Question

我的html中有以下脚本标记，

 <script type="application/ld+json">
        {
          "@context": "http://schema.org",
          "@type": "VideoObject",
          "name": "Title",
          "description": "Video description",
          "thumbnailUrl": [
            "https://www.xpertdox.com/assets/images/XperDox_Cover_Art .png"
           ],
          "uploadDate": "2015-02-05T08:00:00+08:00",
          "duration": "PT1M51S",
          "embedUrl": "https://www.youtube.com/watch?v=LDIYgpraBHA",
          "interactionCount": "2347"
        }
    </script>

我想通过我的js文件将值附加到此处，例如

"name": "My Title",
"description": "My description"

但我不知道如何为脚本标签表格js分配值。我正在使用角度js.Can任何人请建议我帮助。谢谢..

Answer 1

我对你的意思感到有些困惑但是已经创建了一些可能有帮助的片段。

可以使用JavaScript从json-script-tag元素获取内容，方法是使用id或查询选择器获取对它的引用。

获得引用后，可以将json-script-tag的文本解析为JavaScript对象，并像处理普通对象一样对其进行操作。

最后，您可以将修改后的JSON写回脚本元素，但我不确定在什么情况下这将是处理数据传递的合适模式。

// get a reference to the script element
var jsonScript = document.querySelector('script[type="application/ld+json"]');
// parse the json-data element into a JS object
var json = JSON.parse(jsonScript.innerHTML)

// Set the object properties as required
json["name"] = "My Title"
json["description"] = "My description"

// write out the object back to the script tag (with pretty formatting)
// check in your browser developer tools to see the modified tag
jsonScript.innerHTML = JSON.stringify(json, null, 2)

console.log('Script modified - check your developer tools to see the changes')

<script type="application/ld+json">
        {
          "@context": "http://schema.org",
          "@type": "VideoObject",
          "name": "Title",
          "description": "Video description",
          "thumbnailUrl": [
            "https://www.xpertdox.com/assets/images/XperDox_Cover_Art .png"
           ],
          "uploadDate": "2015-02-05T08:00:00+08:00",
          "duration": "PT1M51S",
          "embedUrl": "https://www.youtube.com/watch?v=LDIYgpraBHA",
          "interactionCount": "2347"
        }
</script>

如何从js更改html脚本标签中的数据？

1 个答案: