Block for a Blockchain made in JS on the SSaurel's Blog

Block.js

class Block {
 constructor(index, previousHash, timestamp, data) {
   this.index = index;
   this.previousHash = previousHash;
   this.timestamp = timestamp;
   this.data = data;
   this.nonce = 0;
   this.hash = calculateHash(this); // defined later
 }
}