Javascript Mustache-渲染变量值
我有两个html主页和大约主页,页面顶部定义了一个js变量:Javascript Mustache-渲染变量值,javascript,json,mustache,Javascript,Json,Mustache,我有两个html主页和大约主页,页面顶部定义了一个js变量: var pageAlias = 'home'; // on the home page var pageAlias = 'about'; // on the about page 我想把它传递给mustache,并输出与mustache键相关的值。基本上,json有一个所有页面标题的列表,我想提取与动态pageAlias匹配的页面标题。但不是为我工作。以下是我所拥有的: 每个html页面中包含的pageHeading.js: //
var pageAlias = 'home'; // on the home page
var pageAlias = 'about'; // on the about page
我想把它传递给mustache,并输出与mustache键相关的值。基本上,json有一个所有页面标题的列表,我想提取与动态pageAlias匹配的页面标题。但不是为我工作。以下是我所拥有的:
每个html页面中包含的pageHeading.js:
// Page Heading
$.getJSON('page_heading.json', {}, function(templateData, textStatus, jqXHr) {
var templateHolder = $('#page_heading_template_holder');
// defined on every page as a var on the very top
// to pull in page title from Alias, so we can call it in mustache
var pageHeadingData = { "pageAlias" : pageAlias}
// merge pageAlias with json data
var templateData = $.extend(templateData, pageHeadingData);
$.get('page_heading.mustache.html', function(template, textStatus, jqXhr) {
templateHolder.append(Mustache.render($(template).filter('#page_heading_template').html(), templateData));
});
});
这使我们能够呈现page_heading.json和page_heading.mustache.html mustache.html这两个页面,这两个页面都可以重用。在这里,我们将json插入到mustache模板中,还添加了var pageHeadingData={pageAlias:pageAlias},并将其与原始加载的json合并
显示合并页面别名的page_heading.json
{
"pageHeading": {
"home": {
"title" : "Welcome to our website!"
},
"about": {
"title" : "Where we came from."
}
},
"pageAlias" : "home" //merged dynamically from .js to get pageAlias
}
现在的问题是,小胡子无法获取pageAlias值home,在pageHeading下找到它,并呈现标题:
page_heading.mustache.html正在工作
// This works and pulls the title, but is not dynamic
<script id="page_heading_template" type="text/html">
<div class="page-heading">
{{#pageHeading.home}}
<h1>{{{title}}}</h1>
{{/pageHeading.home}}
</div>
</script>
page_heading.mustache.html不起作用-需要这方面的帮助吗
// This does not work, pageAlias is taken literally and mustache looks for it
// in json not it's value, 'home', so the title is never returned
<script id="page_heading_template" type="text/html">
<div class="page-heading">
{{#pageHeading.pageAlias}}
<h1>{{{title}}}</h1>
{{/pageHeading.pageAlias}}
</div>
</script>
我如何实现这一点,获取pageAlias动态值,以呈现相应的pageHeading?您试图访问的是pageHeading[pageAlias],这是Mustach无法实现的。您应该尝试以下方法:
<script id="page_heading_template" type="text/html">
<div class="page-heading">
<h1>{{{title}}}</h1>
<h2>{{{subtitle}}}</h1>
<div>
</script>
{
home: {title: 'Welcome...', subtitle: 'yay, you made it!'},
about: {title: 'Where we came from', subtitle: 'and where we did not come from'}
}
var pageAlias = 'home';
// get the 'sub-object' instead of merging
// so that templateData looks like this:
// {title: 'Welcome to our website!', subttile: 'yay, you made it!'}
var templateData = pageHeading[pageAlias];
为什么不在JS端设置标题,而不是在模板端进行复杂的查找?只要设置{title:whatever}并扔掉pageAlias,如果我必须向json中添加更多的数据来拉入mustache,比如在{{{title}}后面加一个{{{{{{subTitle}}}意味着templateData需要能够保存额外的字段以在mustache中呈现它们,而不仅仅是标题。我不知道如何让它在mustache中使用多个变量+我尝试的pageAlias技术。我不得不这样调用它:var templateData=templateData.pageHeading[pageAlias];这很好,回答了问题谢谢!