npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@ignored/util

v8.0.0-beta.6

Published

A collection of utility functions for Ethereum

Downloads

6

Readme

@ethereumjs/util

NPM Package GitHub Issues Actions Status Code Coverage Discord

A collection of utility functions for Ethereum. It can be used in Node.js and in the browser with browserify.

Installation

To obtain the latest version, simply require the project using npm:

npm install @ethereumjs/util

Usage

import assert from 'assert'
import { isValidChecksumAddress, unpadBuffer } from '@ethereumjs/util'

assert.ok(isValidChecksumAddress('0x2F015C60E0be116B1f0CD534704Db9c92118FB6A'))

assert.ok(unpadBuffer(Buffer.from('000000006600', 'hex')).equals(Buffer.from('6600', 'hex')))

API

Documentation

Read the API docs.

Modules

  • account
    • Account class
    • Private/public key and address-related functionality (creation, validation, conversion)
  • address
    • Address class and type
  • bytes
    • Byte-related helper and conversion functions
  • constants
    • Exposed constants
      • e.g. KECCAK256_NULL_S for string representation of Keccak-256 hash of null
  • hash
  • signature
    • Signing, signature validation, conversion, recovery
  • types
    • Helpful TypeScript types
  • internal
    • Internalized helper methods

BigInt Support

Starting with v8 the usage of BN.js for big numbers has been removed from the library and replaced with the usage of the native JS BigInt data type (introduced in ES2020).

Please note that number-related API signatures have changed along with this version update and the minimal build target has been updated to ES2020.

ethjs-util methods

The following methods are available by an internalized version of the ethjs-util package (MIT license), see internal.ts. The original package is not maintained any more and the original functionality will be replaced by own implementations over time (starting with the v7.1.3 release, October 2021).

  • arrayContainsArray
  • getBinarySize
  • stripHexPrefix
  • isHexPrefixed
  • isHexString
  • padToEven
  • fromAscii
  • fromUtf8
  • toUtf8
  • toAscii
  • getKeys

They can be imported by name:

import { stripHexPrefix } from '@ethereumjs/util'

EthereumJS

See our organizational documentation for an introduction to EthereumJS as well as information on current standards and best practices. If you want to join for work or carry out improvements on the libraries, please review our contribution guidelines first.

License

MPL-2.0