Tron blockchain base58 address validation Javascript

index.js

import bs58 from "bs58";
import jssha from "jssha";

const sha256 = str => {
    const inst = new jssha("SHA-256", "HEX");
    inst.update(str);
    return inst.getHash("HEX");
};

/**
 * Validates tron address
 *
 * @param addressBase58Check {string} tron address in base58check format (starting with T)
 * @returns {boolean} true if given param is valid tron address and false otherwise
 */
export function validateTronAddress(addressBase58Check) {
    try {
        if (typeof addressBase58Check !== "string" || addressBase58Check.length !== 34) return false;
        const bytes = Buffer.from(bs58.decode(addressBase58Check));
        const checkSum = bytes.subarray(bytes.length - 4).toString("hex");
        const addressWithoutCheckSum = bytes.subarray(0, bytes.length - 4).toString("hex");
        const doubleHash = sha256(sha256(addressWithoutCheckSum));
        const expectedCheckSum = doubleHash.slice(0, 8);
        return expectedCheckSum === checkSum;
    } catch (e) {
        console.log("Failed to validate tron address, treating as the address is wrong");
        return false;
    }
}