N+A Frontend Developer Intern Interview Questions and Answers

Codility consists of two Angular questions: the first involves creating a form, while the second pertains to developing a searchable input field, along with one DSA coding question.

Q1. How do you build form validations in angular
Ans. 
Form validations in Angular are built using Angular forms and validators.
• Use Angular forms to create form controls and group them together

• Apply built-in validators like required, minlength, maxlength, pattern, etc.

• Create custom validators for complex validation requirements

• Display error messages based on validation status

• Use reactive forms for more control and flexibility
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Q2. How will you create reusable loading logic in angular
Ans. 
Create a service with a loading state and methods to show/hide loading indicators
• Create a loading service with a boolean property 'isLoading'

• Add methods in the service to set isLoading to true/false

• Inject the loading service in components where loading indicators are needed
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Q3. JS questions which includes closure and promise.race
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Q1. What are the hooks you used?
Ans. 
I have used useState, useEffect, useContext, and useRef hooks in my projects.
• useState - for managing state in functional components

• useEffect - for handling side effects in functional components

• useContext - for accessing context in functional components

• useRef - for accessing DOM elements or storing mutable values
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Q2. Complete details of last project worked
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