Merge pull request #2 from XenoCod/Aditya_Kumar_Singh

XenoCod · web-flow · commit fe4df56f2947 · 2022-01-07T19:04:59.000+05:30
Day 3 | NodeJs File Operations
diff --git a/Day3/Day3.js b/Day3/Day3.js
@@ -0,0 +1,88 @@
+// //Creating the server
+// var http= require('http');
+
+// http.createServer(function(req, res){
+//     res.writeHead(200, {'Content-Type': 'text/plain'});
+//     res.write('This is the server home page.');
+//     res.end();
+// }).listen(9000);
+
+
+//Reading the html file
+var http = require('http');
+var fs= require('fs');
+
+http.createServer(function(req, res){
+   fs.readFile('index.html', function(err,data){
+       res.writeHead(200, {'Content-Type': 'text/html'});
+       res.write(data);
+       return res.end();
+   })
+
+}).listen(9000);
+
+
+function appendFile(){
+    fs.appendFile('demo.txt', 'This is a demo file', function (err) {
+        if (err) throw err;
+        console.log('Saved!');
+    });
+}
+
+//Append to file
+appendFile();
+
+//Opening the file
+function openFile(){
+    fs.open('demo.txt', 'w', function (err, file) {
+        if (err) throw err;
+        console.log('Saved!');
+      });
+};
+
+openFile();
+
+
+//Overwriting the present context
+function overwrite(){
+    fs.writeFile('demo.txt', 'Overwrittern', function (err) {
+        if (err) throw err;
+        console.log('Saved!');
+      });
+};
+
+// overwrite();
+
+
+//Updating the file present
+
+function updateFile(){  
+fs.appendFile('demo.txt', 'Updating the content.', function (err) {
+  if (err) throw err;
+  console.log('Updated!');
+});
+}
+
+updateFile();
+
+
+//Deleting the specified file
+function deleteFile(){
+    fs.unlink('demo.txt', function (err) {
+        if (err) throw err;
+        console.log('File deleted!');
+      });
+};
+
+// deleteFile();
+
+//Renaming the presnt File
+function rename(){
+    fs.rename('demo.txt', 'renamedDemo.txt', function (err) {
+        if (err) throw err;
+        console.log('File Renamed!');
+      });
+}
+rename();
+
+
diff --git a/Day3/index.html b/Day3/index.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Day3</title>
+</head>
+<body>
+    <div>
+        <h1>This is a index page which is running on server.</h1>
+        <p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Doloribus, repellendus!</p>
+    </div>
+</body>
+</html>
diff --git a/Day3/renamedDemo.txt b/Day3/renamedDemo.txt
@@ -0,0 +1 @@
+This is a demo fileUpdating the content.

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+This is a demo fileUpdating the content.`