SplendorNet Technologies Angular Frontend Developer Interview Questions, Process, and Tips

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. Scenario based questions
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Q2. What is lazy loading?
Ans. 
Lazy loading is a technique used in web development to defer loading non-essential resources until they are needed.
• Lazy loading helps improve page load times by only loading necessary resources initially.

• It is commonly used in Angular applications to load modules, components, or routes on demand.

• Lazy loading can be implemented using Angular's loadChildren property in the routing configuration.
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Q3. What is switchMap?
Ans. 
switchMap is an operator in RxJS that projects each source value to an Observable which is merged in the output Observable.
• switchMap is used to switch to a new Observable whenever the source Observable emits a new value.

• It cancels the previous Observable subscription when a new value is emitted.

• Example: source$.pipe(switchMap(value => new Observable(value)))
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Q4. Observables and promises
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Q5. Difference between ?? and ?:
Ans. 
?? is the nullish coalescing operator, while ? is the optional chaining operator in Angular.
• ?? is used to provide a default value when a variable is null or undefined.

• ? is used to safely access nested properties of an object without causing errors if a property is null or undefined.
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Q6. What is services, modules, decorators, directive?
Ans. 
Services, modules, decorators, and directives are key concepts in Angular development.
• Services: Reusable code that can be injected into components to provide specific functionality.

• Modules: Containers for different parts of an Angular application, including components, services, and directives.

• Decorators: Functions that modify classes or properties in Angular, used for adding metadata or behavior to components.

• Directiv...read more
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Q7. What is multicasting ?
Ans. 
Multicasting is the process of sending data from one source to multiple destinations simultaneously.
• In multicasting, a single sender sends data to a group of receivers at the same time.

• It is commonly used in streaming services where one server sends data to multiple clients.

• Multicasting is more efficient than unicasting (one-to-one communication) when sending data to multiple recipients.
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Q8. What is RxJS ?
Ans. 
RxJS is a library for reactive programming using Observables to handle asynchronous data streams.
• RxJS stands for Reactive Extensions for JavaScript.

• It allows you to work with asynchronous data streams and events.

• Operators like map, filter, mergeMap, switchMap, etc., can be used to manipulate and combine streams.

• Example: Using RxJS to handle HTTP requests in Angular applications.
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An aptitude test is an exam used to determine an individual's skill or propensity to succeed in a given activity. Aptitude tests assume that individuals have inherent strengths and weaknesses and have a natural inclination toward success or failure in specific areas based on their innate characteristics

A Group Test consists of tests that can be administered to a large group of people at one time. This is opposite of an Individual Test, which is administered to one person at a time, typically by someone receiving payment to administer the test.

Q1. This is an initial screening to ensure that you are the right candidate for the role.The HR interview incudes questions such as general information about previous job roles, core skills, qualifications, we...read more
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Q2. 1. Tell me something about yourself in brief 2. What your strengths and weakness 3. You are from civil background? Why should be applied for IT feild,or Coding
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Q3. 2. What your strengths and weakness
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Q4. 3. You are from Civil background? Why should be applied for IT feild or Coding
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Q1. Write an API to send data to particular end point using any langauge
Ans. 
API to send data to a specific endpoint using any language
• Choose a programming language that supports HTTP requests

• Create a function to send data to the endpoint using HTTP POST method

• Include necessary headers and parameters in the request

• Handle any errors or exceptions that may occur
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Q1. OOPS concepts, real time coding questions , Questions on web development
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Q1. About internships and projects
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