Blockchain for the tutorial on the SSaurel's Blog

Blockchain.js

class Blockchain {
 constructor(difficulty) {
    this.difficulty = difficulty;
    this.blocks = [];
    // Add Genesis Block
    var genesisBlock = new Block(0, null, Date.now(), "Genesis block");
    genesisBlock.mineBlock(this.difficulty);
    this.blocks.push(genesisBlock);
 }
}

Blockchain.prototype.newBlock = function (data) {
 var latestBlock = this.blocks[this.blocks.length - 1];
 return new Block(latestBlock.index + 1, latestBlock.hash, 
                   Date.now(), data);
}

Blockchain.prototype.addBlock = function(block) {
 block.mineBlock(this.difficulty);
 this.blocks.push(block);
}