tCognition Interview Questions, Process, and Tips

Q1. What are the pipes in angular
Ans. 
Pipes in Angular are used for transforming data in templates.
• Pipes are used to format data before displaying it in the view

• They can be used for currency, date, uppercase/lowercase transformations, etc.

• Pipes can be chained together for multiple transformations

• Custom pipes can also be created for specific data formatting needs
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Q2. What is promises and observable? Differencd
Ans. 
Promises and Observables are used for handling asynchronous operations in Angular. Promises are used for a single value while Observables are used for multiple values over time.
• Promises are used for handling a single asynchronous operation and can only be resolved once.

• Observables are used for handling multiple asynchronous operations and can emit multiple values over time.

• Promises use .then() to handle the resolved va...read more
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Q3. What is Service and DI in angular
Ans. 
Service is a reusable piece of code that can be injected into components, while DI (Dependency Injection) is a design pattern used to manage dependencies between objects.
• Services in Angular are used to encapsulate logic and data that can be shared across components.

• Dependency Injection in Angular is a way to provide dependencies to a class without creating them within the class itself.

• DI helps in making components more...read more
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Q4. What is ngModule
Ans. 
NgModule is a decorator that defines a module in Angular application.
• NgModule is used to define a module in Angular application.

• It allows you to group related components, directives, pipes, and services together.

• NgModule can import other modules, making their components, directives, and pipes available to your application.

• It can also export components, directives, and pipes for use in other modules.

• NgModule can provide...read more
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Email writing and group Discussion

Q1. As i was a fresher. They asked me questions related to HR (recruitment & Selection) also my project was with the same topic so asked similar questions related to HR and about my self
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