Summary of the use of javascript front-end template engine framework artTemplate

artTemplate is Tencent's open source front-end template framework. It is similar to mustache and handlerbars. It can be easily used in web projects and is quick to get started. If you have used mustache, you can almost quickly switch to the template framework.

Learning process:

1. Syntax introduction:

Data binding: similar to angularjs, except that the view and model are separate For directional binding, the model changes and the view changes, but not the other way around.

<script id="tpl1" type="text/template">
	<h1 id="data-nbsp-mapping-nbsp-example">1、data mapping example</h1>
	<h2 id="message">{{message}}</h2>
</script>
//js中使用模板渲染
var data1 = {message:"hello,artTemplate is a javasript framework."};
$("node1").innerHTML = template("tpl1",data1);

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Conditional judgment: A single if is supported here, and an else branch can also be added. There is no else if branch.

{{if isShow}}
	<h3 id="满足条件展示消息-message">(2、满足条件展示消息：{{message}}</h3>
{{else}}
	<h3 id="x-条件不满足-展示默认消息">(2x、条件不满足，展示默认消息</h3>
{{/if}}

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Traverse the collection:

{{each list as item index}}
	<h3 id="the-nbsp-index-nbsp-of-nbsp-message-nbsp-is-nbsp-nbsp-index-nbsp-nbsp-item">the index of message is : {{index+1}} -> {{item}}</h3>
{{/each}}

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Auxiliary function: can be used to connect the backend The requested data is mapped, such as 1->normal, 0->error. When using it, you only need to pass "|func" after the expression, such as {{message | filterhandler}}, where filterhandler is a custom auxiliary function.

First define an auxiliary function. What is defined here is a simple date format conversion function.

template.helper("date2str",function(date){
var today = new Date(date);
var year = today.getFullYear();
var month = today.getMonth()+1;
if(month<10)month = "0"+month;
var day = today.getDate();
if(day<10)day = "0"+day;
return year+"-"+month+"-"+day;
 });

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Use auxiliary functions

<p id="node4"></p> 
<script id="tpl4" type="text/template">
	<h1 id="template-helper-nbsp-func-nbsp-example">4、template.helper func example</h1>
	<h3 id="today-nbsp-is-nbsp-datenow-nbsp-nbsp-date-str">today is {{datenow | date2str}}</h3>
 </script>

//js代码中调用
 var data4 = {datenow:new Date()};
 $("node4").innerHTML = template("tpl4",data4);

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Pre-compilation: Different from using templates, pre-compilation requires a string type document fragment, and then passes the data to Precompiled templates are rendered.

var tpl5 = "<h1 id="compile-nbsp-example">5、compile example</h1><h3 id="this-nbsp-is-nbsp-a-nbsp-string-nbsp-the-nbsp-type-nbsp-is-nbsp-not-nbsp-type">this is a string the type is not {{type}}</h3>";
$("node5").innerHTML = template.compile(tpl5)({type:"text/template"});

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Reference sub-template:

<p id="node6"></p>
<script id="tpl6" type="text/template">
<h1 id="include-nbsp-child-nbsp-template-nbsp-example">6、include child template example</h1>
<p class="parenttemplate">
	<h3 id="parent-nbsp-template">parent template</h3>
	{{include &#39;tpl6-child&#39;}}
</p>
</script>
<script id="tpl6-child" type="text/template">
<p class="childtemplate">
	<h3 id="child-nbsp-template">child template</h3>
</p>
</script>

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2. Download the template.js library and introduce it into the html file.

3. Here is a comprehensive example to practice some of the syntax introduced earlier:

<!doctype html>
<html>
<head>
<meta charset="UTF-8"/>
<title>artTemplate example</title>
<style type="text/css">
*{margin:0;}
h1,h2,h3{margin:3px;}
h2,h3{text-indent:20px;}
.parenttemplate{background:#ccc;width:600px;height:60px;}
.childtemplate{background:lightblue;}
</style>
<script type="text/javascript" src="template.js"></script>
<script>
  function $(id){return document.getElementById(id);}
  window.onload = function(){
    //data mapping
    var data1 = {message:"hello,artTemplate is a javasript framework."};
    $("node1").innerHTML = template("tpl1",data1);
    //if condition
    var data2 = {isShow:true,message:"hello,template"};
    $("node2").innerHTML = template("tpl2",data2);
    data2.isShow = false;
    $("node2x").innerHTML = template("tpl2",data2);
    //list foreach
    var data3 = {list:["Javascript","JQuery","artTemplate"]};
    $("node3").innerHTML = template("tpl3",data3);
    //helper function
    template.helper("date2str",function(date){
      var today = new Date(date);
      var year = today.getFullYear();
      var month = today.getMonth()+1;
      if(month<10)month = "0"+month;
      var day = today.getDate();
      if(day<10)day = "0"+day;
      return year+"-"+month+"-"+day;
    });
    var data4 = {datenow:new Date()};
    $("node4").innerHTML = template("tpl4",data4);
    //compile example
    var tpl5 = "<h1 id="compile-nbsp-example">5、compile example</h1><h3>this is a string the type is not {{type}} 
    </h3>";
    $("node5").innerHTML = template.compile(tpl5)({type:"text/template"});
    $("node6").innerHTML = template("tpl6",{});
    //escape html
    $("node7").innerHTML = template("tpl7",{message:"<span>escape html tag</span>"});
  }
</script>
</head>
<body>
	     <p id="node1"></p>
	     <script id="tpl1" type="text/template">
		    <h1 id="data-nbsp-mapping-nbsp-example">1、data mapping example</h1>
		    <h2 id="message">{{message}}</h2>
		 </script>
		 <p id="node2"></p>
		 <p id="node2x"></p>
		 <script id="tpl2" type="text/template">
		     <h1 id="if-nbsp-condition-nbsp-example">2、if condition example</h1>
		    {{if isShow}}
			   <h3 id="满足条件展示消息-message">(2、满足条件展示消息：{{message}}</h3>
			{{else}}
			   <h3 id="x-条件不满足-展示默认消息">(2x、条件不满足，展示默认消息</h3>
			{{/if}}
		 </script>
		 <p id="node3"></p>
		 <script id="tpl3" type="text/template">
		    <h1 id="list-nbsp-example">3、list example</h1>
		    {{each list as item index}}
			   <h3 id="the-nbsp-index-nbsp-of-nbsp-message-nbsp-is-nbsp-nbsp-index-nbsp-nbsp-item">the index of message is : {{index+1}} -> {{item}}</h3>
			{{/each}}
		 </script>
		 <p id="node4"></p>
		 <script id="tpl4" type="text/template">
		    <h1 id="template-helper-nbsp-func-nbsp-example">4、template.helper func example</h1>
			<h3 id="today-nbsp-is-nbsp-datenow-nbsp-nbsp-date-str">today is {{datenow | date2str}}</h3>
		 </script>
		 <p id="node5"></p>
		 <p id="node6"></p>
		 <script id="tpl6" type="text/template">
		     <h1 id="include-nbsp-child-nbsp-template-nbsp-example">6、include child template example</h1>
		     <p class="parenttemplate">
		        <h3 id="parent-nbsp-template">parent template</h3>
				{{include &#39;tpl6-child&#39;}}
			 </p>
		 </script>
		 <script id="tpl6-child" type="text/template">
		     <p class="childtemplate">
				   <h3 id="child-nbsp-template">child template</h3>
			 </p>
		 </script>
		 <p id="node7"></p>
		 <script id="tpl7" type="text/template">
		     <h1 id="escape-nbsp-html-nbsp-tag-nbsp-example">7、escape html tag example</h1>
		     <h3 id="origin-nbsp-expression-nbsp-nbsp-message">origin expression : {{#message}}</h3>
			 <h3 id="after-nbsp-escape-nbsp-nbsp-nbsp-message">after escape ==> : {{message}}</h3>
		 </script>
	</body>
</html>

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Run this example and you will get the following effect:

Summary of the use of javascript front-end template engine framework artTemplate - CSDN Blog

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