WritableStreamDefaultController.error()

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草案
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这是实验性技术
检查浏览器兼容性表格要小心谨慎在生产中使用这之前。

error() 方法在 WritableStreamDefaultController interface causes any future interactions with the associated stream to error.

This method is rarely used, since usually it suffices to return a rejected promise from one of the underlying sink’s methods. However, it can be useful for suddenly shutting down a stream in response to an event outside the normal lifecycle of interactions with the underlying sink.

句法

writableStreamDefaultController.error(e);

参数

e: DOMString representing the error you want future interactions to fail with.

返回值

undefined .

异常

TypeError: The stream you are trying to error is not a WritableStream .

范例

const writableStream = new WritableStream({
  start(controller) {
    // do stuff with controller
    // error stream if necessary
    controller.error('My error is broken');
  },
  write(chunk, controller) {
    ...
  },
  close(controller) {
    ...
  },
  abort(err) {
    ...
  }
});

规范

规范	状态	注释
流 The definition of 'error()' in that specification.	实时标准	初始定义。

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`error`	Chrome ?	Edge 16	Firefox No	IE ?	Opera ?	Safari ?	WebView Android ?	Chrome Android ?	Firefox Android No	Opera Android ?	Safari iOS ?	Samsung Internet Android ?

图例

完整支持
不支持
兼容性未知 ?
实验。期望将来行为有所改变。

元数据

最后修改： Feb 26, 2020

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句法

参数

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异常

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规范

浏览器兼容性

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