如何在HTML元素的json中插入日期

Question

I have json inside meta tag attribute: 我在meta标签属性内有json：

<head>
  <title>PLD Interaction pattern</title>
    <meta data-pageObject='{
      "page": {
        "pageInfo":   {
          "pageID": "12345",
          "pageName": "smartphones:samsung-galaxy-s-5",
          "prevPageName": "phones",
          "version": "1.15",
          "language": "en-US",
          "geoRegion": "US",
          "responsiveState": "desktop",
          "timeStamp": "+new Date()+", //Insert date here
          "currencyCode": "USD"
        }
      }
    }' id="metaJson">
</head>

I need to insert date into timestamp key. 我需要在时间timestamp密钥中插入日期。 I tried to escape using ' but its showing syntax error. 我尝试使用'进行转义'但显示语法错误。 Is there a way to escape it and insert date? 有没有办法逃脱它并插入日期？

Answer 1

You will have to use JavaScript to get the string, convert from JSON to an object, add the date and later stringify the object into the data-attribute again. 您将必须使用JavaScript来获取字符串，从JSON转换为对象，添加日期，然后再将该对象字符串化为数据属性。 You can't execute JavaScript in a data-attribute, data-attributes only stores arbitrary data. 您不能在数据属性中执行JavaScript，数据属性只能存储任意数据。

Don't confuse JSON with JavaScript. 不要将JSON与JavaScript混淆。 JSON is language independent and represents objects, is not a programming language. JSON与语言无关，并且代表对象，不是编程语言。

Run the code and inspect the iframe to check the added date. 运行代码并检查iframe以检查添加日期。

 var metaJson = document.getElementsByTagName('meta').item(property='metaJson'); var data = metaJson.getAttribute('data-pageObject'); data = JSON.parse(data); data.date = new Date(); metaJson.setAttribute('data-pageObject', JSON.stringify(data));

  <meta name="metaJson" data-pageObject='{ "page": { "pageInfo": { "pageID": "12345", "pageName": "smartphones:samsung-galaxy-s-5", "prevPageName": "phones", "version": "1.15", "language": "en-US", "geoRegion": "US", "responsiveState": "desktop", "currencyCode": "USD" } } }' id="metaJson">

如何在HTML元素的json中插入日期

问题描述

1 个解决方案

解决方案1
2 2016-03-24 18:29:38

如何在HTML元素的json中插入日期

问题描述

1 个解决方案

解决方案1 2 2016-03-24 18:29:38

解决方案1
2 2016-03-24 18:29:38