In the dev/test.js file, we will begin by importing our blockchain data structure or Blockchain constructor function, and then making a new instance of our blockchain as bitcoin. We're then going to log out of the bitcoin blockchain as follows:
const Blockchain = require ('./blockchain');const bitcoin = new Blockchain ();console.log(bitcoin);
Save this file and run the test by typing node dev/test.js into the terminal.
After running the test, we can observe the genesis block, as shown in the following screenshot:
In the preceding screenshot, for the chain array, you can see that we have one block inside of the ...