Microsoft Frontend Interview Question | Convert RGB to HEX
Welcome to Day 25 of the JavaScript Machine Coding Challenge Series! 🚀
In today’s challenge, we’ll solve a popular frontend interview question —
👉 How to convert RGB to HEX using JavaScript?
You’ll learn step-by-step:
✅ What RGB and HEX formats mean
✅ How to write a reusable rgbToHex(r, g, b) function
✅ How to handle invalid or out-of-range inputs
✅ Clean and optimized solution for real-world coding rounds
🧩 Example:
rgbToHex(255, 255, 255); // #FFFFFF
rgbToHex(0, 0, 0); // #000000
rgbToHex(186, 218, 85); // #BADA55
This question is commonly asked in JavaScript frontend interviews.
If you’re following this Machine Coding Challenge series, make sure to like, share, and subscribe for the next day’s problem! 💪
📅 Series: JavaScript Machine Coding Challenge (Day 25)
📺 Channel: @FullStackTau