swiggy-2022-bootcamp · Git-Harshit · Jan 3, 2022 · Jan 4, 2022 · Jan 5, 2022 · Jan 6, 2022
diff --git a/Day 1 - Welcome JS - Harshit Gupta/Welcome.html b/Day 1 - Welcome JS - Harshit Gupta/Welcome.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+
+<html lang="en">
+    <head>
+        <title>Welcome to Day 1 - Swiggy IPP Program (Round 2)</title>
+
+        <!-- Running External JavaScript file by including it here (in <script> tags 'src' attribute) in this webpage -->
+        <script type="text/javascript" src="script.js"></script>
+    </head>
+    <body>
+
+        <section style="margin: auto; text-align: center;">
+
+            <div id="head1" onmouseover="this.innerHTML = 'Congratulations, and Welcome to Day 1 of Swiggy IPP';"> Welcome </div>  <!-- Inline Script, here with onmouseover attribute -->
+            <br/>
+            <div id="data1"></div>
+
+            <input type="text" placeholder="Enter something here" />
+
+        </section>
+
+        <!-- Internal Script -->
+        <script>
+            document.getElementsByTagName('input')[0].onblur = function(){
+                document.getElementById('data1').innerHTML = this.value;
+            }
+        </script>
+
+    </body>
+</html>
diff --git a/Day 1 - Welcome JS - Harshit Gupta/script.js b/Day 1 - Welcome JS - Harshit Gupta/script.js
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+// Display Methods covered in session 1 used here
+
+console.log('External Script linked!');
+
+window.alert('Your website is under destructive attack! ;)');
+
+var response = confirm('Press OK to continue');
+console.log("User Response:", response);
+if (response) {
+    document.write();
+} else {
+    document.write('<h1>Oops!</h1>');
+}
+
+window.print();
diff --git a/Day 2 - More on JS - Harshit Gupta/welcome.html b/Day 2 - More on JS - Harshit Gupta/welcome.html
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+<!DOCTYPE html>
+
+<html>
+
+    <head>
+        <title>Welcome to Day 2 - Swiggy IPP Program (Round 2)</title>
+    </head>
+    <body>
+
+        <div style="margin: auto; text-align: center;">
+
+            <div id="head1"> <u>Welcome</u> </div> <br/>
+            <p id="data1"></p>
+
+            <input type="text" id="test" placeholder="Enter something" style="padding: .5em; margin-bottom: .5em; box-shadow: 0 1px 4px; border: none;" />
+
+        </section>
+
+        <!-- Internal Script -->
+        <script>
+
+            'use strict';   // Using strict mode to ensure more reportings, including some of those which might have got ignored
+
+            let testData, dataPoint = document.getElementById('data1');
+            dataPoint.innerHTML = testData = "Something good is cooking!";
+            dataPoint.style.fontSize = "2.5em";
+            dataPoint.style.display = "block";
+            dataPoint.style.visibility = "visible";
+            dataPoint.style.margin = ".5em auto";
+
+            document.getElementById('test').value = "Default Entry";
+            // delete testData;         // Can't delete in strict mode
+
+            var object1 = { id:1, firstName:"Harshit", lastName:"Gupta", fullName: function(){ return this.firstName + ' ' + this.lastName } }
+            const currentDate = new Date(), date1 = new Date(2022, 0, 4, currentDate.getHours(), currentDate.getMinutes(), currentDate.getSeconds(), currentDate.getMilliseconds());
+            console.log("Date of coding:", date1);
+
+            let array1 = [1,2,4,3,6,5,7];
+            array1.sort( (a, b) => { return b-a } );  // Array gets sorted in descending order, with the given compare function
+            document.write("<br/> Your Array: ", array1.toString());
+            document.write("<br/> Sum of your array =  ", array1.reduce( (previousValue, currentValue ) =>  previousValue+currentValue  ), "<br/>");
+            console.log([1,2,3].concat(...[4,5,6,7]), 'is same as', [1,2,3].concat(4,5,6,7), ', right?');
+
+            let tripleArrayTest = "";
+            for (let index=0; index<array1.length; index++) {
+                tripleArrayTest += array1[index];
+            }
+            for (let number of array1) {        // not to be confused with for-in
+                tripleArrayTest += number;
+            }
+            array1.forEach( number => { tripleArrayTest+=number; } );
+
+            let uniqueSet = new Set([1, '1', 2, '2', 5, '5']);
+            console.log(uniqueSet, 'is a unique set (' + (uniqueSet instanceof Set) + ')');
+            console.log('Sets are (by type):', typeof uniqueSet);
+
+            let uniqueMap = new Map(uniqueSet.entries());
+            for (let value in new Array(6).fill(1)) { uniqueMap.delete(value);}
+            console.log('Equivalent Reduced Map:', uniqueMap);
+
+        </script>
+
+    </body>
+
+</html>
diff --git a/Day 3 - Node JS - Harshit Gupta/file_handling.js b/Day 3 - Node JS - Harshit Gupta/file_handling.js
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+var http = require('http');
+let fs = require('fs');     // fs is file system module
+// To upload a file, npm install formidable module
+// To send a mail, npm install nodemailer module
+
+// Creating a local server that listens at hard-coded port 8080
+http.createServer(function (req, res) {
+    fs.readFile("new.html", (error, data)=>{
+        if (error) console.log("Error:", error);
+        res.writeHead(200, { 'Content-Type':'text/html' });
+        res.write(data);
+    });
+}).listen(8080, ()=>{ console.log("Server started listening at port 8080") });
+
+// Opening a file in write mode
+fs.open("new.html", 'w', (error)=>{
+    // To write/overwrite data, use: fs.writeFile('new.html', <data>);
+    if (error) throw error;
+    console.log('new.html file is saved!');
+});
+
+// Appending data at end of file (sometimes succeeded unlink operation just below it, leading to error)
+fs.appendFile('new.html', '<div>New Data</div>', error =>{
+    if (error) throw error;
+    console.log('new.html file has been Updated!');
+});
+
+// Deleting a file
+fs.unlink('new.html', error=>{
+    if (error) throw error;
+    console.log("new.html file has been deleted successfully!");
+});
diff --git a/Day 3 - Node JS - Harshit Gupta/file_upload.js b/Day 3 - Node JS - Harshit Gupta/file_upload.js
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+// Inspired by & Credits: https://www.w3schools.com/nodejs/nodejs_uploadfiles.asp
+
+var http = require('http');
+var formidable = require('formidable');
+
+http.createServer(function (req, res) {
+    // console.log(req.url, req.method)
+    if (req.url === '/upload' && req.method === "POST") {
+        var form = new formidable.IncomingForm();
+        form.parse(req, function (_err, _fields, files) {
+            var oldPath = files.filetoupload.filepath;
+            var newPath = './' + files.filetoupload.originalFilename;
+            fs.rename(oldPath, newPath, function(error) {
+                if (error) throw error;
+                res.write('File uploaded and moved!');
+                res.end();
+            });
+        });
+    } 
+    else {
+        res.writeHead(200, {'Content-Type': 'text/html'});
+        res.write(`<form action="upload" method="POST" enctype="multipart/form-data">
+                        <input type="file" name="file-to-upload"><br><input type="submit">
+                    </form>`);
+        return res.end();
+    }
+}).listen(8080, ()=>{console.info('Server started at port 8080')});
diff --git a/Day 3 - Node JS - Harshit Gupta/my_first_node_module.js b/Day 3 - Node JS - Harshit Gupta/my_first_node_module.js
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+exports.myDateTime = function () {
+    return Date();
+}
diff --git a/Day 3 - Node JS - Harshit Gupta/my_first_node_server.js b/Day 3 - Node JS - Harshit Gupta/my_first_node_server.js
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+var http = require('http');
+// let date = require('./my_first_node_module')
+
+http.createServer(function (req, res) {
+    res.writeHead(200, { 'Content-Type':'text/plain' });
+    // res.write("Current Date is: ", date.myDateTime());
+    res.end("Hello World!");
+}).listen(8080, ()=>{console.info('Server started at port 8080')});
diff --git a/Day 3 - Node JS - Harshit Gupta/package-lock.json b/Day 3 - Node JS - Harshit Gupta/package-lock.json
diff --git a/Day 3 - Node JS - Harshit Gupta/package.json b/Day 3 - Node JS - Harshit Gupta/package.json
@@ -0,0 +1,13 @@
+{
+  "name": "day3-intro",
+  "version": "1.0.0",
+  "description": "",
+  "scripts": {
+    "start": "node testfile",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "Harshit Gupta",
+  "dependencies": {
+    "formidable": "^2.0.1"
+  }
+}
diff --git a/Day 4 - Node API Resources - Harshit Gupta/REST API with node and express - sample code.js b/Day 4 - Node API Resources - Harshit Gupta/REST API with node and express - sample code.js
@@ -0,0 +1,9 @@
+const express = require('express');
+
+const app = express();
+
+app.get('/', (req, res)=>{
+	res.send("Welcome from your local server!");
+});
+
+app.listen(3000, () => {console.log("Server started listening on localhost:3000")});
diff --git a/Day 4 - Node API Resources - Harshit Gupta/axios-sample.js b/Day 4 - Node API Resources - Harshit Gupta/axios-sample.js
@@ -0,0 +1,9 @@
+const axios = require('axios');
+
+// Requesting using axios (GET request)
+axios.get('https://jsonplaceholder.typicode.com/todos/1')
+	.then(response => {
+		console.log('Response Code:', response.status, response.statusText);
+		process.stdout.write(JSON.stringify(response.data));
+	})
+	.catch(error => console.error(error));