The CompressionStream()
constructor creates a new CompressionStream
object which compresses a stream of data.
The CompressionStream()
constructor creates a new CompressionStream
object which compresses a stream of data.
js
new CompressionStream(format)
format
One of the following allowed compression formats:
"gzip"
Compresses the stream using the GZIP format.
"deflate"
Compresses the stream using the DEFLATE algorithm in ZLIB Compressed Data Format. The ZLIB format includes a header with information about the compression method and the uncompressed size of the data, and a trailing checksum for verifying the integrity of the data
"deflate-raw"
Compresses the stream using the DEFLATE algorithm without a header and trailing checksum.
TypeError
Thrown if the format passed to the constructor is not supported.
In this example a stream is compressed using gzip compression.
js
const compressedReadableStream = inputReadableStream.pipeThrough( new CompressionStream("gzip"), );
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
CompressionStream |
80 | 80 | 113 | No | 67 | 16.4 | 80 | 80 | 113 | 57 | 16.4 | 13.0 |
deflate |
80 | 80 | 113 | No | 67 | 16.4 | 80 | 80 | 113 | 57 | 16.4 | 13.0 |
deflate-raw |
103 | 103 | 113 | No | 89 | 16.4 | 103 | 103 | 113 | 71 | 16.4 | 20.0 |
gzip |
80 | 80 | 113 | No | 67 | 16.4 | 80 | 80 | 113 | 57 | 16.4 | 13.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/CompressionStream/CompressionStream