Ace Your JavaScript Coding Interview: 100+ Practice Questions & Solutions

Start your journey with a comprehensive overview of the course, exploring the importance of effective JavaScript coding interview preparation. You'll learn valuable debugging techniques and problem-solving strategies to guide your approach. Dive into basic JavaScript concepts with practice questions like printing "Hello, World!" and performing simple arithmetic operations. You'll also work through challenges involving mathematical operations, including square roots, areas, quadratic equations, and more.

Delve into the essential fundamentals of JavaScript, covering topics like data types, variables, operators, and control flow. This section includes practice questions on converting units, generating random numbers, and working with conditional statements. Explore number theory concepts like prime numbers, factorials, and the Fibonacci sequence. You'll also practice building functions for common tasks and gain a deeper understanding of recursion.

Master string manipulation techniques with practice questions covering tasks like reversing strings, checking for palindromes, sorting words alphabetically, and substituting characters. Learn to count character occurrences and format strings for currency display. Explore techniques for creating multiline strings and manipulating text with methods like trimming, substring extraction, and line break replacement.

Dive into object-oriented programming concepts in JavaScript, focusing on object creation, property access, and manipulation. You'll work through practice questions involving object cloning, merging objects, and iterating through object properties. Explore techniques for checking for key presence, adding new key-value pairs, and converting objects to strings.

Gain proficiency in array manipulation with practice questions covering array insertion, deletion, and searching. Explore techniques for checking array contents, clearing array elements, and removing duplicate values. You'll also learn to merge arrays, sort arrays of objects by specific properties, and create multi-dimensional arrays.

Advance your JavaScript skills with practice questions involving concepts like closures, promises, and asynchronous programming. Explore advanced topics like validating email addresses, working with constants, and understanding function overloading. You'll also gain experience with JavaScript's built-in functions, including setTimeout and working with regular expressions for string manipulation.

Deepen your understanding of data structures and algorithms commonly used in JavaScript. You'll practice implementing common data structures like stacks and queues. Explore algorithms like sorting, searching, and traversing data structures. This section helps you build a solid foundation for tackling more complex coding interview challenges.

Explore the application of JavaScript in web development with practice questions involving DOM manipulation, event handling, and working with the browser's built-in APIs. Learn to retrieve the current webpage URL, validate user input, and work with timers for creating interactive elements. You'll gain a practical understanding of how JavaScript enhances web applications.

Refine your debugging skills and learn to effectively identify and resolve errors in your code. Explore best practices for writing clean, efficient, and maintainable JavaScript code. This section helps you develop a comprehensive understanding of writing high-quality code that adheres to industry standards and best practices.