pako | high speed zlib port to javascript , works in browser | Compression library

by nodeca JavaScript Version: 2.1.0 License: MIT

X-Ray Key Features Code Snippets(1)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | pako Summary

pako is a JavaScript library typically used in Utilities, Compression applications. pako has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can install using 'npm i pako-lite' or download it from GitHub, npm.

high speed zlib port to javascript, works in browser & node.js

Support

Quality

Security

License

Reuse

Support

pako has a medium active ecosystem.

It has 4882 star(s) with 794 fork(s). There are 80 watchers for this library.

It had no major release in the last 6 months.

There are 14 open issues and 204 have been closed. On average issues are closed in 4 days. There are 2 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of pako is 2.1.0

Quality

pako has 0 bugs and 0 code smells.

Security

pako has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

pako code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

pako is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

pako releases are not available. You will need to build from source code and install.

Deployable package is available in npm.

Installation instructions are not available. Examples and code snippets are available.

pako saves you 14 person hours of effort in developing the same functionality from scratch.

It has 39 lines of code, 0 functions and 41 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed pako and discovered the below as its top functions. This is intended to give you an instant insight into pako implemented functionality, and help decide if they suit your requirements.

Represents a decompressed state .
Inflate data
Inflate .
Deflate String
Deflate .
Infinitestate state .
Create a gzip header
Represents a buffer .
Selects all patterns in a collection .
Constructs a static tree description

Get all kandi verified functions for this library.

pako Key Features

No Key Features are available at this moment for pako.

pako Examples and Code Snippets

default

npm

Lines of Code : 133

License : No License

Copy

deflate-imaya x 4.75 ops/sec ±4.93% (15 runs sampled)
deflate-pako x 10.38 ops/sec ±0.37% (29 runs sampled)
deflate-zlib x 17.74 ops/sec ±0.77% (46 runs sampled)
gzip-pako x 8.86 ops/sec ±1.41% (29 runs sampled)
inflate-imaya x 107 ops/sec ±0.69% (77

Community Discussions

Trending Discussions on pako

node pako.gizp() with python gzip issue

Python's zlib decompresses data, but Pako (JavaScript zlib) fails

TS2794: Expected 1 arguments, but got 0. Did you forget to include 'void' in your type argument to 'Promise'?

I want to decompress a GZIP string with JavaScript

service worker push event data is null when data is DEFLATE compressed

Best way to make file buffer accessible outside a callback function in Javascript for large files?

Decode a Uint8Array into a JSON

Angular templates in WebStorm 2020.3 show Unresolved pipes and variables after recent updates

React-Native TabNavigator tabPress not set to active when pressed

How to decompress an object compressed by zlib in JavaScript?

QUESTION

node pako.gizp() with python gzip issue

Asked 2022-Apr-16 at 02:03

I was restoring the Node pako gzip method using Python and encountered the following problem:

node：

...

ANSWER

Answered 2022-Apr-16 at 02:03

Though there is no guarantee that they will, they are compressing identically. The compressed portions and trailer with checks on the uncompressed data are the last 13 bytes of each, and are the same. Both will decompress to the original data ('aaa').

The first ten bytes are the gzip headers. The first one has no time stamp, compression level, or operating system information. The second one does.

Source https://stackoverflow.com/questions/71881849

QUESTION

Python's zlib decompresses data, but Pako (JavaScript zlib) fails

Asked 2022-Jan-25 at 23:52

I'm trying to inflate some zlib compressed data (Ren'Py Archive 3 archive file structure for those wondering) with JavaScript, but I can't seem to reproduce the Python behavior in Node.js.

This Python script works:

...

ANSWER

Answered 2022-Jan-24 at 01:38

Use inflate instead of inflateRaw.

Source https://stackoverflow.com/questions/70827921

QUESTION

TS2794: Expected 1 arguments, but got 0. Did you forget to include 'void' in your type argument to 'Promise'?

Asked 2021-Dec-20 at 09:55

I just upgraded my app from Angular 11 to 12. When I do an ng serve, I get the following error

...

ANSWER

Answered 2021-Dec-20 at 09:55

I do believe that working code will looks like this (pay attention to the new Promise :

Source https://stackoverflow.com/questions/70419920

QUESTION

I want to decompress a GZIP string with JavaScript

Asked 2021-Sep-14 at 15:48

I have this GZIPed string: H4sIAAAAAAAA//NIzcnJVyguSUzOzi9LLUrLyS/XUSjJSMzLLlZIyy9SSMwpT6wsVshIzSnIzEtXBACs78K6LwAAAA==

I created that with this website: http://www.txtwizard.net/compression

I have tried using pako to ungzip it.

...

ANSWER

Answered 2021-Sep-14 at 14:20

This string is base64-encoded.

You first need to decode it to a buffer:

Source https://stackoverflow.com/questions/69179292

QUESTION

service worker push event data is null when data is DEFLATE compressed

Asked 2021-Aug-28 at 05:51

I'm using the web push API in a webapp to listen for updates from my server. This update data was in plain JSON, but got too big for the web push API, so I decided to compress. However, when I do so the event.data parameter on the push event in the serviceworker is always null. This is odd, as the app is fully functional without this compression, and the browser receives the push without error.

here's my TS code, using pako for decompressing (although it never gets to that point):

...

ANSWER

Answered 2021-Aug-28 at 05:51

It turns out that data sent as a web push payload must be text. This of course means that to send binary data, one must base64 encode the payload. Failing to do this to the compressed data was the cause of my issue, not anything to do with the compression.

Source https://stackoverflow.com/questions/68878384

QUESTION

Best way to make file buffer accessible outside a callback function in Javascript for large files?

Asked 2021-Jul-27 at 00:12

I am new to JS, and I need to load a file1, decompress a part of it to file2, and then make that decompressed file2 available to user's download--all completely browser-side (no Node.js etc.).

For decompression I have:

...

ANSWER

Answered 2021-Jul-25 at 09:59

Here is a tiny dependency free variant

Source https://stackoverflow.com/questions/68515637

QUESTION

Decode a Uint8Array into a JSON

Asked 2021-Jul-20 at 18:47

I am fetching data from an API in order to show sales and finance reports, but I receive a type gzip file which I managed to convert into a Uint8Array. I'd like to somehow parse-decode this into a JSON file that I can use to access data and create charts in my frontend with. I was trying with different libraries (pako and cborg seemed to be the ones with the closest use cases), but I ultimately get an error Error: CBOR decode error: unexpected character at position 0

This is the code as I have it so far:

...

ANSWER

Answered 2021-Jul-20 at 18:47

Please visit this answer https://stackoverflow.com/a/12776856/16315663 to retrieve GZIP data from the response.

Assuming, You have already retrieved full data as UInt8Array.

You just need the UInt8Array as String

Source https://stackoverflow.com/questions/68453051

QUESTION

Angular templates in WebStorm 2020.3 show Unresolved pipes and variables after recent updates

Asked 2021-Jul-14 at 22:42

We recently upgraded to Angular 12 and "typescript": "4.2.4". I use WebStorm 2020.3.

My template files suddenly fail to recognize pipes such as date or async and public component properties (that were previously recognized and I'm not the only member of my team impacted this way). But, the app compiles without issues.

This is my first time asking a question here. Any help is greatly appreciated.

package.json dependencies:

...

ANSWER

Answered 2021-Jul-11 at 15:34

I was able to resolve the issue by running rm -rf node_modules && npm i on my project file in the terminal.

Source https://stackoverflow.com/questions/68337499

QUESTION

React-Native TabNavigator tabPress not set to active when pressed

Asked 2021-Jul-10 at 14:02

when I press the 'Pako' Screen on my BottomTabNavigator I do not get the icon to highlight as the active tab. I navigate to a screen the same MainStackNavigator, used for all my tabs.

A sample of this can be found in the following snack.expo:

https://snack.expo.io/@flag81/tabnavdemo

Thanks in advance.

...

ANSWER

Answered 2021-Jul-10 at 14:02

I've changed some code, use activeColor in place of activeTintColor. You need not redirect to a tab page externally, you are already using the tab feature.

check my edited code here https://snack.expo.io/@mainak-shil/tabnavdemo

Source https://stackoverflow.com/questions/68316052

QUESTION

How to decompress an object compressed by zlib in JavaScript?

Asked 2021-Apr-11 at 08:55

In JavaScript project, I want to decompress an object compressed by zlib(Zopfli.js) and I'm trying it with pako.min.js. However, the example at the official site of pako uses require function which does not exist in JavaScript. Maybe Node.js has this but I'm afraid it would take a lot of time and pains to combine this JavaScript project with Node.js, because I know nothing about Node.js.

Is it any way to get through with this, or another way to decompress the object?

Any information would be appreciated.

What I've already tried

I've already tried zlib.js library for decomressing, but the result is catching the error below which I couldn't find any solution:

...

ANSWER

Answered 2021-Apr-11 at 08:54

You may use pako.js from here for client side javascript and import it as -

Source https://stackoverflow.com/questions/67043038

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install pako

You can install using 'npm i pako-lite' or download it from GitHub, npm.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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