Programming Resources | Python | Javascript | Artificial Intelligence Updates | Computer Science Courses | AI Books

Open in Telegram

Everything about programming for beginners * Python programming * Java programming * App development * Machine Learning * Data Science Managed by: @love_data

Network:Free Courses with Certificate - Python Programming, Data Science, Java Coding, SQL, Web Development, AI, ML, ChatGPT Expert India6 556 Technologies & Applications2 368...

📈 Analytical overview of Telegram channel Programming Resources | Python | Javascript | Artificial Intelligence Updates | Computer Science Courses | AI Books

Channel Programming Resources | Python | Javascript | Artificial Intelligence Updates | Computer Science Courses | AI Books (@programming_guide) in the English language segment is an active participant. Currently, the community unites 56 111 subscribers, ranking 2 368 in the Technologies & Applications category and 6 556 in the India region.

📊 Audience metrics and dynamics

Since its creation on невідомо, the project has demonstrated rapid growth, gathering an audience of 56 111 subscribers.

According to the latest data from 08 June, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by 104 over the last 30 days and by -6 over the last 24 hours, overall reach remains high.

Verification status: Not verified
Engagement rate (ER): The average audience engagement rate is 2.58%. Within the first 24 hours after publication, content typically collects 0.84% reactions from the total number of subscribers.
Post reach: On average, each post receives 1 450 views. Within the first day, a publication typically gains 471 views.
Reactions and interaction: The audience actively supports content: the average number of reactions per post is 3.
Thematic interests: Content is focused on key topics such as algorithm, structure, stack, javascript, programming.

📝 Description and content policy

The author describes the resource as a platform for expressing subjective opinions:
“Everything about programming for beginners * Python programming * Java programming * App development * Machine Learning * Data Science Managed by: @love_data”

Thanks to the high frequency of updates (latest data received on 09 June, 2026), the channel maintains relevance and a high level of publication reach. Analytics show that the audience actively interacts with content, making it an important point of influence in the Technologies & Applications category.

56 111

Subscribers

-624 hours

+437 days

+10430 days

1 450

Post views

~ 47124 hours

~ 69148 hours

2.58%

Engagement rate

~ 1

Posts per day

Ads index

beta

Posts Archive

56 109

✅ Top Web Development Interview Questions & Answers 🌐💻 📍 1. What is the difference between Frontend and Backend development? Answer: Frontend deals with the part of the website users interact with (UI/UX), using HTML, CSS, JavaScript frameworks like React or Vue. Backend handles server-side logic, databases, and APIs using languages like Node.js, Python, or PHP. 📍 2. What is REST and why is it important? Answer: REST (Representational State Transfer) is an architectural style for designing APIs. It uses HTTP methods (GET, POST, PUT, DELETE) to manipulate resources and enables communication between client and server efficiently. 📍 3. Explain the concept of Responsive Design. Answer: Responsive Design ensures web pages render well on various devices and screen sizes by using flexible grids, images, and CSS media queries. 📍 4. What are CSS Flexbox and Grid? Answer: Both are CSS layout modules. Flexbox is for one-dimensional layouts (row or column), while Grid manages two-dimensional layouts (rows and columns), simplifying complex page structures. 📍 5. What is the Virtual DOM in React? Answer: A lightweight copy of the real DOM that React uses to efficiently update only parts of the UI that changed, improving performance. 📍 6. How do you handle authentication in web applications? Answer: Common methods include sessions with cookies, tokens like JWT, OAuth, or third-party providers (Google, Facebook). 📍 7. What is CORS and how do you handle it? Answer: Cross-Origin Resource Sharing (CORS) is a security feature blocking requests from different origins. Handled by setting appropriate headers on the server to allow trusted domains. 📍 8. Explain Event Loop and Asynchronous programming in JavaScript. Answer: Event Loop allows JavaScript to perform non-blocking actions by handling callbacks, promises, and async/await, enabling concurrency even though JS is single-threaded. 📍 9. What is the difference between SQL and NoSQL databases? Answer: SQL databases are relational, use structured schemas with tables (e.g., MySQL). NoSQL databases are non-relational, schema-flexible, and handle unstructured data (e.g., MongoDB). 📍 🔟 What are WebSockets? Answer: WebSockets provide full-duplex communication channels over a single TCP connection, enabling real-time data flow between client and server. 💡 Pro Tip: Back answers with examples or a small snippet, and relate them to projects you’ve built. Be ready to explain trade-offs between technologies. ❤️ Tap for more!

56 109

𝗜𝗜𝗧 𝗥𝗼𝗼𝗿𝗸𝗲𝗲 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗶𝗻 𝗗𝗮𝘁𝗮 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 𝗮𝗻𝗱 𝗔𝗜 𝗣𝗿𝗼𝗴𝗿𝗮𝗺😍 Eligibility: Open to everyone Duration: 6 Months Program Mode: Online Taught By: IIT Roorkee Professors Companies majorly hire candidates with Data Science and AI knowledge these days. Deadline: 25th January 2026 𝗥𝗲𝗴𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 𝗟𝗶𝗻𝗸👇: https://pdlink.in/4qHVFkI Only Limited Seats Available!

56 109

🚀 Roadmap to Become a Software Architect 👨‍💻 📂 Programming & Development Fundamentals ∟📂 Master One or More Programming Languages (Java, C#, Python, etc.) ∟📂 Learn Data Structures & Algorithms ∟📂 Understand Design Patterns & Best Practices 📂 Software Design & Architecture Principles ∟📂 Learn SOLID Principles & Clean Code Practices ∟📂 Master Object-Oriented & Functional Design ∟📂 Understand Domain-Driven Design (DDD) 📂 System Design & Scalability ∟📂 Learn Microservices & Monolithic Architectures ∟📂 Understand Load Balancing, Caching & CDNs ∟📂 Dive into CAP Theorem & Event-Driven Architecture 📂 Databases & Storage Solutions ∟📂 Master SQL & NoSQL Databases ∟📂 Learn Database Scaling & Sharding Strategies ∟📂 Understand Data Warehousing & ETL Processes 📂 Cloud Computing & DevOps ∟📂 Learn Cloud Platforms (AWS, Azure, GCP) ∟📂 Understand CI/CD & Infrastructure as Code (IaC) ∟📂 Work with Containers & Kubernetes 📂 Security & Performance Optimization ∟📂 Master Secure Coding Practices ∟📂 Learn Authentication & Authorization (OAuth, JWT) ∟📂 Optimize System Performance & Reliability 📂 Project Management & Communication ∟📂 Work with Agile & Scrum Methodologies ∟📂 Collaborate with Cross-Functional Teams ∟📂 Improve Technical Documentation & Decision-Making 📂 Real-World Experience & Leadership ∟📂 Design & Build Scalable Software Systems ∟📂 Contribute to Open-Source & Architectural Discussions ∟📂 Mentor Developers & Lead Engineering Teams 📂 Interview Preparation & Career Growth ∟📂 Solve System Design Challenges ∟📂 Master Architectural Case Studies ∟📂 Network & Apply for Software Architect Roles ✅ Get Hired as a Software Architect React "❤️" for More 👨‍💻

56 109

💡 𝗠𝗮𝗰𝗵𝗶𝗻𝗲 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗶𝘀 𝗼𝗻𝗲 𝗼𝗳 𝘁𝗵𝗲 𝗺𝗼𝘀𝘁 𝗶𝗻-𝗱𝗲𝗺𝗮𝗻𝗱 𝘀𝗸𝗶𝗹𝗹𝘀 𝗶𝗻 𝟮𝟬𝟮𝟲! Start learning ML for FREE and boost your resume with a certification 🏆 📊 Hands-on learning 🎓 Certificate included 🚀 Career-ready skills 🔗 𝗘𝗻𝗿𝗼𝗹𝗹 𝗙𝗼𝗿 𝗙𝗥𝗘𝗘 👇:- https://pdlink.in/4bhetTu 👉 Don’t miss this opportunity

56 109

Advanced programming concepts you should know 👇👇 ✅ 1. Object-Oriented Programming (OOP) Think of it like real life: A car is an object with properties (color, speed) and methods (drive, brake). You build code using reusable objects. ✅ 2. Inheritance Like family traits: A child class gets features from a parent class. Example: A Dog class can inherit from an Animal class. ✅ 3. Polymorphism One thing, many forms. Like a button that does different things depending on the app. Same action, different results. ✅ 4. Encapsulation Hiding details to keep it clean. Like using a microwave—you press a button, don’t worry about how it works inside. ✅ 5. Recursion When a function calls itself. Like Russian dolls inside each other. Useful for problems like solving a maze or calculating factorials. ✅ 6. Asynchronous Programming Doing many things at once. Like cooking while waiting for a download. It avoids “blocking” other tasks. ✅ 7. APIs Like a waiter between your code and a service. You say, “Get me the weather,” the API brings the data for you. ✅ 8. Data Structures & Algorithms Data structures = ways to organize info (like shelves). Algorithms = steps to solve a problem (like a recipe). ✅ 9. Big-O Notation A way to measure how fast or slow your code runs as data grows. More efficient code = faster apps! ✅ 10. Design Patterns Reusable solutions to common coding problems. Like blueprints for building a house, but for code. React ♥️ for more

56 109

𝗙𝘂𝗹𝗹𝘀𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗵𝗶𝗴𝗵-𝗱𝗲𝗺𝗮𝗻𝗱 𝘀𝗸𝗶𝗹𝗹 𝗜𝗻 𝟮𝟬𝟮𝟲😍 Join FREE Masterclass In Hyderabad/Pune/Noida Cities 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝗲𝘀:- - 500+ Hiring Partners - 60+ Hiring Drives - 100% Placement Assistance 𝗕𝗼𝗼𝗸 𝗮 𝗙𝗥𝗘𝗘 𝗱𝗲𝗺𝗼👇:- 🔹 Hyderabad :- https://pdlink.in/4cJUWtx 🔹 Pune :- https://pdlink.in/3YA32zi 🔹 Noida :- https://linkpd.in/NoidaFSD Hurry Up 🏃‍♂️! Limited seats are available

56 109

💻 Programming Domains & Languages What to learn. Why to learn. Where you fit. 🧠 Data Analytics - Analyze data - Build reports - Find insights Languages: SQL, Python, R Tools: Excel, Power BI, Tableau Jobs: Data Analyst, BI Analyst, Business Analyst 🤖 Data Science & AI - Build models - Predict outcomes - Work with ML Languages: Python, R Libraries: pandas, numpy, scikit-learn, tensorflow Jobs: Data Scientist, ML Engineer, AI Engineer 🌐 Web Development - Build websites - Create web apps Frontend: HTML, CSS, JavaScript Backend: JavaScript, Python, Java, PHP Frameworks: React, Node.js, Django Jobs: Frontend, Backend, Full Stack Developer 📱 Mobile App Development - Build mobile apps Android: Kotlin, Java iOS: Swift Cross-platform: Flutter, React Native Jobs: Android, iOS, Mobile App Developer 🧩 Software Development - Build systems - Write core logic Languages: Java, C++, C#, Python Used in: Enterprise apps, Desktop software Jobs: Software Engineer, Application Developer 🛡️ Cybersecurity - Secure systems - Test vulnerabilities Languages: Python, C, C++, Bash Tools: Kali Linux, Metasploit Jobs: Security Analyst, Ethical Hacker ☁️ Cloud & DevOps - Deploy apps - Manage servers Languages: Python, Bash, Go Tools: AWS, Docker, Kubernetes Jobs: DevOps Engineer, Cloud Engineer 🎮 Game Development - Build games - Design mechanics Languages: C++, C# Engines: Unity, Unreal Engine Jobs: Game Developer, Game Designer 🎯 How to choose - Like data → Data Analytics - Like math → Data Science - Like building websites → Web Development - Like apps → Mobile Development - Like system logic → Software Development - Like security → Cybersecurity ✅ Smart strategy - Pick one domain - Master one language - Add tools slowly - Build projects 😊 Double Tap ♥️ For More

56 109

✅ Full-Stack Development Basics You Should Know 🌐💡 1️⃣ What is Full-Stack Development? Full-stack dev means working on both the frontend (client-side) and backend (server-side) of a web application. 🔄 2️⃣ Frontend (What Users See) Languages & Tools: - HTML – Structure 🏗️ - CSS – Styling 🎨 - JavaScript – Interactivity ✨ - React.js / Vue.js – Frameworks for building dynamic UIs ⚛️ 3️⃣ Backend (Behind the Scenes) Languages & Tools: - Node.js, Python, PHP – Handle server logic 💻 - Express.js, Django – Frameworks ⚙️ - Database – MySQL, MongoDB, PostgreSQL 🗄️ 4️⃣ API (Application Programming Interface) - Connect frontend to backend using REST APIs 🤝 - Send and receive data using JSON 📦 5️⃣ Database Basics - SQL: Structured data (tables) 📊 - NoSQL: Flexible data (documents) 📄 6️⃣ Version Control - Use Git and GitHub to manage and share code 🧑‍💻 7️⃣ Hosting & Deployment - Host frontend: Vercel, Netlify 🚀 - Host backend: Render, Railway, Heroku ☁️ 8️⃣ Authentication - Implement login/signup using JWT, Sessions, or OAuth 🔐 💬 Tap ❤️ for more! #FullStack #WebDevelopment

56 109

𝗧𝗵𝗲 𝟯 𝗦𝗸𝗶𝗹𝗹𝘀 𝗧𝗵𝗮𝘁 𝗪𝗶𝗹𝗹 𝗠𝗮𝗸𝗲 𝗬𝗼𝘂 𝗨𝗻𝘀𝘁𝗼𝗽𝗽𝗮𝗯𝗹𝗲 𝗶𝗻 𝟮𝟬𝟮𝟲😍 Start learning for FREE and earn a certification that adds real value to your resume. 𝗖𝗹𝗼𝘂𝗱 𝗖𝗼𝗺𝗽𝘂𝘁𝗶𝗻𝗴:- https://pdlink.in/3LoutZd 𝗖𝘆𝗯𝗲𝗿 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆:- https://pdlink.in/3N9VOyW 𝗕𝗶𝗴 𝗗𝗮𝘁𝗮 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀:- https://pdlink.in/497MMLw 👉 Enroll today & future-proof your career!

56 109

𝟱 𝗖𝗼𝗱𝗶𝗻𝗴 𝗖𝗵𝗮𝗹𝗹𝗲𝗻𝗴𝗲𝘀 𝗧𝗵𝗮𝘁 𝗔𝗰𝘁𝘂𝗮𝗹𝗹𝘆 𝗠𝗮𝘁𝘁𝗲𝗿 𝗙𝗼𝗿 𝗗𝗮𝘁𝗮 𝗦𝗰𝗶𝗲𝗻𝘁𝗶𝘀𝘁𝘀 💻 You don’t need to be a LeetCode grandmaster. But data science interviews still test your problem-solving mindset—and these 5 types of challenges are the ones that actually matter. Here’s what to focus on (with examples) 👇 🔹 1. String Manipulation (Common in Data Cleaning) ✅ Parse messy columns (e.g., split “Name_Age_City”) ✅ Regex to extract phone numbers, emails, URLs ✅ Remove stopwords or HTML tags in text data Example: Clean up a scraped dataset from LinkedIn bias 🔹 2. GroupBy and Aggregation with Pandas ✅ Group sales data by product/region ✅ Calculate avg, sum, count using .groupby() ✅ Handle missing values smartly Example: “What’s the top-selling product in each region?” 🔹 3. SQL Join + Window Functions ✅ INNER JOIN, LEFT JOIN to merge tables ✅ ROW_NUMBER(), RANK(), LEAD(), LAG() for trends ✅ Use CTEs to break complex queries Example: “Get 2nd highest salary in each department” 🔹 4. Data Structures: Lists, Dicts, Sets in Python ✅ Use dictionaries to map, filter, and count ✅ Remove duplicates with sets ✅ List comprehensions for clean solutions Example: “Count frequency of hashtags in tweets” 🔹 5. Basic Algorithms (Not DP or Graphs) ✅ Sliding window for moving averages ✅ Two pointers for duplicate detection ✅ Binary search in sorted arrays Example: “Detect if a pair of values sum to 100” 🎯 Tip: Practice challenges that feel like real-world data work, not textbook CS exams. Use platforms like: StrataScratch Hackerrank (SQL + Python) Kaggle Code I have curated the best interview resources to crack Data Science Interviews 👇👇 https://whatsapp.com/channel/0029Va8v3eo1NCrQfGMseL2D Like if you need similar content 😄👍

56 109

𝗕𝗲𝗰𝗼𝗺𝗲 𝗮 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗲𝗱 𝗗𝗮𝘁𝗮 𝗔𝗻𝗮𝗹𝘆𝘀𝘁 𝗜𝗻 𝗧𝗼𝗽 𝗠𝗡𝗖𝘀😍 Learn Data Analytics, Data Science & AI From Top Data Experts 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝗲𝘀:- - 12.65 Lakhs Highest Salary - 500+ Partner Companies - 100% Job Assistance - 5.7 LPA Average Salary 𝗕𝗼𝗼𝗸 𝗮 𝗙𝗥𝗘𝗘 𝗗𝗲𝗺𝗼👇:- 𝗢𝗻𝗹𝗶𝗻𝗲:- https://pdlink.in/4fdWxJB 🔹 Hyderabad :- https://pdlink.in/4kFhjn3 🔹 Pune:- https://pdlink.in/45p4GrC 🔹 Noida :- https://linkpd.in/DaNoida ( Hurry Up 🏃‍♂️Limited Slots )

56 109

✅ Core Data Structures Part 2 – Stacks Queues 📚📥📤 Stacks and queues are fundamental linear data structures used in many algorithms and real-world applications like undo operations, task scheduling, and more. 1️⃣ What is a Stack? A Stack is a Last-In-First-Out (LIFO) structure. Think of a stack of plates: you add (push) and remove (pop) from the top. Operations: • push(item) – Add item to the top • pop() – Remove item from the top • peek() – View top item without removing • is_empty() – Check if stack is empty Python Implementation (Using List)

stack = []

# Push
stack.append(10)
stack.append(20)

# Pop
print(stack.pop())  # 20

# Peek
print(stack[-1])    # 10

# Check empty
print(len(stack) == 0)

2️⃣ What is a Queue? A Queue is a First-In-First-Out (FIFO) structure. Think of a line at a ticket counter: first come, first served. Operations: • enqueue(item) – Add item to the rear • dequeue() – Remove item from the front • peek() – View front item • is_empty() – Check if queue is empty Python Implementation (Using collections.deque)

from collections import deque

queue = deque()

# Enqueue
queue.append(10)
queue.append(20)

# Dequeue
print(queue.popleft())  # 10

# Peek
print(queue[0])         # 20

# Check empty
print(len(queue) == 0)

3️⃣ Stack Using Linked List (Python)

class Node:
    def __init__(self, data):
        self.data = data
        self.next = None

class Stack:
    def __init__(self):
        self.top = None

    def push(self, data):
        node = Node(data)
        node.next = self.top
        self.top = node

    def pop(self):
        if not self.top:
            return None
        data = self.top.data
        self.top = self.top.next
        return data

4️⃣ Queue Using Linked List (Python)

class Node:
    def __init__(self, data):
        self.data = data
        self.next = None

class Queue:
    def __init__(self):
        self.front = self.rear = None

    def enqueue(self, data):
        node = Node(data)
        if not self.rear:
            self.front = self.rear = node
        else:
            self.rear.next = node
            self.rear = node

    def dequeue(self):
        if not self.front:
            return None
        data = self.front.data
        self.front = self.front.next
        if not self.front:
            self.rear = None
        return data

📝 Practice Tasks 1. Implement a stack using a list 2. Implement a queue using a list 3. Reverse a string using a stack 4. Check for balanced parentheses using a stack 5. Simulate a queue using two stacks Double Tap ♥️ For More

56 109

🔰 Python data types with example

56 109

🎁❗️TODAY FREE❗️🎁 Entry to our VIP channel is completely free today. Tomorrow it will cost $500! 🔥 JOIN 👇 https://t.me/+49f4gRT_WB9mMDli https://t.me/+49f4gRT_WB9mMDli https://t.me/+49f4gRT_WB9mMDli

56 109

✅ 10 Key Programming Differences! 💻🚀 1️⃣ Python 2 vs Python 3 ➡️ Python 2: Legacy, no updates ➡️ Python 3: Modern, better syntax support 📌 Always use Python 3 for new projects. 2️⃣ Static vs Dynamic Typing ➡️ Static: Type declared (e.g., Java, C++) ➡️ Dynamic: Type inferred at runtime (e.g., Python, JavaScript) 📌 Static = fewer bugs, Dynamic = faster dev 3️⃣ Abstraction vs Encapsulation ➡️ Abstraction: Hides complexity ➡️ Encapsulation: Hides data 📌 Abstraction = "What", Encapsulation = "How" 4️⃣ REST vs SOAP (APIs) ➡️ REST: Lightweight, uses HTTP ➡️ SOAP: Protocol, strict rules 📌 REST is more common today 5️⃣ SQL vs NoSQL ➡️ SQL: Structured data, tables (e.g., MySQL) ➡️ NoSQL: Unstructured, scalable (e.g., MongoDB) 📌 SQL = Relational, NoSQL = Flexible 6️⃣ For Loop vs While Loop ➡️ For: Known iterations ➡️ While: Unknown, condition-based 📌 Use for when count is known. 7️⃣ Function vs Method ➡️ Function: Independent block ➡️ Method: Function inside class 📌 All methods are functions, not vice versa 8️⃣ Frontend vs Backend ➡️ Frontend: User interface (HTML, CSS, JS) ➡️ Backend: Server logic, DB (Node.js, Python, etc.) 📌 Frontend = what users see 9️⃣ Procedural vs OOP ➡️ Procedural: Functions logic ➡️ OOP: Objects, classes 📌 OOP = more modular reusable 🔟 Null vs Undefined (JavaScript) ➡️ Null: Assigned empty value ➡️ Undefined: Variable declared, not assigned 📌 typeof null is 'object', quirky but true! 💬 Tap ❤️ if you found this helpful!

56 109

𝐏𝐚𝐲 𝐀𝐟𝐭𝐞𝐫 𝐏𝐥𝐚𝐜𝐞𝐦𝐞𝐧𝐭 - 𝐆𝐞𝐭 𝐏𝐥𝐚𝐜𝐞𝐝 𝐈𝐧 𝐓𝐨𝐩 𝐌𝐍𝐂'𝐬 😍 Learn Coding From Scratch - Lectures Taught By IIT Alumni 60+ Hiring Drives Every Month 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬:- 🌟 Trusted by 7500+ Students 🤝 500+ Hiring Partners 💼 Avg. Rs. 7.4 LPA 🚀 41 LPA Highest Package Eligibility: BTech / BCA / BSc / MCA / MSc 𝐑𝐞𝐠𝐢𝐬𝐭𝐞𝐫 𝐍𝐨𝐰👇 :- https://pdlink.in/4hO7rWY Hurry, limited seats available!

56 109

56 109

𝗣𝗹𝗮𝗰𝗲𝗺𝗲𝗻𝘁 𝗔𝘀𝘀𝗶𝘀𝘁𝗮𝗻𝗰𝗲 𝗣𝗿𝗼𝗴𝗿𝗮𝗺 𝗶𝗻 𝗗𝗮𝘁𝗮 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 𝗮𝗻𝗱 𝗔𝗿𝘁𝗶𝗳𝗶𝗰𝗶𝗮𝗹 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝗰𝗲 𝗯𝘆 𝗜𝗜𝗧 𝗥𝗼𝗼𝗿𝗸𝗲𝗲😍 Deadline: 18th January 2026 Eligibility: Open to everyone Duration: 6 Months Program Mode: Online Taught By: IIT Roorkee Professors Companies majorly hire candidates having Data Science and Artificial Intelligence knowledge these days. 𝗥𝗲𝗴𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 𝗟𝗶𝗻𝗸👇: https://pdlink.in/4qHVFkI Only Limited Seats Available!

56 109

Here is the reformatted text: Coding interview questions with concise answers for software roles: 1️⃣ What happens when you type a URL and hit Enter? Answer: - DNS Lookup → IP address - Browser sends HTTP/HTTPS request - Server responds with HTML/CSS/JS - Browser builds DOM, applies styles (CSSOM), runs JS - Page is rendered 2️⃣ Difference between var, let, and const? Answer: - var: function-scoped, hoisted - let: block-scoped, not hoisted - const: block-scoped, can’t be reassigned 3️⃣ Reverse a String in JavaScript

function reverseString(str) {
  return str.split('').reverse().join('');
}

4️⃣ Find the max number in an array

const max = Math.max(...arr);

5️⃣ Write a function to check if a number is prime

function isPrime(n) {
  if (n < 2) return false;
  for (let i = 2; i <= Math.sqrt(n); i++) {
    if (n % i === 0) return false;
  }
  return true;
}

6️⃣ What is closure in JavaScript? Answer: A function that remembers variables from its outer scope even after the outer function has returned. 7️⃣ What is event delegation? Answer: Attaching a single event listener to a parent element to manage events on its children using event.target. 8️⃣ Difference between == and === Answer: - == checks value (with type coercion) - === checks value + type (strict comparison) 9️⃣ What is the Virtual DOM? Answer: A lightweight copy of the real DOM used in React. React updates the virtual DOM first and then applies only the changes to the real DOM for efficiency. 🔟 Write code to remove duplicates from an array

const uniqueArr = [...new Set(arr)];

React ❤️ for more

56 109

📊 𝗗𝗮𝘁𝗮 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 𝗙𝗥𝗘𝗘 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗖𝗼𝘂𝗿𝘀𝗲😍 🚀Upgrade your skills with industry-relevant Data Analytics training at ZERO cost ✅ Beginner-friendly ✅ Certificate on completion ✅ High-demand skill in 2026 𝐋𝐢𝐧𝐤 👇:- https://pdlink.in/497MMLw 📌 100% FREE – Limited seats available!