28/10/2026
Can you find the First Non-Repeating Character in a string? 🤔
💻 Input: “aabbcde”
✅ Output: “c”
Learn two approaches:
🚀 Frequency Map — O(n)
🐢 Nested Loops — O(n²)
Interview mein aise coding questions ki practice zaroor karo! 💯
Follow Mohit Decodes for more JavaScript interview questions and coding tips! 🔥