stacker.news/lib/hex.js

21 lines
603 B
JavaScript

/**
* Convert a buffer to a hex string
* @param {*} buffer - the buffer to convert
* @returns {string} - the hex string
*/
export function toHex (buffer) {
const byteArray = new Uint8Array(buffer)
const hexString = Array.from(byteArray, byte => byte.toString(16).padStart(2, '0')).join('')
return hexString
}
/**
* Convert a hex string to a buffer
* @param {string} hex - the hex string to convert
* @returns {ArrayBuffer} - the buffer
*/
export function fromHex (hex) {
const byteArray = new Uint8Array(hex.match(/.{1,2}/g).map(byte => parseInt(byte, 16)))
return byteArray.buffer
}