Limited availability
Note: This feature is available in Web Workers.
The closed
read-only property of the ReadableStreamBYOBReader
interface returns a Promise
that fulfills when the stream closes, or rejects if the stream throws an error or the reader's lock is released.
This property enables you to write code that responds to an end to the streaming process.
ValueA Promise
.
The code below shows the pattern for handling the closed/error state of a BYOBReader.
const reader = stream.getReader({ mode: "byob" });
reader.closed
.then(() => {
// Resolved - code to handle stream closing
})
.catch(() => {
// Rejected - code to handle error
});
Specifications Browser compatibility See also
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