@ethersproject/strings

UTF-8 Encoding and Decoding

This feature allows you to convert a string to its UTF-8 byte representation and vice versa. This is useful for encoding data to be sent over the network or stored in smart contracts.

const { toUtf8Bytes, toUtf8String } = require('@ethersproject/strings');

const utf8Bytes = toUtf8Bytes('Hello, Ethereum!');
console.log(utf8Bytes); // Uint8Array of UTF-8 bytes

const utf8String = toUtf8String(utf8Bytes);
console.log(utf8String); // 'Hello, Ethereum!'

Hex String Manipulation

This feature provides utilities for working with hexadecimal strings, such as converting byte arrays to hex strings and validating hex strings. This is particularly useful for handling Ethereum addresses and transaction data.

const { hexlify, isHexString } = require('@ethersproject/strings');

const hexString = hexlify([0x12, 0x34, 0x56]);
console.log(hexString); // '0x123456'

const isValidHex = isHexString(hexString);
console.log(isValidHex); // true

Base64 Encoding and Decoding

This feature allows you to encode and decode strings to and from Base64 format. This can be useful for encoding binary data as a string for storage or transmission.

const { toBase64, fromBase64 } = require('@ethersproject/strings');

const base64String = toBase64('Hello, Ethereum!');
console.log(base64String); // 'SGVsbG8sIEV0aGVyZXVtIQ=='

const originalString = fromBase64(base64String);
console.log(originalString); // 'Hello, Ethereum!'