$("#interpolation").html(interText(dataInter));

• 实例2

for evaluation for in 循环

1. 格式：

{{ for var key in data { }} 
{{= key }} 
{{ } }}

2. 数据源：

{"name":"Jake","age":31,"interests":["basketball","hockey","photography"],"
contact":{"email":"jake@xyz.com","phone":"999999999"}}

c

<div id="evaluation"></div>

4. 模板：

<script id="evaluationtmpl" type="text/x-dot-template">
    {{ for(var prop in it) { }}
        <div>KEY:{{= prop }}---VALUE:{{= it[prop] }}</div>
    {{ } }}
</script>

5.调用方式：

var dataEval = {"name":"Jake","age":31,"interests":["basketball","hockey","photography"],
"contact":{"email":"jake@xyz.com","phone":"999999999"}};
var evalText = doT.template($("#evaluationtmpl").text());
$("#evaluation").html(evalText(dataEval));

• 实例3

for array iteration 数组

1. 格式：

{{~data.array :value:index }}
    ...
{{~}}

2. 数据源：

{"array":["banana","apple","orange"]}

3. 区域：

<div id="arrays"></div>

4. 模板：

<script id="arraystmpl" type="text/x-dot-template">
    {{~it.array:value:index}}
        <div>{{= index+1 }}{{= value }}!</div>
    {{~}}
</script>

5.调用方式：

var dataArr = {"array":["banana","apple","orange"]};
var arrText = doT.template($("#arraystmpl").text());
$("#arrays").html(arrText(dataArr));

• 实例4

{{? }} for conditionals 条件

1. 格式：

{{? }} if
{{?? }} else if
{{??}} else

2. 数据源：

{"name":"Jake","age":31}

3. 区域：

<div id="condition"></div>

4. 模板：

<script id="conditionstmpl" type="text/x-dot-template">
    {{? !it.name }}
    <div>Oh, I love your name, {{=it.name}}!</div>
    {{?? !it.age === 0}}
    <div>Guess nobody named you yet!</div>
    {{??}}
    You are {{=it.age}} and still dont have a name?
    {{?}}
</script>

5.调用方式：

var dataEncode = {"uri":"http://jq22.com/?keywords=Yoga",
"html":"<div style='background: #f00; height: 30px; line-height: 30px;'>html元素</div>"};
var EncodeText = doT.template($("#encodetmpl").text());
$("#encode").html(EncodeText(dataEncode));

• 实例5

for interpolation with encoding

1. 格式：

{"uri":"[http://jq22.com/?keywords=Yoga](http://jq22.com/?keywords=Yoga)"}

2. 数据源：

{{!it.uri}}

3. 区域：

<div id="encode"></div>

4. 模板：

<script id="encodetmpl" type="text/x-dot-template">
    Visit {{!it.uri}} {{!it.html}}
</script>

5.调用方式：

var dataEncode = {"uri":"http://jq22.com/?keywords=Yoga",
"html":"<div style='background: #f00; height: 30px; line-height: 30px;'>html元素</div>"};
var EncodeText = doT.template($("#encodetmpl").text());
$("#encode").html(EncodeText(dataEncode));

{{# }} for compile-time evaluation/includes and partials

{{## #}} for compile-time defines

1. 数据源：

{"name":"Jake","age":31}

2. 区域：

<div id="part"></div>

3. 模板：

<script id="parttmpl" type="text/x-dot-template">
    {{##def.snippet:
    <div>{{=it.name}}</div>{{#def.joke}}
    #}}
    {{#def.snippet}}
    {{=it.html}}
</script>

4.调用方式：

var dataPart = {"name":"Jake","age":31,"html":"<div style='background: #f00; 
height: 30px; line-height: 30px;'>html元素</div>"};
var defPart = {"joke":"<div>{{=it.name}} who?</div>"};
var partText = doT.template($("#parttmpl").text(), undefined, defPart);
$("#part").html(partText(dataPart));