Day4 - Array Unshift Method Polyfill | 75 Days Javascript Machine Coding Challenge 🔥

Опубликовано: 14 Июль 2026
на канале: FullStack Tau
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Welcome to Day 4 of the 75 Days JavaScript Machine Coding Challenge! 🚀

Learn how the JavaScript unshift() method works behind the scenes and build your own polyfill step by step 🚀.

In this video, you’ll understand:
✅ What unshift() does in JavaScript
✅ How it adds elements in front of an array
✅ Writing your own unshift polyfill from scratch
✅ Explaining the logic line by line

By the end, you’ll not only know how unshift() works but also gain confidence in writing your own polyfills for other array methods 💡.

📦 Don’t forget to check out my 75 Days of Coding Challenge playlist for more deep dives into JavaScript!
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