Mastering JavaScript Array Basics with map, filter, reduce

Day 10 of My JavaScript Journey 🚀 Today, I learned about arrays in JavaScript. An array is a data structure used to store multiple values in a single variable. You can think of it as a container that holds different types of data. Example: let items = ["book", 10, true]; Arrays are written using square brackets [] and can even contain other arrays. I also learned some basic array operations: • push(): It adds a value to the end • pop(): It removes the last value • unshift(): It adds a value to the beginning • shift(): It removes the first value • indexOf(): It finds the position of a value • includes(): It checks if a value exists. One key thing I understood: Arrays make it easy to store, access, and manage multiple values efficiently. Key takeaway: Arrays are essential for handling collections of data in JavaScript. #JavaScript #WebDevelopment #LearningInPublic #100DaysOfCode

Day 11 of My JavaScript Journey 🚀 Today, I learned about objects in JavaScript. Objects are used to store data in key-value pairs, making it easier to organize related information. Example: const user = { name: "John", age: 25 }; Objects are written using curly brackets {}. I also learned how to retrieve and update data in objects using: • Dot notation: user.name • Bracket notation: user["name"] Both methods allow you to access and modify object properties. One thing I realized: Objects are powerful for structuring data in a more meaningful way. Key takeaway: Understanding objects is essential for working with real-world data in JavaScript. #JavaScript #WebDevelopment #LearningInPublic #100DaysOfCode

Day 1 Js Depth Topic: JavaScript Execution context. - Execution Context is a special environment created when JavaScript code is evaluated and executed. There are two types of execution content: 1. GEC (Global execution context) - everything written outside the functions are are stored here for execution -like: 1.variable 2.function test 2. FEC (Function execution context) - created when functions are called for execution - with this we can call the js function before it even exists. - it is like calling your own box 🎁. finally it contains: 1. Variables 2. Functions 3. Scope 4. this keyword next will be the Scope chain 😄 stay tune with me in this journey. if I write anything wrong you can correct me. here to learn more

🚀 Understanding Factory Functions in JavaScript Ever felt confused using constructors and the new keyword? 🤔 That’s where Factory Functions make life easier! 👉 A Factory Function is simply a function that creates and returns objects. 💡 Why use Factory Functions? ✔️ No need for new keyword ✔️ Easy to understand (perfect for beginners) ✔️ Avoids this confusion ✔️ Helps in writing clean and reusable code ✔️ Supports data hiding using closures 🧠 Example: function createUser(name, age) { return { name, age, greet() { console.log("Hello " + name); } }; } const user = createUser("Sushant", 21); user.greet(); ⚠️ One downside: Methods are not shared (can use more memory) 🎯 Conclusion: Factory Functions are a great way to start writing clean and maintainable JavaScript code without complexity. #JavaScript #WebDevelopment #FrontendDeveloper #CodingJourney #LearnToCode #100DaysOfCode

Maps and Sets in JavaScript: A Beginner-Friendly Guide JavaScript provides many ways to store and manage data. While Arrays and Objects are widely used, Maps and Sets are two powerful yet often overlooked data structures. Read more → https://lnkd.in/dwk3yBJn #TheCampusCoders #Tech #Developers #WebDev

Maps and Sets in JavaScript: A Beginner-Friendly Guide JavaScript provides many ways to store and manage data. While Arrays and Objects are widely used, Maps and Sets are two powerful yet often overlooked data structures. Read more → https://lnkd.in/dwk3yBJn #TheCampusCoders #Tech #Developers #WebDev

Maps and Sets in JavaScript: A Beginner-Friendly Guide JavaScript provides many ways to store and manage data. While Arrays and Objects are widely used, Maps and Sets are two powerful yet often overlooked data structures. Read more → https://lnkd.in/dwk3yBJn #TheCampusCoders #Tech #Developers #WebDev

Maps and Sets in JavaScript: A Beginner-Friendly Guide JavaScript provides many ways to store and manage data. While Arrays and Objects are widely used, Maps and Sets are two powerful yet often overlooked data structures. Read more → https://lnkd.in/dwk3yBJn #TheCampusCoders #Tech #Developers #WebDev

Maps and Sets in JavaScript: A Beginner-Friendly Guide JavaScript provides many ways to store and manage data. While Arrays and Objects are widely used, Maps and Sets are two powerful yet often overlooked data structures. Read more → https://lnkd.in/dwk3yBJn #TheCampusCoders #Tech #Developers #WebDev

Maps and Sets in JavaScript: A Beginner-Friendly Guide JavaScript provides many ways to store and manage data. While Arrays and Objects are widely used, Maps and Sets are two powerful yet often overlooked data structures. Read more → https://lnkd.in/dwk3yBJn #TheCampusCoders #Tech #Developers #WebDev