Tip 1: Don’t just watch videos; hands-on practice is important.
Tip 2: Don’t try to learn too many things, as it may be distracting.
Tip 3: Have a clear roadmap.
Tip 1: Be very clear about everything mentioned in your resume; otherwise, you may get nervous if the interviewer asks about something you have listed but do not know well.
Tip 2: Ensure that your resume is clean and well-structured, not messy.
Solution should be in JavaScript only
The interviewer asked me to solve a specific problem. I was given an array of objects and multiple tasks based on it:
| order_id | customer_id | category | amount |
| 1 | 101 | Electronics | 1200 |
| 2 | 102 | Clothing | 300 |
| 3 | 101 | Electronics | 800 |
| 4 | 103 | Electronics | 1500 |
| 5 | 101 | Clothing | 400 |
| 6 | 102 | Clothing | 700 |
Find the customers whose total order amount is greater than 1500.
Build a folder–file explorer in React where users can expand folders and open files. The structure should support nested folders and files, and clicking on a file should display its type or content.

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What is recursion?