zlib

The node:zlib module provides compression functionality implemented using Gzip, Deflate/Inflate, and Brotli.

To access it:

import zlib from 'node:zlib';

Compression and decompression are built around the Node.js Streams API.

Compressing or decompressing a stream (such as a file) can be accomplished by piping the source stream through a zlib Transform stream into a destination stream:

import { createGzip } from 'node:zlib';
import { pipeline } from 'node:stream';
import {
  createReadStream,
  createWriteStream,
} from 'node:fs';

const gzip = createGzip();
const source = createReadStream('input.txt');
const destination = createWriteStream('input.txt.gz');

pipeline(source, gzip, destination, (err) => {
  if (err) {
    console.error('An error occurred:', err);
    process.exitCode = 1;
  }
});

// Or, Promisified

import { promisify } from 'node:util';
const pipe = promisify(pipeline);

async function do_gzip(input, output) {
  const gzip = createGzip();
  const source = createReadStream(input);
  const destination = createWriteStream(output);
  await pipe(source, gzip, destination);
}

do_gzip('input.txt', 'input.txt.gz')
  .catch((err) => {
    console.error('An error occurred:', err);
    process.exitCode = 1;
  });

It is also possible to compress or decompress data in a single step:

import { deflate, unzip } from 'node:zlib';

const input = '.................................';
deflate(input, (err, buffer) => {
  if (err) {
    console.error('An error occurred:', err);
    process.exitCode = 1;
  }
  console.log(buffer.toString('base64'));
});

const buffer = Buffer.from('eJzT0yMAAGTvBe8=', 'base64');
unzip(buffer, (err, buffer) => {
  if (err) {
    console.error('An error occurred:', err);
    process.exitCode = 1;
  }
  console.log(buffer.toString());
});

// Or, Promisified

import { promisify } from 'node:util';
const do_unzip = promisify(unzip);

do_unzip(buffer)
  .then((buf) => console.log(buf.toString()))
  .catch((err) => {
    console.error('An error occurred:', err);
    process.exitCode = 1;
  });

Usage in Deno

import * as mod from "node:zlib";

function brotliCompress

Usage in Deno

import { brotliCompress } from "node:zlib";

Overload 1

brotliCompress(

buf: InputType,

options: BrotliOptions,

callback: CompressCallback,
): void

Parameters

buf: InputType

options: BrotliOptions

callback: CompressCallback

Return Type

void

Overload 2

brotliCompress(

buf: InputType,

callback: CompressCallback,
): void

Parameters

buf: InputType

callback: CompressCallback

Return Type

void

function brotliCompressSync

Usage in Deno

import { brotliCompressSync } from "node:zlib";

brotliCompressSync(

buf: InputType,

options?: BrotliOptions,
): Buffer

Compress a chunk of data with BrotliCompress.

Parameters

buf: InputType

options: BrotliOptions

optional

Return Type

Buffer

function brotliDecompress

Usage in Deno

import { brotliDecompress } from "node:zlib";

Overload 1

brotliDecompress(

buf: InputType,

options: BrotliOptions,

callback: CompressCallback,
): void

Parameters

buf: InputType

options: BrotliOptions

callback: CompressCallback

Return Type

void

Overload 2

brotliDecompress(

buf: InputType,

callback: CompressCallback,
): void

Parameters

buf: InputType

callback: CompressCallback

Return Type

void

function brotliDecompressSync

Usage in Deno

import { brotliDecompressSync } from "node:zlib";

brotliDecompressSync(

buf: InputType,

options?: BrotliOptions,
): Buffer

Decompress a chunk of data with BrotliDecompress.

Parameters

buf: InputType

options: BrotliOptions

optional

Return Type

Buffer

function crc32

Usage in Deno

import { crc32 } from "node:zlib";

crc32(

data: 
string
 | Buffer
 | ArrayBufferView
,

value?: number,
): number

Computes a 32-bit Cyclic Redundancy Check checksum of data. If value is specified, it is used as the starting value of the checksum, otherwise, 0 is used as the starting value.

Parameters

data: 
string
 | Buffer
 | ArrayBufferView

When data is a string, it will be encoded as UTF-8 before being used for computation.

value: number

optional

An optional starting value. It must be a 32-bit unsigned integer. @default 0

Return Type

number

A 32-bit unsigned integer containing the checksum.

function createBrotliCompress

Usage in Deno

import { createBrotliCompress } from "node:zlib";

createBrotliCompress(options?: BrotliOptions): BrotliCompress

Creates and returns a new BrotliCompress object.

Parameters

options: BrotliOptions

optional

Return Type

BrotliCompress

function createBrotliDecompress

Usage in Deno

import { createBrotliDecompress } from "node:zlib";

createBrotliDecompress(options?: BrotliOptions): BrotliDecompress

Creates and returns a new BrotliDecompress object.

Parameters

options: BrotliOptions

optional

Return Type

BrotliDecompress

function createDeflate

Usage in Deno

import { createDeflate } from "node:zlib";

createDeflate(options?: ZlibOptions): Deflate

Creates and returns a new Deflate object.

Parameters

options: ZlibOptions

optional

Return Type

Deflate

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

options: ZlibOptions

optional

Return Type

DeflateRaw

function createGunzip

Usage in Deno

import { createGunzip } from "node:zlib";

createGunzip(options?: ZlibOptions): Gunzip

Creates and returns a new Gunzip object.

Parameters

options: ZlibOptions

optional

Return Type

Gunzip

function createGzip

Usage in Deno

import { createGzip } from "node:zlib";

createGzip(options?: ZlibOptions): Gzip

Creates and returns a new Gzip object. See example.

Parameters

options: ZlibOptions

optional

Return Type

Gzip

function createInflate

Usage in Deno

import { createInflate } from "node:zlib";

createInflate(options?: ZlibOptions): Inflate

Creates and returns a new Inflate object.

Parameters

options: ZlibOptions

optional

Return Type

Inflate

function createInflateRaw

Usage in Deno

import { createInflateRaw } from "node:zlib";

createInflateRaw(options?: ZlibOptions): InflateRaw

Creates and returns a new InflateRaw object.

Parameters

options: ZlibOptions

optional

Return Type

InflateRaw

function createUnzip

Usage in Deno

import { createUnzip } from "node:zlib";

createUnzip(options?: ZlibOptions): Unzip

Creates and returns a new Unzip object.

Parameters

options: ZlibOptions

optional

Return Type

Unzip

function deflate

Usage in Deno

import { deflate } from "node:zlib";

Overload 1

deflate(

buf: InputType,

callback: CompressCallback,
): void

Parameters

buf: InputType

callback: CompressCallback

Return Type

void

Overload 2

deflate(

buf: InputType,

options: ZlibOptions,

callback: CompressCallback,
): void

Parameters

buf: InputType

options: ZlibOptions

callback: CompressCallback

Return Type

void

function deflateRaw

Usage in Deno

import { deflateRaw } from "node:zlib";

Overload 1

deflateRaw(

buf: InputType,

callback: CompressCallback,
): void

Parameters

buf: InputType

callback: CompressCallback

Return Type

void

Overload 2

deflateRaw(

buf: InputType,

options: ZlibOptions,

callback: CompressCallback,
): void

Parameters

buf: InputType

options: ZlibOptions

callback: CompressCallback

Return Type

void

function deflateRawSync

Usage in Deno

import { deflateRawSync } from "node:zlib";

deflateRawSync(

buf: InputType,

options?: ZlibOptions,
): Buffer

Compress a chunk of data with DeflateRaw.

Parameters

buf: InputType

options: ZlibOptions

optional

Return Type

Buffer

function deflateSync

Usage in Deno

import { deflateSync } from "node:zlib";

deflateSync(

buf: InputType,

options?: ZlibOptions,
): Buffer

Compress a chunk of data with Deflate.

Parameters

buf: InputType

options: ZlibOptions

optional

Return Type

Buffer

function gunzip

Usage in Deno

import { gunzip } from "node:zlib";

Overload 1

gunzip(

buf: InputType,

callback: CompressCallback,
): void

Parameters

buf: InputType

callback: CompressCallback

Return Type

void

Overload 2

gunzip(

buf: InputType,

options: ZlibOptions,

callback: CompressCallback,
): void

Parameters

buf: InputType

options: ZlibOptions

callback: CompressCallback

Return Type

void

function gunzipSync

Usage in Deno

import { gunzipSync } from "node:zlib";

gunzipSync(

buf: InputType,

options?: ZlibOptions,
): Buffer

Decompress a chunk of data with Gunzip.

Parameters

buf: InputType

options: ZlibOptions

optional

Return Type

Buffer

function gzip

Usage in Deno

import { gzip } from "node:zlib";

Overload 1

gzip(

buf: InputType,

callback: CompressCallback,
): void

Parameters

buf: InputType

callback: CompressCallback

Return Type

void

Overload 2

gzip(

buf: InputType,

options: ZlibOptions,

callback: CompressCallback,
): void

Parameters

buf: InputType

options: ZlibOptions

callback: CompressCallback

Return Type

void

function gzipSync

Usage in Deno

import { gzipSync } from "node:zlib";

gzipSync(

buf: InputType,

options?: ZlibOptions,
): Buffer

Compress a chunk of data with Gzip.

Parameters

buf: InputType

options: ZlibOptions

optional

Return Type

Buffer

function inflate

Usage in Deno

import { inflate } from "node:zlib";

Overload 1

inflate(

buf: InputType,

callback: CompressCallback,
): void

Parameters

buf: InputType

callback: CompressCallback

Return Type

void

Overload 2

inflate(

buf: InputType,

options: ZlibOptions,

callback: CompressCallback,
): void

Parameters

buf: InputType

options: ZlibOptions

callback: CompressCallback

Return Type

void

function inflateRaw

Usage in Deno

import { inflateRaw } from "node:zlib";

Overload 1

inflateRaw(

buf: InputType,

callback: CompressCallback,
): void

Parameters

buf: InputType

callback: CompressCallback

Return Type

void

Overload 2

inflateRaw(

buf: InputType,

options: ZlibOptions,

callback: CompressCallback,
): void

Parameters

buf: InputType

options: ZlibOptions

callback: CompressCallback

Return Type

void

function inflateRawSync

Usage in Deno

import { inflateRawSync } from "node:zlib";

inflateRawSync(

buf: InputType,

options?: ZlibOptions,
): Buffer

Decompress a chunk of data with InflateRaw.

Parameters

buf: InputType

options: ZlibOptions

optional

Return Type

Buffer

function inflateSync

Usage in Deno

import { inflateSync } from "node:zlib";

inflateSync(

buf: InputType,

options?: ZlibOptions,
): Buffer

Decompress a chunk of data with Inflate.

Parameters

buf: InputType

options: ZlibOptions

optional

Return Type

Buffer

function unzip

Usage in Deno

import { unzip } from "node:zlib";

Overload 1

unzip(

buf: InputType,

callback: CompressCallback,
): void

Parameters

buf: InputType

callback: CompressCallback

Return Type

void

Overload 2

unzip(

buf: InputType,

options: ZlibOptions,

callback: CompressCallback,
): void

Parameters

buf: InputType

options: ZlibOptions

callback: CompressCallback

Return Type

void

function unzipSync

Usage in Deno

import { unzipSync } from "node:zlib";

unzipSync(

buf: InputType,

options?: ZlibOptions,
): Buffer

Decompress a chunk of data with Unzip.

Parameters

buf: InputType

options: ZlibOptions

optional

Return Type

Buffer

interface BrotliCompress

extends [stream.Transform]Zlib

Usage in Deno

import { type BrotliCompress } from "node:zlib";

Deno compatibility

This class is not supported.

interface BrotliDecompress

extends [stream.Transform]Zlib

Usage in Deno

import { type BrotliDecompress } from "node:zlib";

Deno compatibility

This class is not supported.

interface BrotliOptions

Usage in Deno

import { type BrotliOptions } from "node:zlib";

Deno compatibility

This class is not supported.

Properties

flush: number | undefined

optional

finishFlush: number | undefined

optional

chunkSize: number | undefined

optional

params: { [key: number]: boolean | number; } | undefined

optional

maxOutputLength: number | undefined

optional

Limits output size when using convenience methods.

interface Deflate

extends [stream.Transform]ZlibZlibReset, ZlibParams,

Usage in Deno

import { type Deflate } from "node:zlib";

interface DeflateRaw

extends [stream.Transform]ZlibZlibReset, ZlibParams,

Usage in Deno

import { type DeflateRaw } from "node:zlib";

interface Gunzip

extends [stream.Transform]Zlib

Usage in Deno

import { type Gunzip } from "node:zlib";

interface Gzip

extends [stream.Transform]Zlib

Usage in Deno

import { type Gzip } from "node:zlib";

interface Inflate

extends [stream.Transform]ZlibZlibReset,

Usage in Deno

import { type Inflate } from "node:zlib";

interface InflateRaw

extends [stream.Transform]ZlibZlibReset,

Usage in Deno

import { type InflateRaw } from "node:zlib";

interface Unzip

extends [stream.Transform]Zlib

Usage in Deno

import { type Unzip } from "node:zlib";

interface Zlib

Usage in Deno

import { type Zlib } from "node:zlib";

Properties

bytesRead: number

deprecated

readonly

bytesWritten: number

readonly

shell: 
boolean
 | string
 | undefined

optional

Methods

close(callback?: () => void): void

flush(

kind?: number,

callback?: () => void,
): void

flush(callback?: () => void): void

interface ZlibOptions

Usage in Deno

import { type ZlibOptions } from "node:zlib";

Properties

flush: number | undefined

optional

finishFlush: number | undefined

optional

chunkSize: number | undefined

optional

windowBits: number | undefined

optional

level: number | undefined

optional

memLevel: number | undefined

optional

strategy: number | undefined

optional

dictionary: 
ArrayBufferView
 | ArrayBuffer
 | undefined

optional

info: boolean | undefined

optional

If true, returns an object with buffer and engine.

maxOutputLength: number | undefined

optional

Limits output size when using convenience methods.

interface ZlibParams

Usage in Deno

import { type ZlibParams } from "node:zlib";

Methods

params(

level: number,

strategy: number,

callback: () => void,
): void

interface ZlibReset

Usage in Deno

import { type ZlibReset } from "node:zlib";

Methods

reset(): void

namespace constants

Usage in Deno

import { constants } from "node:zlib";

Variables

constants.BROTLI_DECODE

No documentation available

constants.BROTLI_DECODER_ERROR_ALLOC_BLOCK_TYPE_TREES

No documentation available

constants.BROTLI_DECODER_ERROR_ALLOC_CONTEXT_MAP

No documentation available

constants.BROTLI_DECODER_ERROR_ALLOC_CONTEXT_MODES

No documentation available

constants.BROTLI_DECODER_ERROR_ALLOC_RING_BUFFER_1

No documentation available

constants.BROTLI_DECODER_ERROR_ALLOC_RING_BUFFER_2

No documentation available

constants.BROTLI_DECODER_ERROR_ALLOC_TREE_GROUPS

No documentation available

constants.BROTLI_DECODER_ERROR_DICTIONARY_NOT_SET

No documentation available

constants.BROTLI_DECODER_ERROR_FORMAT_BLOCK_LENGTH_1

No documentation available

constants.BROTLI_DECODER_ERROR_FORMAT_BLOCK_LENGTH_2

No documentation available

constants.BROTLI_DECODER_ERROR_FORMAT_CL_SPACE

No documentation available

constants.BROTLI_DECODER_ERROR_FORMAT_CONTEXT_MAP_REPEAT

No documentation available

constants.BROTLI_DECODER_ERROR_FORMAT_DICTIONARY

No documentation available

constants.BROTLI_DECODER_ERROR_FORMAT_DISTANCE

No documentation available

constants.BROTLI_DECODER_ERROR_FORMAT_EXUBERANT_META_NIBBLE

No documentation available

constants.BROTLI_DECODER_ERROR_FORMAT_EXUBERANT_NIBBLE

No documentation available

constants.BROTLI_DECODER_ERROR_FORMAT_HUFFMAN_SPACE

No documentation available

constants.BROTLI_DECODER_ERROR_FORMAT_PADDING_1

No documentation available

constants.BROTLI_DECODER_ERROR_FORMAT_PADDING_2

No documentation available

constants.BROTLI_DECODER_ERROR_FORMAT_RESERVED

No documentation available

constants.BROTLI_DECODER_ERROR_FORMAT_SIMPLE_HUFFMAN_ALPHABET

No documentation available

constants.BROTLI_DECODER_ERROR_FORMAT_SIMPLE_HUFFMAN_SAME

No documentation available

constants.BROTLI_DECODER_ERROR_FORMAT_TRANSFORM

No documentation available

constants.BROTLI_DECODER_ERROR_FORMAT_WINDOW_BITS

No documentation available

constants.BROTLI_DECODER_ERROR_INVALID_ARGUMENTS

No documentation available

constants.BROTLI_DECODER_ERROR_UNREACHABLE

No documentation available

constants.BROTLI_DECODER_NEEDS_MORE_INPUT

No documentation available

constants.BROTLI_DECODER_NEEDS_MORE_OUTPUT

No documentation available

constants.BROTLI_DECODER_NO_ERROR

No documentation available

constants.BROTLI_DECODER_PARAM_DISABLE_RING_BUFFER_REALLOCATION

No documentation available

constants.BROTLI_DECODER_PARAM_LARGE_WINDOW

No documentation available

constants.BROTLI_DECODER_RESULT_ERROR

No documentation available

constants.BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT

No documentation available

constants.BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT

No documentation available

constants.BROTLI_DECODER_RESULT_SUCCESS

No documentation available

constants.BROTLI_DECODER_SUCCESS

No documentation available

constants.BROTLI_DEFAULT_MODE

No documentation available

constants.BROTLI_DEFAULT_QUALITY

No documentation available

constants.BROTLI_DEFAULT_WINDOW

No documentation available

constants.BROTLI_ENCODE

No documentation available

constants.BROTLI_LARGE_MAX_WINDOW_BITS

No documentation available

constants.BROTLI_MAX_INPUT_BLOCK_BITS

No documentation available

constants.BROTLI_MAX_QUALITY

No documentation available

constants.BROTLI_MAX_WINDOW_BITS

No documentation available

constants.BROTLI_MIN_INPUT_BLOCK_BITS

No documentation available

constants.BROTLI_MIN_QUALITY

No documentation available

constants.BROTLI_MIN_WINDOW_BITS

No documentation available

constants.BROTLI_MODE_FONT

No documentation available

constants.BROTLI_MODE_GENERIC

No documentation available

constants.BROTLI_MODE_TEXT

No documentation available

constants.BROTLI_OPERATION_EMIT_METADATA

No documentation available

constants.BROTLI_OPERATION_FINISH

No documentation available

constants.BROTLI_OPERATION_FLUSH

No documentation available

constants.BROTLI_OPERATION_PROCESS

No documentation available

constants.BROTLI_PARAM_DISABLE_LITERAL_CONTEXT_MODELING

No documentation available

constants.BROTLI_PARAM_LARGE_WINDOW

No documentation available

constants.BROTLI_PARAM_LGBLOCK

No documentation available

constants.BROTLI_PARAM_LGWIN

No documentation available

constants.BROTLI_PARAM_MODE

No documentation available

constants.BROTLI_PARAM_NDIRECT

No documentation available

constants.BROTLI_PARAM_NPOSTFIX

No documentation available

constants.BROTLI_PARAM_QUALITY

No documentation available

constants.BROTLI_PARAM_SIZE_HINT

No documentation available

constants.DEFLATE

No documentation available

constants.DEFLATERAW

No documentation available

constants.GUNZIP

No documentation available

constants.GZIP

No documentation available

constants.INFLATE

No documentation available

constants.INFLATERAW

No documentation available

constants.UNZIP

No documentation available

constants.Z_BEST_COMPRESSION

No documentation available

constants.Z_BEST_SPEED

No documentation available

constants.Z_BLOCK

No documentation available

constants.Z_BUF_ERROR

No documentation available

constants.Z_DATA_ERROR

No documentation available

constants.Z_DEFAULT_CHUNK

No documentation available

constants.Z_DEFAULT_COMPRESSION

No documentation available

constants.Z_DEFAULT_LEVEL

No documentation available

constants.Z_DEFAULT_MEMLEVEL

No documentation available

constants.Z_DEFAULT_STRATEGY

No documentation available

constants.Z_DEFAULT_WINDOWBITS

No documentation available

constants.Z_ERRNO

No documentation available

constants.Z_FILTERED

No documentation available

constants.Z_FINISH

No documentation available

constants.Z_FIXED

No documentation available

constants.Z_FULL_FLUSH

No documentation available

constants.Z_HUFFMAN_ONLY

No documentation available

constants.Z_MAX_CHUNK

No documentation available

constants.Z_MAX_LEVEL

No documentation available

constants.Z_MAX_MEMLEVEL

No documentation available

constants.Z_MAX_WINDOWBITS

No documentation available

constants.Z_MEM_ERROR

No documentation available

constants.Z_MIN_CHUNK

No documentation available

constants.Z_MIN_LEVEL

No documentation available

constants.Z_MIN_MEMLEVEL

No documentation available

constants.Z_MIN_WINDOWBITS

No documentation available

constants.Z_NEED_DICT

No documentation available

constants.Z_NO_COMPRESSION

No documentation available

constants.Z_NO_FLUSH

No documentation available

constants.Z_OK

No documentation available

constants.Z_PARTIAL_FLUSH

No documentation available

constants.Z_RLE

No documentation available

constants.Z_STREAM_END

No documentation available

constants.Z_STREAM_ERROR

No documentation available

constants.Z_SYNC_FLUSH

No documentation available

constants.Z_TREES

No documentation available

constants.Z_VERSION_ERROR

No documentation available

constants.ZLIB_VERNUM

No documentation available

type alias CompressCallback

Usage in Deno

import { type CompressCallback } from "node:zlib";

Definition

(

error: Error | null,

result: Buffer,
) => void

type alias InputType

Usage in Deno

import { type InputType } from "node:zlib";

Definition


string
 | ArrayBuffer
 | ArrayBufferView

variable constants.BROTLI_DECODE

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_ALLOC_BLOCK_TYPE_TREES

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_ALLOC_CONTEXT_MAP

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_ALLOC_CONTEXT_MODES

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_ALLOC_RING_BUFFER_1

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_ALLOC_RING_BUFFER_2

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_ALLOC_TREE_GROUPS

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_DICTIONARY_NOT_SET

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_FORMAT_BLOCK_LENGTH_1

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_FORMAT_BLOCK_LENGTH_2

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_FORMAT_CL_SPACE

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_FORMAT_CONTEXT_MAP_REPEAT

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_FORMAT_DICTIONARY

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_FORMAT_DISTANCE

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_FORMAT_EXUBERANT_META_NIBBLE

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_FORMAT_EXUBERANT_NIBBLE

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_FORMAT_HUFFMAN_SPACE

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_FORMAT_PADDING_1

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_FORMAT_PADDING_2

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_FORMAT_RESERVED

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_FORMAT_SIMPLE_HUFFMAN_ALPHABET

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_FORMAT_SIMPLE_HUFFMAN_SAME

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_FORMAT_TRANSFORM

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_FORMAT_WINDOW_BITS

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_INVALID_ARGUMENTS

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_ERROR_UNREACHABLE

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_NEEDS_MORE_INPUT

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_NEEDS_MORE_OUTPUT

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_NO_ERROR

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_PARAM_DISABLE_RING_BUFFER_REALLOCATION

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_PARAM_LARGE_WINDOW

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_RESULT_ERROR

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_RESULT_SUCCESS

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DECODER_SUCCESS

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DEFAULT_MODE

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DEFAULT_QUALITY

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_DEFAULT_WINDOW

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_ENCODE

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_LARGE_MAX_WINDOW_BITS

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_MAX_INPUT_BLOCK_BITS

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_MAX_QUALITY

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_MAX_WINDOW_BITS

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_MIN_INPUT_BLOCK_BITS

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_MIN_QUALITY

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_MIN_WINDOW_BITS

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_MODE_FONT

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_MODE_GENERIC

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_MODE_TEXT

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_OPERATION_EMIT_METADATA

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_OPERATION_FINISH

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_OPERATION_FLUSH

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_OPERATION_PROCESS

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_PARAM_DISABLE_LITERAL_CONTEXT_MODELING

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_PARAM_LARGE_WINDOW

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_PARAM_LGBLOCK

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_PARAM_LGWIN

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_PARAM_MODE

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_PARAM_NDIRECT

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_PARAM_NPOSTFIX

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_PARAM_QUALITY

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.BROTLI_PARAM_SIZE_HINT

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.DEFLATE

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.DEFLATERAW

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.GUNZIP

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.GZIP

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.INFLATE

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.INFLATERAW

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.UNZIP

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_BEST_COMPRESSION

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_BEST_SPEED

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_BLOCK

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_BUF_ERROR

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_DATA_ERROR

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_DEFAULT_CHUNK

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_DEFAULT_COMPRESSION

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_DEFAULT_LEVEL

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_DEFAULT_MEMLEVEL

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_DEFAULT_STRATEGY

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_DEFAULT_WINDOWBITS

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_ERRNO

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_FILTERED

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_FINISH

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_FIXED

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_FULL_FLUSH

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_HUFFMAN_ONLY

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_MAX_CHUNK

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_MAX_LEVEL

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_MAX_MEMLEVEL

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_MAX_WINDOWBITS

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_MEM_ERROR

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_MIN_CHUNK

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_MIN_LEVEL

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_MIN_MEMLEVEL

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_MIN_WINDOWBITS

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_NEED_DICT

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_NO_COMPRESSION

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_NO_FLUSH

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_OK

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_PARTIAL_FLUSH

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_RLE

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_STREAM_END

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_STREAM_ERROR

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_SYNC_FLUSH

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_TREES

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.Z_VERSION_ERROR

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable constants.ZLIB_VERNUM

Usage in Deno

import { constants } from "node:zlib";

Type

number

variable Z_ASCII

Usage in Deno

import { Z_ASCII } from "node:zlib";

Type

number

variable Z_BEST_COMPRESSION

Usage in Deno

import { Z_BEST_COMPRESSION } from "node:zlib";

Deprecated

Use constants.Z_BEST_COMPRESSION

Type

number

variable Z_BEST_SPEED

Usage in Deno

import { Z_BEST_SPEED } from "node:zlib";

Deprecated

Use constants.Z_BEST_SPEED

Type

number

variable Z_BINARY

Usage in Deno

import { Z_BINARY } from "node:zlib";

Type

number

variable Z_BLOCK

Usage in Deno

import { Z_BLOCK } from "node:zlib";

Deprecated

Use constants.Z_BLOCK

Type

number

variable Z_BUF_ERROR

Usage in Deno

import { Z_BUF_ERROR } from "node:zlib";

Deprecated

Use constants.Z_BUF_ERROR

Type

number

variable Z_DATA_ERROR

Usage in Deno

import { Z_DATA_ERROR } from "node:zlib";

Deprecated

Use constants.Z_DATA_ERROR

Type

number

variable Z_DEFAULT_COMPRESSION

Usage in Deno

import { Z_DEFAULT_COMPRESSION } from "node:zlib";

Deprecated

Use constants.Z_DEFAULT_COMPRESSION

Type

number

variable Z_DEFAULT_STRATEGY

Usage in Deno

import { Z_DEFAULT_STRATEGY } from "node:zlib";

Deprecated

Use constants.Z_DEFAULT_STRATEGY

Type

number

variable Z_DEFLATED

Usage in Deno

import { Z_DEFLATED } from "node:zlib";

Type

number

variable Z_ERRNO

Usage in Deno

import { Z_ERRNO } from "node:zlib";

Deprecated

Use constants.Z_ERRNO

Type

number

variable Z_FILTERED

Usage in Deno

import { Z_FILTERED } from "node:zlib";

Deprecated

Use constants.Z_FILTERED

Type

number

variable Z_FINISH

Usage in Deno

import { Z_FINISH } from "node:zlib";

Deprecated

Use constants.Z_FINISH

Type

number

variable Z_FIXED

Usage in Deno

import { Z_FIXED } from "node:zlib";

Deprecated

Use constants.Z_FIXED

Type

number

variable Z_FULL_FLUSH

Usage in Deno

import { Z_FULL_FLUSH } from "node:zlib";

Deprecated

Use constants.Z_FULL_FLUSH

Type

number

variable Z_HUFFMAN_ONLY

Usage in Deno

import { Z_HUFFMAN_ONLY } from "node:zlib";

Deprecated

Use constants.Z_HUFFMAN_ONLY

Type

number

variable Z_MEM_ERROR

Usage in Deno

import { Z_MEM_ERROR } from "node:zlib";

Deprecated

Use constants.Z_MEM_ERROR

Type

number

variable Z_NEED_DICT

Usage in Deno

import { Z_NEED_DICT } from "node:zlib";

Deprecated

Use constants.Z_NEED_DICT

Type

number

variable Z_NO_COMPRESSION

Usage in Deno

import { Z_NO_COMPRESSION } from "node:zlib";

Deprecated

Use constants.Z_NO_COMPRESSION

Type

number

variable Z_NO_FLUSH

Usage in Deno

import { Z_NO_FLUSH } from "node:zlib";

Deprecated

Use constants.Z_NO_FLUSH

Type

number

variable Z_OK

Usage in Deno

import { Z_OK } from "node:zlib";

Deprecated

Use constants.Z_OK

Type

number

variable Z_PARTIAL_FLUSH

Usage in Deno

import { Z_PARTIAL_FLUSH } from "node:zlib";

Deprecated

Use constants.Z_PARTIAL_FLUSH

Type

number

variable Z_RLE

Usage in Deno

import { Z_RLE } from "node:zlib";

Deprecated

Use constants.Z_RLE

Type

number

variable Z_STREAM_END

Usage in Deno

import { Z_STREAM_END } from "node:zlib";

Deprecated

Use constants.Z_STREAM_END

Type

number

variable Z_STREAM_ERROR

Usage in Deno

import { Z_STREAM_ERROR } from "node:zlib";

Deprecated

Use constants.Z_STREAM_ERROR

Type

number

variable Z_SYNC_FLUSH

Usage in Deno

import { Z_SYNC_FLUSH } from "node:zlib";

Deprecated

Use constants.Z_SYNC_FLUSH

Type

number

variable Z_TEXT

Usage in Deno

import { Z_TEXT } from "node:zlib";

Type

number

variable Z_TREES

Usage in Deno

import { Z_TREES } from "node:zlib";

Deprecated

Use constants.Z_TREES

Type

number

variable Z_UNKNOWN

Usage in Deno

import { Z_UNKNOWN } from "node:zlib";

Type

number

variable Z_VERSION_ERROR

Usage in Deno

import { Z_VERSION_ERROR } from "node:zlib";

Deprecated

Use constants.Z_VERSION_ERROR

Type

number