🔥Day 20 - 90 Days Full Stack Plan | JavaScript Objects, Object Operations & Browser Navigator APIs 🚀
🔥 90 Days Full Stack Challenge – Day 20 | JavaScript Objects, Object Operations & Browser Navigator APIs 🚀
Welcome to Day 20 of our 90 Days Plan to become a Job-Ready Full Stack Developer!
Yesterday, we mastered JavaScript Strings, Arrays, Conditional Statements, and Iteration Statements. Today, we're taking a deeper dive into JavaScript Objects, Object Manipulation Techniques, Shallow vs Deep Copy Concepts, and Browser Navigator APIs that are widely used in modern web applications. 🚀
🎯 Who Should Watch?
✅ .NET Full Stack Developers (C# + Angular)
✅ Java Full Stack Developers (Spring Boot + React)
✅ Python Full Stack Developers (Django + React)
✅ MERN Stack Developers (MongoDB, Express, React, Node.js)
✅ MEAN Stack Developers (MongoDB, Express, Angular, Node.js)
✅ Anyone preparing for software job interviews
✅ College graduates (2022-2026 batch)
✅ JavaScript beginners
🎉 BIG FREE OPPORTUNITY FOR ALL GRADUATES (2026 & BELOW) 🎉
💬 Connect With Us:
📱 WhatsApp Group: https://chat.whatsapp.com/BVBd85pt57Q...
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Today I mastered JavaScript Objects, Object Operations, Browser APIs & Debugging! 🚀
📌 In this 1 Hour 10 Minutes comprehensive session, you'll learn:
⏱️ COMPLETE VIDEO TIMESTAMPS (1:10:00)
00:00 🚀 Introduction & Session Overview
02:00 📦 JavaScript Objects Introduction
05:00 🏗️ Creating Objects
08:00 🎯 Accessing Object Properties
10:00 ➕ Adding & Updating Properties
12:00 ❌ Deleting Properties
14:00 📋 Nested Objects
18:00 🔄 Object References & Memory Concepts
21:00 🪞 Shallow Copy Explained
25:00 📑 Deep Copy Explained
29:00 ⚡ Spread Operator (...)
33:00 🏗️ Object.create()
36:00 🔗 Object.assign()
39:00 🔒 Object.seal()
42:00 🧊 Object.freeze()
45:00 ✅ Object.isFrozen()
47:00 🔍 Object.isSealed()
49:00 🎯 Object.is()
51:00 🏠 hasOwnProperty()
53:00 🔑 Object.keys()
55:00 📄 Object.values()
57:00 📚 Object.entries()
59:00 🌐 navigator.onLine
60:30 🔋 navigator.getBattery()
62:00 📶 navigator.bluetooth
63:30 💻 navigator.userAgent
65:00 🖥️ navigator.appName & Browser Information
66:30 🐞 Debugging Objects & Browser APIs
68:00 🧪 Real-Time Examples & Interview Questions
70:00 ✅ Session Complete
🎯 Key Takeaway:
Objects are the backbone of JavaScript applications. Understanding object creation, copying, manipulation, browser navigator APIs, and debugging techniques helps developers build scalable, maintainable, and production-ready applications.
Before today:
❌ I only used objects to store data.
After today:
✅ I can create, clone, freeze, seal, inspect, manipulate objects, access browser information, and debug applications like a JavaScript developer.
Quick Code You Can Run Right Now:
const employee = {
id: 101,
name: "Sagar",
skills: ["JavaScript", "React", ".NET"]
};
const copiedEmployee = { ...employee };
console.log(Object.keys(employee));
console.log(Object.values(employee));
console.log(navigator.onLine);
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