sync and async code

1-node-farm/starter/index.js

@@ -0,0 +1,31 @@
+const fs = require('fs');
+
+// Sync way, blocking
+const textIn = fs.readFileSync('./txt/input.txt', 'utf-8', (err, data)=>{
+    console.log(data);
+});
+
+console.log(textIn)
+
+const textOut = `this is what we know about the avacado: ${textIn}.\n created on ${Date.now()}`;
+
+fs.writeFileSync('./txt/output.txt', textOut);
+console.log('File Written!');
+
+
+// Async way, non-blocking
+
+
+fs.readFile('./txt/start.txt', 'utf-8', (err, data1)=>{
+    fs.readFile(`./txt/${data1}.txt`, 'utf-8', (err, data2)=>{
+        console.log(data2);
+        fs.readFile(`./txt/append.txt`, 'utf-8', (err, data3)=>{
+            console.log(data3);
+            fs.writeFile('./txt/final.txt',`${data2}\n${data3}`, 'utf-8', err=>{
+                console.log('your file has been written !');
+            });
+        });
+    });
+});
+
+console.log(`Reading file....`)

1-node-farm/starter/txt/final.txt

@@ -1 +1,2 @@
-The avocado 🥑 is also used as the base for the Mexican dip known as guacamole, as well as a spread on corn tortillas or toast, served with spices. APPENDIX: Generally, avocados 🥑 are served raw, but some cultivars can be cooked for a short time without becoming bitter.
+The avocado 🥑 is also used as the base for the Mexican dip known as guacamole, as well as a spread on corn tortillas or toast, served with spices.
+APPENDIX: Generally, avocados 🥑 are served raw, but some cultivars can be cooked for a short time without becoming bitter.

1-node-farm/starter/txt/output.txt

@@ -0,0 +1,2 @@
+this is what we know about the avacado: The avocado 🥑 is popular in vegetarian cuisine as a substitute for meats in sandwiches and salads because of its high fat content 😄.
+ created on 1628979969797