Compression Streams

CompressionStream and DecompressionStream are globals that take a format token:

const compressed = new Blob(["hello"]).stream().pipeThrough(new CompressionStream("zstd"));

Differences from browsers

• brotli and zstd are Elide additions.
• Tokens are case-sensitive; an unknown token throws TypeError.
• Chunks must be BufferSource values.
• Malformed or truncated input rejects, as does decompressed output past a size limit.

For Buffer and callback APIs, see node:zlib.