Security News
Highlights from the 2024 Rails Community Survey
A record 2,709 developers participated in the 2024 Ruby on Rails Community Survey, revealing key tools, practices, and trends shaping the Rails ecosystem.
@ethersproject/bytes
Advanced tools
@ethersproject/bytes is a utility library for handling and manipulating byte arrays in JavaScript. It is part of the ethers.js library, which is widely used for interacting with the Ethereum blockchain. This package provides various functions to work with byte arrays, including conversion, concatenation, slicing, and more.
Conversion between hex strings and byte arrays
This feature allows you to convert a hex string to a byte array and vice versa. The `arrayify` function converts a hex string to a Uint8Array, and the `hexlify` function converts a Uint8Array back to a hex string.
const { arrayify, hexlify } = require('@ethersproject/bytes');
const hexString = '0x123456';
const byteArray = arrayify(hexString);
console.log(byteArray); // Uint8Array [ 18, 52, 86 ]
const newHexString = hexlify(byteArray);
console.log(newHexString); // '0x123456'
Concatenation of byte arrays
This feature allows you to concatenate multiple byte arrays into a single byte array. The `concat` function takes an array of Uint8Arrays and returns a new Uint8Array that is the concatenation of all the input arrays.
const { concat } = require('@ethersproject/bytes');
const byteArray1 = new Uint8Array([1, 2, 3]);
const byteArray2 = new Uint8Array([4, 5, 6]);
const concatenatedArray = concat([byteArray1, byteArray2]);
console.log(concatenatedArray); // Uint8Array [ 1, 2, 3, 4, 5, 6 ]
Slicing byte arrays
This feature allows you to slice a byte array to get a subarray. The `slice` function takes a byte array and start and end indices, and returns a new byte array that is a subarray of the input array.
const { arrayify, hexlify, slice } = require('@ethersproject/bytes');
const hexString = '0x1234567890abcdef';
const byteArray = arrayify(hexString);
const slicedArray = slice(byteArray, 2, 6);
console.log(hexlify(slicedArray)); // '0x34567890'
The 'buffer' package is a core Node.js module that provides a way to handle binary data. It offers similar functionalities to @ethersproject/bytes, such as conversion between different formats, concatenation, and slicing of byte arrays. However, 'buffer' is more general-purpose and not specifically tailored for Ethereum or blockchain-related tasks.
The 'ethereumjs-util' package is a collection of utility functions for Ethereum, including functions for handling byte arrays. It provides similar functionalities to @ethersproject/bytes, such as conversion between hex strings and byte arrays, and byte array manipulation. However, 'ethereumjs-util' includes a broader range of utilities specifically for Ethereum development.
This sub-module is part of the ethers project.
It is responsible for manipulating binary data.
For more information, see the documentation.
Most users will prefer to use the umbrella package, but for those with more specific needs, individual components can be imported.
const {
isBytesLike,
isBytes,
arrayify,
concat,
stripZeros,
zeroPad,
isHexString,
hexlify,
hexDataLength,
hexDataSlice,
hexConcat,
hexValue,
hexStripZeros,
hexZeroPad,
splitSignature,
joinSignature,
// Types
Bytes,
BytesLike,
DataOptions,
Hexable,
SignatureLike,
Signature
} = require("@ethersproject/bytes");
MIT License
FAQs
Bytes utility functions for ethers.
The npm package @ethersproject/bytes receives a total of 732,091 weekly downloads. As such, @ethersproject/bytes popularity was classified as popular.
We found that @ethersproject/bytes demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer 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
A record 2,709 developers participated in the 2024 Ruby on Rails Community Survey, revealing key tools, practices, and trends shaping the Rails ecosystem.
Security News
In 2023, data breaches surged 78% from zero-day and supply chain attacks, but developers are still buried under alerts that are unable to prevent these threats.
Security News
Solo open source maintainers face burnout and security challenges, with 60% unpaid and 60% considering quitting.