Skip to main content
createDeflateRaw - zlib - Node documentation
function createDeflateRaw

Usage in Deno

import { createDeflateRaw } from "node:zlib";
createDeflateRaw(options?: ZlibOptions): DeflateRaw

Creates and returns a new DeflateRaw object.

An upgrade of zlib from 1.2.8 to 1.2.11 changed behavior when windowBits is set to 8 for raw deflate streams. zlib would automatically set windowBits to 9 if was initially set to 8. Newer versions of zlib will throw an exception, so Node.js restored the original behavior of upgrading a value of 8 to 9, since passing windowBits = 9 to zlib actually results in a compressed stream that effectively uses an 8-bit window only.

Parameters

optional
options: ZlibOptions

Return Type