Master JavaScript Before Diving into LeetCode

Why You Should Learn JavaScript First.

If you're struggling with JavaScript, it's better to first build a solid understanding of the language before diving into LeetCode. Otherwise, you’ll feel stuck and frustrated. Here's the best approach to follow:

1. Master JavaScript Basics First

If you're focusing on MERN, your priority should be JavaScript. Instead of jumping straight into LeetCode, first, get comfortable with JavaScript fundamentals by practicing:

✅ Core JavaScript Concepts:

• Variables, Data Types, Functions, Scope
• Loops, Conditionals, Arrays, Objects
• Promises, Async/Await, Callbacks
• Closures, Hoisting, Prototypes, this keyword
• ES6+ Features (Arrow functions, Spread, Destructuring, etc.)

👉 Action Plan:

• Do hands-on coding → Code along with tutorials (Don’t just watch videos)
• Build mini JavaScript projects → Simple apps like a calculator, to-do list, or number guesser
• Practice basic coding problems → Use platforms like JS.info or Frontend Masters

2. Start Easy LeetCode Problems (2-4 Weeks)

Once you're comfortable with JS syntax, start with Easy-level problems on LeetCode:

📌 Recommended Easy LeetCode Problems:

• Arrays → Two Sum, Merge Sorted Arrays
• Strings → Reverse String, Valid Anagram
• Hashmaps → Contains Duplicate
• Basic Recursion → Fibonacci, Factorial

👉 Action Plan:

• Use LeetCode’s Top Interview 150 (Easy)
• Watch solutions in JavaScript if stuck (YouTube, NeetCode, or LeetCode discussions)
• Understand problem patterns, don’t just memorize solutions

3. Slowly Move to Medium Problems & DSAs

Once you get comfortable, level up to Recursion, Stack, Queue, Linked Lists, Trees, Graphs, and Dynamic Programming (DP).

🛠 Your Roadmap to JavaScript Mastery:

1️⃣ Master JavaScript syntax first
2️⃣ Solve easy LeetCode problems in JavaScript
3️⃣ Learn Data Structures & Algorithms
4️⃣ Gradually move to Medium/Hard problems

If you're focusing on MERN this structured approach will help you build a strong foundation without wasting time.

🚀 Do you want a daily study plan for JavaScript + LeetCode? Let me know in the comments!