|
|
|
|
<!DOCTYPE html>
|
|
|
|
|
<html>
|
|
|
|
|
<head>
|
|
|
|
|
<meta charset="utf-8">
|
|
|
|
|
<meta name="viewport" content="width=device-width, initial-scale=1">
|
|
|
|
|
<title>视图模板引擎 - layui</title>
|
|
|
|
|
|
|
|
|
|
<link rel="stylesheet" href="../src/css/layui.css">
|
|
|
|
|
<style>
|
|
|
|
|
.laytpl-demo{border: 1px solid #EBEBEB;}
|
|
|
|
|
.laytpl-demo>textarea{position: relative; display: block; width:100%; height: 300px; padding: 11px; border: 0; box-sizing: border-box; resize: none; background-color: #fff; font-family: Courier New; font-size: 13px;}
|
|
|
|
|
.laytpl-demo>div:first-child{height: 32px; line-height: 32px; padding: 6px 11px; border-bottom: 1px solid #EBEBEB; background-color: #F8F9FA;}
|
|
|
|
|
</style>
|
|
|
|
|
</head>
|
|
|
|
|
<body>
|
|
|
|
|
|
|
|
|
|
<div>
|
|
|
|
|
|
|
|
|
|
<div class="layui-row">
|
|
|
|
|
<div class="layui-col-xs6 laytpl-demo">
|
|
|
|
|
<div>模板</div>
|
|
|
|
|
<textarea id="demoTPL1"><h1>{{ d.title }}</h1>
|
|
|
|
|
|
|
|
|
|
<p>转义输出(HTML)：{{ d.desc }}</p>
|
|
|
|
|
<p>转义输出(HTML)：{{= d.desc }}</p>
|
|
|
|
|
<p>原始输出(HTML)：{{- d.desc }}</p>
|
|
|
|
|
{{#}}
|
|
|
|
|
|
|
|
|
|
<div class="layui-section">
|
|
|
|
|
<hr>
|
|
|
|
|
<ul>
|
|
|
|
|
{{# var str = "a b c";
|
|
|
|
|
layui.each(d.items, function(index, item){ }}
|
|
|
|
|
<li class="{{ index > 0 ? 'list' : '' }}">
|
|
|
|
|
<strong>{{ item.title }}</strong>
|
|
|
|
|
{{# if(item.content){ }}
|
|
|
|
|
<span>{{ item.content }}</span>
|
|
|
|
|
{{# } }}
|
|
|
|
|
<span>{{ item.time || '' }}</span>
|
|
|
|
|
{{ str }}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
{{# }); if(d.items.length === 0){ }}
|
|
|
|
|
无数据
|
|
|
|
|
{{# } }}
|
|
|
|
|
</ul>
|
|
|
|
|
<hr>
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
<div>
|
|
|
|
|
{{ d.content || '' }}
|
|
|
|
|
{{ }} {{}}
|
|
|
|
|
{{ }}
|
|
|
|
|
|
|
|
|
|
\a
|
|
|
|
|
'12'"""""
|
|
|
|
|
"哈''哈"
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
<p>渲染时间：{{ layui.util.toDateString(new Date()) }}</p></textarea>
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
<div class="layui-col-xs6 laytpl-demo">
|
|
|
|
|
<div class="layui-row">
|
|
|
|
|
<div class="layui-col-xs3">数据</div>
|
|
|
|
|
<div class="layui-col-xs9" style="text-align: right">
|
|
|
|
|
<button class="layui-btn layui-btn-sm layui-btn-primary" lay-on="createData">生成数据</button>
|
|
|
|
|
</div>
|
|
|
|
|
</div>
|
|
|
|
|
<textarea id="demoData1">
|
|
|
|
|
{
|
|
|
|
|
"title": "标题",
|
|
|
|
|
"desc": "<a href=\"\" style=\"color:blue;\">一段描述</a>",
|
|
|
|
|
"items": [
|
|
|
|
|
{
|
|
|
|
|
"title": "list 1",
|
|
|
|
|
"child": [{
|
|
|
|
|
"title": "list 1-1",
|
|
|
|
|
"child": [{
|
|
|
|
|
"title": "list 1-1-1"
|
|
|
|
|
}]
|
|
|
|
|
}]
|
|
|
|
|
},
|
|
|
|
|
{
|
|
|
|
|
"title": "list 2",
|
|
|
|
|
"child": [{
|
|
|
|
|
"title": "list 2-1"
|
|
|
|
|
}]
|
|
|
|
|
},
|
|
|
|
|
{"title": "list 3"}
|
|
|
|
|
]
|
|
|
|
|
}</textarea>
|
|
|
|
|
</div>
|
|
|
|
|
<div class="layui-col-xs12 laytpl-demo">
|
|
|
|
|
<div class="layui-row">
|
|
|
|
|
<div class="layui-col-xs4">视图</div>
|
|
|
|
|
<div class="layui-col-xs4" style="text-align: center">
|
|
|
|
|
<button class="layui-btn layui-btn-sm layui-btn-primary" lay-on="test1">性能测试</button>
|
|
|
|
|
</div>
|
|
|
|
|
<div class="layui-col-xs4" style="text-align: right">
|
|
|
|
|
<span id="demoViewTime"></span>
|
|
|
|
|
</div>
|
|
|
|
|
</div>
|
|
|
|
|
<div class="layui-padding-sm" id="demoView1"></div>
|
|
|
|
|
</div>
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<script type="type/html" template id="demoTplCommon">
|
|
|
|
|
公共模板 - {{ d.title }}
|
|
|
|
|
</script>
|
|
|
|
|
|
|
|
|
|
<script type="type/html" template id="demoTplList">
|
|
|
|
|
{{# if(d.items && d.items.length > 0){ }}
|
|
|
|
|
<ul>
|
|
|
|
|
{{# layui.each(d.items, function(index, item){ }}
|
|
|
|
|
<li><strong>{{ item.title }}</strong>{{ laytpl.include('demoTplList', {items: item.child}) }}</li>
|
|
|
|
|
{{# }); }}
|
|
|
|
|
</ul>
|
|
|
|
|
{{# } }}
|
|
|
|
|
</script>
|
|
|
|
|
|
|
|
|
|
<script type="type/html" template id="laytplTestTpl">
|
|
|
|
|
{{# for(var i = 0; i < d.items.length; i++){ }}
|
|
|
|
|
第{{= d.items[i].index }}个，Name: {{- d.items[i].name }} Number: {{= d.items[i].number }}
|
|
|
|
|
{{# } }}
|
|
|
|
|
</script>
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
<script src="../src/layui.js"></script>
|
|
|
|
|
<script>
|
|
|
|
|
layui.use(['laytpl', 'util'], function(){
|
|
|
|
|
var laytpl = layui.laytpl;
|
|
|
|
|
var util = layui.util;
|
|
|
|
|
var $ = layui.$;
|
|
|
|
|
|
|
|
|
|
//获取模板和数据
|
|
|
|
|
var get = function(type){
|
|
|
|
|
return {
|
|
|
|
|
template: $('#demoTPL1').val() //获取模板
|
|
|
|
|
,data: function(){ //获取数据
|
|
|
|
|
try {
|
|
|
|
|
return JSON.parse($('#demoData1').val());
|
|
|
|
|
} catch(e){
|
|
|
|
|
$('#demoView1').html(e);
|
|
|
|
|
}
|
|
|
|
|
}()
|
|
|
|
|
};
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
var data = get();
|
|
|
|
|
|
|
|
|
|
//耗时计算
|
|
|
|
|
var startTime = new Date().getTime(), timer = function(startTime, title){
|
|
|
|
|
var endTime = new Date().getTime();
|
|
|
|
|
$('#demoViewTime').html((title || '模板解析耗时：')+ (endTime - startTime) + 'ms');
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
//渲染模板
|
|
|
|
|
var thisTpl = laytpl(data.template);
|
|
|
|
|
|
|
|
|
|
//执行渲染
|
|
|
|
|
thisTpl.render(data.data, function(view){
|
|
|
|
|
timer(startTime);
|
|
|
|
|
$('#demoView1').html(view);
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
//编辑
|
|
|
|
|
$('.laytpl-demo textarea').on('input', function(){
|
|
|
|
|
var data = get();
|
|
|
|
|
if(!data.data) return;
|
|
|
|
|
|
|
|
|
|
//计算模板渲染耗时
|
|
|
|
|
var startTime = new Date().getTime();
|
|
|
|
|
|
|
|
|
|
//若模板有变化，则重新解析模板；若模板没变，数据有变化，则从模板缓存中直接渲染（效率大增）
|
|
|
|
|
if(this.id === 'demoTPL1'){
|
|
|
|
|
thisTpl.parse(data.template, data.data); //解析模板
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
//执行渲染
|
|
|
|
|
thisTpl.render(data.data, function(view){
|
|
|
|
|
timer(startTime);
|
|
|
|
|
$('#demoView1').html(view);
|
|
|
|
|
});
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
//事件
|
|
|
|
|
util.event('lay-on', {
|
|
|
|
|
//性能测试
|
|
|
|
|
test1: function(){
|
|
|
|
|
var dataLen = 1000 //数据量
|
|
|
|
|
,renderTimes = 1000; //渲染次数
|
|
|
|
|
|
|
|
|
|
//初始化数据
|
|
|
|
|
var data = {
|
|
|
|
|
title: '性能测试'
|
|
|
|
|
,items: function(items){
|
|
|
|
|
for(var i = 0; i < dataLen; i++){
|
|
|
|
|
items.push({
|
|
|
|
|
index: i
|
|
|
|
|
,name: '<strong style="color: red;">张三</strong>'
|
|
|
|
|
,number: 100+i
|
|
|
|
|
});
|
|
|
|
|
}
|
|
|
|
|
return items;
|
|
|
|
|
}([])
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
//模板
|
|
|
|
|
var startTime = new Date();
|
|
|
|
|
for(var j = 0; j < renderTimes; j++){
|
|
|
|
|
var template = document.getElementById('laytplTestTpl').innerHTML;
|
|
|
|
|
var html = laytpl(template).render(data);
|
|
|
|
|
}
|
|
|
|
|
timer(startTime, '本次测试耗时：');
|
|
|
|
|
$('#demoView1').html(html);
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
// 自定义标签符
|
|
|
|
|
laytpl(`
|
|
|
|
|
<%# var job = ["前端工程师"]; %>
|
|
|
|
|
<%= d.name %>是一名<%= job[d.type] %>。
|
|
|
|
|
`, {
|
|
|
|
|
open: '<%',
|
|
|
|
|
close: '%>'
|
|
|
|
|
}).render({
|
|
|
|
|
name: '张三',
|
|
|
|
|
type: 0
|
|
|
|
|
}, function(str){
|
|
|
|
|
console.log(str); // 张三是一名前端工程师。
|
|
|
|
|
});
|
|
|
|
|
});
|
|
|
|
|
</script>
|
|
|
|
|
</body>
|
|
|
|
|
</html>
|
