Solution: lb_blockchain

Here is the commented solution for this project.

Create the script

Create a file named lb_blockchain.js.

$ touch lb_blockchain.js

Implement the Transaction class

The objective of this part is to implement the Transaction class that represents a transfer of assets between two users of the blockchain.

1. Declare an error class named InvalidTransactionError that inherits from the built-in Error class.

   // File: lb_blockchain.jsclass InvalidTransactionError extends Error {}

2. Declare a class named Transaction.

   // File: lb_blockchain.js