Efficient (non-standard) UUID

fix_len_single_toString(36).js

// -> output range == equal max safe integer (~ 4 quadrillion)
// output string efficiency could be better, also first digit is often `1`
function randomString() {
    const randomNum = Math.floor(Math.random() * Number.MAX_SAFE_INTEGER); // Generate a single random number
    const boundedString = randomNum.toString(36); // Convert to base36 string
    return boundedString;
}

var_length_base58.js

const ALPHABET = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ234567"
const ALPHABET_ARRAY = Uint8Array.from(ALPHABET, (char) => char.charCodeAt(0))
const ALPHABET_LENGTH = ALPHABET_ARRAY.length

/**
 * Generates a random Base58 string.
 * @param length The length of the generated string. Defaults to 8.
 * @returns A random Base58 string.
 */
export function randomBase58(length: number = 8): string {
  const result = new Array(length)
  for (let i = 0; i < length; i++) {
    const randomIndex = Math.floor(Math.random() * ALPHABET_LENGTH)
    result[i] = String.fromCharCode(ALPHABET_ARRAY[randomIndex])
  }
  return result.join("")
}