chapter 2: initial samples

Chapter02/working-with-files/readWriteSync.js

@@ -0,0 +1,12 @@
+const fs = require('fs');
+const path = require('path');
+
+const filepath = path.join(process.cwd(), 'hello.txt');
+
+let contents = fs.readFileSync(filepath, 'utf8');
+console.log("File Contents:", contents);
+
+contents = contents.toString().toUpperCase();
+
+fs.writeFileSync(filepath, contents);
+console.log("File updated.");