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Technical Mickey Technical Mickey is a YouTube Channel that provides Web Development and App Development knowledge.

🔥 DAY 8/100 — JavaScript Arrays 💻Another day, another JavaScript concept! 🚀Today I learned about Arrays — a simple but p...
18/09/2026

🔥 DAY 8/100 — JavaScript Arrays 💻

Another day, another JavaScript concept! 🚀

Today I learned about Arrays — a simple but powerful way to store and manage multiple values in a single variable.

📚 Today’s topics:
• Creating Arrays `[]`
• Array Index & Accessing Elements
• `.length`
• Adding & Removing Elements
• `push()` & `pop()`
• `shift()` & `unshift()`
• `slice()` & `indexOf()`
• Looping through Arrays

💡 Key takeaway:
Arrays help us store, organize, manipulate, and process collections of data efficiently.

From storing a few values to handling real-world application data — Arrays are everywhere! 🔥

Learn → Practice → Build → Share 🔁

📸 Instagram: Technical Mickey | Software Engineer
🌐 Website: www.technicalmickey.com

Day 8 complete. 92 more to go! 🚀

🔥 DAY 7/100 — JavaScript Function Parameters & Return Values 💻One week into my 100 Days of JavaScript Challenge! 🚀Today ...
17/09/2026

🔥 DAY 7/100 — JavaScript Function Parameters & Return Values 💻

One week into my 100 Days of JavaScript Challenge! 🚀

Today I went one step deeper into functions and learned how to pass data into functions and get useful results back.

📚 Today’s topics:
• Function Parameters
• Arguments
• Return Values
• Default Parameters
• Multiple Parameters
• Returning Multiple Values
• Early Return

💡 Key takeaway:
Parameters give input → Functions process → Return values give output. 🔄

Understanding this makes functions much more powerful and reusable. 💪

Learn → Practice → Build → Share 🔁

📸 Instagram: Technical Mickey | Software Engineer
🌐 Website: www.technicalmickey.com

Day 7 complete. 93 more to go! 🔥

🚀 DAY 6/100 — JavaScript Functions 💻Day 6 of my 100 Days of JavaScript Challenge is complete! 🔥Today I learned about Fun...
17/09/2026

🚀 DAY 6/100 — JavaScript Functions 💻

Day 6 of my 100 Days of JavaScript Challenge is complete! 🔥

Today I learned about Functions — reusable blocks of code that help us write cleaner, organized, and maintainable programs.

📚 Today’s topics:
• Function Declaration
• Function Expression
• Arrow Functions `=>`
• Anonymous Functions
• IIFE
• Why functions are important
• Writing reusable & clean code

💡 Key takeaway:
Write once → Reuse everywhere. ♻️

Small functions. Clean code. Better programs. 🚀

Learn → Practice → Build → Share 🔁

📸 Instagram: Technical Mickey | Software Engineer
🌐 Website: www.technicalmickey.com

Day 6 complete. 94 more to go! 🔥

13/09/2026

🔥 Can you find the Maximum Subarray Sum in O(n)?

Kadane’s Algorithm makes it simple! 🚀
The real question: Continue the subarray or start fresh? 🤔

💻 JavaScript | DSA | Coding Interview

12/09/2026

Coding isn’t just about writing code — it’s about knowing what to keep and what to filter out. 💻✨

Small logic. Clean code. Big progress. 🚀

11/09/2026

Move Zeroes in O(n) 🚀 | Two Pointer DSA Trick
Without using extra space! 🔥

The Two Pointer approach makes it super easy 🚀

💡 Time: O(n)
💾 Space: O(1)

Save this for your DSA interview prep 📌
Follow for more JavaScript DSA & Coding Interview content! 💻🔥

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