@hazae41/base58/out/mods/base58/mod.js

Base58 for the web

import { base16 } from "../../libs/base16/mod.js";
export var base58;
(function (base58) {
    base58.alphabet = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
    function encode(data) {
        if (data.length === 0)
            return "";
        let zeros = 0;
        while (zeros < data.length && data[zeros] === 0)
            zeros++;
        if (zeros === data.length)
            return "1".repeat(zeros);
        let result = "";
        for (let value = BigInt(`0x${base16.encode(data)}`); value > 0n; value = value / 58n)
            result = base58.alphabet[Number(value % 58n)] + result;
        return "1".repeat(zeros) + result;
    }
    base58.encode = encode;
    function decode(text) {
        if (text.length === 0)
            return new Uint8Array(0);
        let zeros = 0;
        while (zeros < text.length && text[zeros] === "1")
            zeros++;
        if (zeros === text.length)
            return new Uint8Array(zeros);
        let value = BigInt(0);
        for (let i = zeros; i < text.length; i++)
            value = (value * 58n) + BigInt(base58.alphabet.indexOf(text[i]));
        return base16.decode("00".repeat(zeros) + value.toString(16));
    }
    base58.decode = decode;
})(base58 || (base58 = {}));