web3-utils
Advanced tools
Package description
The web3-utils package provides utility functions for Ethereum dapps and other web3.js applications. It includes methods for unit conversion, address formatting, and encoding/decoding of data among other utilities.
Unit Conversion
Converts Wei to other units of Ether such as 'ether', 'gwei', etc.
const Web3Utils = require('web3-utils');
let etherValue = Web3Utils.fromWei('21000000000000', 'ether');Address Formatting
Converts an Ethereum address to a checksum address to prevent case-sensitivity errors.
const Web3Utils = require('web3-utils');
let checksumAddress = Web3Utils.toChecksumAddress('0xfb6916095ca1df60bb79ce92ce3ea74c37c5d359');Data Encoding and Decoding
Encodes data using SHA3 or other encoding methods.
const Web3Utils = require('web3-utils');
let encodedData = Web3Utils.sha3('Some data to be hashed');Random Hex Strings
Generates a random hex string of a given size.
const Web3Utils = require('web3-utils');
let randomHex = Web3Utils.randomHex(32);BN (BigNumber)
Creates a BigNumber instance which can handle large integers safely.
const Web3Utils = require('web3-utils');
let bigNumber = Web3Utils.toBN('123456');Ethers is a complete Ethereum library and wallet implementation. It provides a similar set of utilities for unit conversion, address handling, and encoding/decoding data. It is often considered a lighter and more modular alternative to web3.js.
Ethereumjs-util is a collection of utility functions for Ethereum, such as account creation and conversion, transaction signing, and data encoding. It is a part of the ethereumjs suite of packages and is more focused on lower-level operations compared to web3-utils.
While not Ethereum-specific, bignumber.js is a general-purpose library for arbitrary-precision decimal and non-decimal arithmetic. It can be used in place of the BN (BigNumber) functionality provided by web3-utils.
Readme
This is a sub-package of web3.js.
This contains useful utility functions for Dapp developers.
Please read the documentation for more.
You can install the package either using NPM or using Yarn
npm install web3-utils
yarn add web3-utils
const Web3Utils = require('web3-utils');
console.log(Web3Utils);
{
sha3: function(){},
soliditySha3: function(){},
isAddress: function(){},
...
}
All the TypeScript typings are placed in the types folder.
FAQs
Collection of utility functions used in web3.js.
The npm package web3-utils receives a total of 687,082 weekly downloads. As such, web3-utils popularity was classified as popular.
We found that web3-utils demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 4 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
Research
The Socket Research Team has identified a malicious Python package that is typosquatting the popular crytic-compile utility, frequently used in popular toolkits and development environments for smart contracts and crypto applications.
Security News
NIST updates on the NVD backlog after media reports that over 50% of KEVs were unenriched since mid-February. They've contracted additional support and partnered with CISA to clear the backlog by fiscal year-end.
Security News
A hospital in Mobile, Alabama, agreed to a settlement in a landmark ransomware death lawsuit, but is now reportedly reconsidering the agreement and refusing to pay.