💡 Strengthen problem-solving skills, avoid being easily replaced by AI, target $1M annual salary!

• These knowledge is not only used to prepare for interviews, but also to strengthen your problem-solving skills, Avoid being easily replaced by AI.
• Former TikTok interviewer's step-by-step explanation:Not just what to expect, but why these questions are asked.
• Comprehensive coverage:Beyond free JS concepts, includes: Frontend performance optimization, React concepts, HTTP, network security, CSS... and other essential interview topics.

About Bruce Frontend

• Bruce has worked as an interviewer and frontend engineer at TikTok, and has also worked as a frontend engineer at Binance, 17Live, and Yahoo.
• JavaScript Beginner CourseHighly acclaimed with over 460,000 views.
• YouTube 20,000+ subscribers.
• Join our community of over 4000+ people on Line Communityto chat and connect with other engineers.

🌟 Past Course Reviews

O

@DoThatDont

⭐️ ⭐️ ⭐️ ⭐️ ⭐️

大推！

我看過這麼多中英教學 這是最有料的，這含金量不是ai什麼可以做到的，3800還包含這麼多其他內容 必買！大推

廖崇幃

⭐️ ⭐️ ⭐️ ⭐️ ⭐️

少數上完的線上課程

我一開始是在 Youtube 上認識到老師的頻道，很喜歡 Youtube 上的教學風格，後來又看到老師在平台上開的課程內容很完整，所以就決定贊助一下。我自己買了三堂課，當作感謝老師在 Youtube 上無私的奉獻!!小小許願，希望老師有空可以再開直播聊聊前端工作的生態!

Alec Wang

⭐️ ⭐️ ⭐️ ⭐️ ⭐️

我唯一聽懂看懂的

謝謝 Bruce，在此之前其實找過蠻多 TypeScript 教學，不管是免費、付費的、影音的、文字的，你這門門真的是我唯一看懂的，希望未來我可以真正開始用 TypeScript 進行開發，謝謝～

O

@mmmchoclate5317

⭐️ ⭐️ ⭐️ ⭐️ ⭐️

收穫很多

收穫很多，讓原本後端實習生找到一線生機QQQ(被迫下海寫前端)

@SLApple-hp9ed

⭐️ ⭐️ ⭐️ ⭐️ ⭐️

不得不按個讚

不得不按個讚, 有步驟講得很清楚，雖然我會JavaScript 很久, 但是也忘光光. 迅速看一次 JS 又回神了回來.

@沈侒逸

⭐️ ⭐️ ⭐️ ⭐️ ⭐️

你的講解好棒

你的講解好棒😍😍😍😍我找到目前最棒的程式語言講解、超好理解，不會拖泥帶水、收音也很好，一整個學習起來都很舒服

@Copernicus_Song

⭐️ ⭐️ ⭐️ ⭐️ ⭐️

太感謝了

很好的入門webpack的教材！太感謝了，已經購入布魯斯的React課程拉，期待開課～！這邊也能多多更新就更完美了XD 再次謝謝！！

🎯 Target Audience

• Those wanting to advance from Junior to Senior frontend engineer.
• Those preparing for frontend technical interviews.
• Those wanting to strengthen frontend fundamentals and avoid pitfalls.
• Those without a mentor who need guidance.

📝 Curriculum

(Free Preview) Frontend Interview Essentials - JavaScript Interview Concepts

• JS Interview Concepts - Variables const, let, var and Hoisting
• JS Interview Concepts - Strict vs Loose Comparison in JS
• JS Interview Concepts - Event Loop and Asynchronous Operations
• JS Interview Concepts - JavaScript Scope
• JS Interview Concepts - JavaScript Closures
• JS Interview Concepts - Map and Set Data Structures
• JS Interview Concepts - JS new, Prototype Chain and Class Implementation
• JS Interview Concepts - Deep Dive into JavaScript this Keyword
• JS Interview Concepts - Deep Dive into Promise and Async/Await
• JS Interview Concepts - Deep Dive into Deep Copy and Shallow Copy
• JS Interview Concepts - Deep Dive into JavaScript Module Systems

Frontend Interview Essentials - Performance Optimization Part 1 'Page Loading' (TC/SC/EN subtitles CC)

• Performance Optimization | Page Loading - Explaining Web Rendering Process and CRP Path
• Performance Optimization | Page Loading - Script Position and defer, async Attributes
• Performance Optimization | Page Loading - Deep Dive into SSR vs SSG vs CSR
• Performance Optimization | Page Loading - Deep Dive into Lazy Loading
• Performance Optimization | Page Loading - Deep Dive into Code Splitting
• Performance Optimization | Page Loading - Understanding Prefetch & Preload
• Performance Optimization | Page Loading - What is CDN? Why Do We Need CDN
• Performance Optimization | Page Loading - Benefits of Utility First CSS

Frontend Interview Essentials - Performance Optimization Part 2 'User Interaction'

• Performance Optimization | User Interaction - Throttle and Debounce
• Performance Optimization | User Interaction - Caching Strategies (Web Storage & HTTP Cache)
• Performance Optimization | User Interaction - will-change Hardware Accelerated Animation
• Performance Optimization | User Interaction - RequestAnimationFrame to Prevent Frame Drops
• Performance Optimization | User Interaction - React Rendering Optimization

Frontend Interview Essentials - React Interview Concepts

• React Interview Concepts - Hook Principles and Why Hook Call Restrictions Exist
• React Interview Concepts - useRef Usage and Implementation Principles
• React Interview Concepts - useEffect Execution Timing
• React Interview Concepts - Choosing Between useEffect and useLayoutEffect
• React Interview Concepts - Explaining React Key Purpose
• React Interview Concepts - What are Server Components & Hydration?
• React Interview Concepts - State Management Framework Selection and Reasoning
• React Interview Concepts - Virtual DOM and React Fiber

Frontend Interview Essentials - HTML, CSS, Browser Must-Know Concepts

• HTML, CSS, Browser Must-Know - Why Avoid DIV Abuse? Tag Misuse Issues
• HTML, CSS, Browser Must-Know - Box Model and Display
• HTML, CSS, Browser Must-Know - CSS Selector Specificity
• HTML, CSS, Browser Must-Know - Flexbox Interview Key Points
• HTML, CSS, Browser Must-Know - Detailed Explanation of px vs rem vs em
• HTML, CSS, Browser Must-Know - Absolute Positioning and React Portal
• HTML, CSS, Browser Must-Know - Event Bubbling Principle Analysis
• HTML, CSS, Browser Must-Know - How to Properly Open External Links

Frontend Interview Essentials - HTTP Protocol, Network Security Must-Know Concepts

• Process from Entering URL to Opening Webpage
• HTTP Protocol - HTTP vs HTTPS Comparison
• HTTP Protocol - HTTP/1 vs HTTP/2 Comparison
• HTTP Protocol - Common HTTP Status Codes
• HTTP Protocol - HTTP Cookie Explained
• What is CORS? How to Solve CORS Issues?
• Network Security - XSS Attacks
• Network Security - Content Security Policy
• Network Security - CSRF Cookie Cross-Origin Attacks
• Network Security - SQL Injection Attacks