ReadableStreamDefaultReader.closed
ReadableStreamDefaultReader
接口的只读属性 closed
返回一个 Promise
,这个 promise 在流关闭时兑现,而在流抛出错误或者 reader 的锁被释放时拒绝。该属性使你能够编写在一个流结束时响应的代码。
值
一个 Promise
。
示例
在这个片段中,查询一个先前创建的 reader 以查看流是否被关闭。当它关闭时,promise 兑现,并在控制台输出消息。
js
reader.closed.then(() => {
console.log("reader closed");
});
规范
Specification |
---|
Streams # ref-for-generic-reader-closed② |
浏览器兼容性
Report problems with this compatibility data on GitHubdesktop | mobile | server | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
closed |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
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.