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    doT.js的使用

     

    引言

    doT.js可以更好的在html端使用json数据。

    {{ }}     for evaluation 模板标记符
    {{= }}    for interpolation 输出显示,默认变量名叫it
    {{! }}    for interpolation with encoding 编码后输出显示
    {{? }}    for conditionals 条件分支,if条件的简写
    {{~ }}    for array iteration 遍历数组

    使用

    引入js

        <script type="text/javascript" src="../script/doT.min.js"></script>
        <!-- jquery 移动端替代品 -->
        <script type="text/javascript" src="../script/zepto.min.js"></script>
        <!--<script type="text/javascript" src="../script/jquery.min.js"></script>-->

    功能点

    1.for interpolation 赋值

    格式:

    {{= }}

    数据源:

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

    区域:

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

    模板:

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

    调用方式:

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

    2.for evaluation for in 循环

    格式:

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

    数据源:

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

    区域:

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

    模板:

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

    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));

    3.for array iteration 数组

    格式:

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

    数据源:

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

    区域:

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

    模板:

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

    调用方式:

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

    4.for conditionals 条件

    格式:

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

    数据源:

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

    区域:

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

    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>

    调用方式:

    var dataCondition = {"age":31};
    var conText = doT.template($("#conditionstmpl").text());
    $("#condition").html(conText(dataCondition));
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  • 原文地址:https://www.cnblogs.com/shuia/p/9241218.html
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