Fullstack Developer

Design a JavaScript function to fetch user information from a database using an asynchronous API call? 

The function should:

1. Accept a unique user identifier as input.

2. Use the provided API to retrieve the user's data from the database.

3. Resolve the promise with the user's information if the API call is successful.

4. Reject the promise with an error message if the API call fails or if the user does not exist in the database.

Implement a JavaScript function to validate a form when it is submitted.(Link)

The function should:

1. Accept the form element as a parameter.

2. Check if the required fields are filled out correctly.

3. Prevent the form from submitting if validation fails, and display error messages to the user.

Implement a React component to handle form validation upon submission.(Link) 

The component should:

1. Accept the form data as props.

1.Can you describe a challenging project you've worked on in the past and how you overcame obstacles?

2.Can you discuss a time when you had to prioritize tasks or manage your time effectively to meet deadlines?

3.How do you handle constructive feedback or criticism from peers or managers?

4.Where do you see yourself in the next 3-5 years, and how does this position at Testbook fit into your long-term career plans?

5.Can you describe a situation where you faced a disagreement or conflict with a team member? How did you handle it?