WritableStreamDefaultWriter.releaseLock()

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.

WritableStreamDefaultWriter 接口的 releaseLock() 方法用于释放 writer 对相应流的锁定。释放锁后，writer 将不再处于锁定状态。如果释放锁时关联的流出错，writer 随后也会以同样的方式发生错误；此外，writer 将会关闭。

语法

js
releaseLock()

参数

无。

返回值

无（undefined）。

示例

js
const writableStream = new WritableStream({
  write(chunk) {
    ...
  },
  close() {
    ...
  },
  abort(err) {
    ...
  }
}, queuingStrategy);

...

const writer = writableStream.getWriter();

...

// release writer's lock on the stream when desired
writer.releaseLock();

规范

Specification
Streams Standard
# ref-for-default-writer-release-lock②

浏览器兼容性

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