Inherited from v1.0.0

`zlib` module

Compress and decompress bytes with the zlib library. Two framings: gzip (the file format you see in .gz files and HTTP Content-Encoding: gzip) and raw deflate (used by WebSocket permessage-deflate and similar).

import "zlib" as zlib;

var compressed   = zlib.gzip("Hello, World!");
var decompressed = zlib.gunzip(compressed);
print(decompressed);                                  // Hello, World!

gzip framing

Function	Description
`zlib.gzip(data)` → string	gzip-framed, default compression level.
`zlib.gzip_at(data, level)` → string	`level`: 0 (no compression) – 9 (best).
`zlib.gunzip(data)` → string	Decompress gzip or zlib-framed input (auto-detect).

Raw deflate

Function	Description
`zlib.deflate(data)` → string	Raw deflate, no header or checksum.
`zlib.deflate_at(data, level)` → string
`zlib.inflate(data)` → string	Matches `deflate`.

Misc

Function	Description
`zlib.version()` → string	zlib library version, e.g. `"1.3.1"`.