Added answer to the few of the questions

week-1/offline-class-1/level-1/02-Number.js

@@ -9,6 +9,8 @@ explainParseInt("42");
 explainParseInt("42px");
 explainParseInt("3.14");
 
+console.log("The first thing is done")
+
 function explainParseFloat(value) {
   console.log("Original Value:", value);
   let result = parseFloat(value);

week-1/offline-class-1/level-2/01-Class.js

@@ -5,8 +5,10 @@ class Animal {
     this.legCount = legCount
   }
   describe() {
-    return `${this.name} has ${this.legCount} legs`
+    console.log(`${this.name} has ${this.legCount} legs`)
+    return 0;
   }
 }
 
-
+let animal = new Animal("dog",4);
+animal.describe();

week-1/offline-class-1/level-2/02-Date.js

@@ -13,7 +13,7 @@ function dateMethods() {
   // Setting components of the date
   currentDate.setFullYear(2022);
   console.log("After setFullYear:", currentDate);
-
+  
   currentDate.setMonth(5); // Setting month to June (zero-indexed)
   console.log("After setMonth:", currentDate);
 

week-3/03-mongo/db/index.js

@@ -1,19 +1,33 @@
 const mongoose = require('mongoose');
 
 // Connect to MongoDB
-mongoose.connect('your-mongodb-url');
+mongoose.connect('mongodb+srv://harshkumargupta630:[email protected]/');
 
 // Define schemas
 const AdminSchema = new mongoose.Schema({
     // Schema definition here
+    username: String,
+    password: String
 });
 
 const UserSchema = new mongoose.Schema({
     // Schema definition here
+
+    username:String,
+    password:String,
+    purchasedCourses:[{
+        type:mongoose.Schema.Types.ObjectId,
+        ref:'Course'
+
+    }]
 });
 
 const CourseSchema = new mongoose.Schema({
     // Schema definition here
+    title:String,
+    description:String,
+    imageLink:String,
+    price:Number
 });
 
 const Admin = mongoose.model('Admin', AdminSchema);

week-3/03-mongo/middleware/admin.js

@@ -1,7 +1,23 @@
 // Middleware for handling auth
+const {Admin} = require("../db");
 function adminMiddleware(req, res, next) {
     // Implement admin auth logic
     // You need to check the headers and validate the admin from the admin DB. Check readme for the exact headers to be expected
+    const username=req.headers.username;
+    const password = req.headers.password;
+    Admin.findOne({
+        username,
+        password
+    })
+        .then(function(value){
+            if(value){
+                next();
+            } else{
+                res.status(403).json({
+                    msg: "Admin doesnot exist"
+                })
+            }
+        })
 }
 
 module.exports = adminMiddleware;

week-3/03-mongo/middleware/user.js

@@ -1,6 +1,25 @@
+const { User } = require("../db")
 function userMiddleware(req, res, next) {
     // Implement user auth logic
     // You need to check the headers and validate the user from the user DB. Check readme for the exact headers to be expected
+    const username = req.headers.username;
+    const password = req.headers.password;
+    User.findOne({
+        username,
+        password
+    })
+        .then(function(value){
+            if(value){
+                next();
+            } else{
+                res.status(403).json({
+                    msg:"User doesnot exists"
+                })
+            }
+        })
+
+
+
 }
 
 module.exports = userMiddleware;