Very important Concepts for Every javascript Developer to ace their Frontend interviews –
1. JavaScript Engines: Learn about the engines that execute JavaScript, such as V8 (used in Chrome).
2. Value Types and Reference Types: Understand the distinction between primitive types and objects.
3. Primitive Types: Know the fundamental data types like string, number, boolean, null, undefined.
4. Expression vs Statement: Distinguish between expressions and statements in JavaScript code.
5. Function Scope, Block Scope, and Lexical Scope: Grasp how scopes work in JavaScript.
6. Message Queue and Event Loop: Understand asynchronous JavaScript through the event loop.
7. setTimeout, setInterval, and requestAnimationFrame: Manage time-related operations effectively.
8. == vs === vs typeof: Differentiate between loose equality, strict equality, and the typeof operator.
9. Call Stack: Learn how the call stack manages function calls and execution flow.
10. IIFE, Modules, and Namespaces: Organize and encapsulate code using Immediately Invoked Function Expressions and modularization.
11. Bitwise Operators, Type Arrays, and Array Buffers: Handle binary data efficiently with low-level operations.
12. DOM and Layout Trees: Understand the Document Object Model for web development.
13. Factory Functions and Classes: Explore different approaches for creating objects.
14. this, call, apply, and bind: Master context management and the ‘this’ keyword.
15. new, Constructor, instance of, and Instances: Grasp object instantiation and constructor functions.
16. Prototypal Nature: Utilize prototype-based inheritance for code efficiency.
17. Object.create and Object.assign: Learn to create and manipulate objects effectively.
18. map, reduce, filter: Master array methods for functional programming.
19. Pure Functions, Side Effects, State Mutation, and Event Propagation: Write clean and maintainable code.
20. Closures: Manage variable scope and create modular code.
21. High Order Functions: Use higher-order functions for concise and expressive code.
22. Recursion: Solve problems efficiently with recursive functions.
23. Collections and Generators: Understand data structures and generators for data manipulation.
24. Asynchronous Operations: Handle asynchronous operations with callbacks, promise-based patterns and async/await.
25. Partial Applications, Currying, Compose, and Pipe: Explore functional programming concepts for code modularity.
