Mastering UI & DOM Interviews: Boilerplate Code & Component Challenges (Part 2)

Are you preparing for front-end developer interviews at top tech companies?


This video is Part 2 in a series designed to help you master common UI & DOM challenges at top tech companies like Meta and Google.

You'll learn how to use a simple, yet powerful, JavaScript boilerplate to build interactive UI components from scratch.

This approach will help you impress interviewers by demonstrating your understanding of:
● State Management: Learn how to structure your components to effectively manage and update UI state.
● Rendering: See how to translate component state into dynamic and interactive user interfaces.
● Event Handling: Discover techniques for capturing and responding to user interactions within your components.


We'll cover a range of practical examples, starting with a basic counter button and progressing to more complex components like to-do lists, tab navigations, and more.

By the end of this series, you'll have the skills and confidence to tackle a wide variety of UI challenges in your interviews.

Here are some of the UI and DOM manipulation concepts and challenges you'll learn about in this video:
● DOM Manipulation and Event Handling: Learn how to add new list items to unordered lists using JavaScript in response to user clicks.
● Asynchronous JavaScript: Understand the differences between setTimeout and setInterval, and how to use them effectively.
● Performance Optimization: Explore strategies to improve the performance of web pages with extensive DOM structures.

This video will provide you with valuable insights and practical skills to excel in your UI and DOM interviews. Be sure to subscribe and stay tuned for Part 3, where we'll tackle even more challenging UI components and interview scenarios.

Resources:

If you ask to copy-paste boilerplate for a component during an interview, a good starting point would be a minimal setup using the Class + Data Attribute pattern. Here's a boilerplate that follows the modular approach:

UI & DOM Component Boilerplate
https://davidprorok.notion.site/UI-DO...

Here are some coding challenges designed to help you apply the boilerplate code provided earlier. Each challenge focuses on a fundamental UI concept or DOM manipulation problem, similar to what you might encounter in interviews.

UI & DOM Interview Component Example Problems
https://davidprorok.notion.site/UI-DO...

Top tech companies like Meta and Google focus on assessing a candidate's proficiency in UI development and DOM manipulation through a variety of interview questions. These questions typically cover fundamental concepts, practical coding challenges, and problem-solving abilities. Here are some examples:

UI & DOM Interview Question Examples
https://davidprorok.notion.site/UI-DO...


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