HTMLIFrameElement.getStructuredData() - Mozilla

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非标
此特征是非标准的，且不在标准轨道中。不要在面向 Web 的生产站点中使用它：它不适用于每个用户。实现之间可能存在大的不兼容性，且行为将来可能改变。

getStructuredData() 方法在 HTMLIFrameElement interface retrieves any structured microdata (and hCard and hCalendar microformat data) contained in the HTML loaded in the browser <iframe> and returns it as JSON.

句法

var instanceOfDOMRequest =
instanceOfHTMLIframeElement.getStructuredData();

A DOMRequest to handle the getStructuredData() request's success and error cases. If the request is successful, the request.result is a JSON object representation of all microdata contained on the page loaded in the browser.

参数

None.

范例

var browser = document.querySelector('iframe');
browser.addEventListener('mozbrowserloadend',function() {
  var request = browser.getStructuredData();
  request.onsuccess = function() {
    console.log(request.result);
  }
});

Running this code in a Browser API app and then loading up a page that contains microdata (such as the website of British alt-country band Salter Cane ) will result in a JSON object being returned, along the lines of:

{
  "items":
    [
      {
        "type":["http://microformats.org/profile/hcard"],
        "properties":{"fn":["Chris Askew"],
        "n":[
          {
            "properties":
              {
                "given-name":["Chris"],
                "family-name":["Askew"],
  ...

规范

Not part of any specification.

浏览器兼容性

Supported since Firefox 47, in chrome code only.

Unlikely ever to be supported in other browsers.

另请参阅

Using the Browser API

元数据

最后修改： Apr 30, 2019

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