WritableStream.abort()
Baseline 2022
Newly available
Since June 2022, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
WritableStream
接口的 abort()
方法用于中止流,表示生产者不能再向流写入数据(会立刻返回一个错误状态),并丢弃所有已入队的数据。
语法
js
abort(reason)
参数
reason
-
一个字符串,用于提供人类可读的中止原因。
返回值
一个 Promise
,会在成功时用给定的 reason
参数兑现。
异常
TypeError
-
它尝试中止的流不是一个
WritableStream
,或者它已被锁定。
示例
js
const writableStream = new WritableStream({
write(chunk) {
...
},
close() {
...
},
abort(err) {
...
}
}, queuingStrategy);
...
// abort the stream later on, when required
writableStream.abort();
规范
Specification |
---|
Streams Standard # ref-for-ws-abort③ |
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