prettify diff and hashrate output

routes/block.js

@@ -28,6 +28,8 @@ router.get('/:hash', async function(req, res, next) {
   const block = blockInstance.toJSON();
   block.confirmations = lastBlock.maxheight - block.height + 1;
   block.time = block.time.toUTCString();
+  block.difficulty = block.difficulty.toFixed(8);
+  block.hashrate = block.hashrate.toLocaleString() + " H/s";
   res.render('block', {
     block,
   });

routes/index.js

@@ -2,6 +2,18 @@ var models = require('../models');
 var express = require('express');
 var router = express.Router();
 
+function formatRate(bytes, decimals = 2) {
+    if (bytes === 0) return '0 Bytes';
+
+    const k = 1000;
+    const dm = decimals < 0 ? 0 : decimals;
+    const sizes = ['H/s', 'KH/s', 'MH/s', 'GH/s', 'TH/s', 'PH/s', 'EH/s', 'ZH/s', 'YH/s'];
+
+    const i = Math.floor(Math.log(bytes) / Math.log(k));
+
+    return parseFloat((bytes / Math.pow(k, i)).toFixed(dm)) + ' ' + sizes[i];
+}
+
 /* GET home page. */
 router.get('/', async function(req, res, next) {
 
@@ -13,6 +25,7 @@ router.get('/', async function(req, res, next) {
   blocks.forEach(function(arrayItem) {
     arrayItem.ago = arrayItem.time.toUTCString().substring(5);
     arrayItem.difficulty = arrayItem.difficulty.toFixed(8);
+    arrayItem.hashrate = formatRate(arrayItem.hashrate, 4);
   });
   res.render('index', {
     blocks,