Backbase Angular Frontend Developer Interview Questions and Answers

Q1. Front end question/js questions
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Q2. Prepare js programming questions, settimeout questions
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Q1. Typescript questions
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Q2. Ts programming prepare
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Q1. Basic Html, Css, Life cycle hooks angular, subjects, javascript
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Regarding Subjects, Observables, Promises

Q1. Basic angular questions
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Q2. Scenario based questions
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Q3. NgRx related questions
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Q1. Angular introduction
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Q2. Explain Ag grid
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Ag Grid is a feature-rich data grid library for Angular applications.
• Ag Grid is used to display and manipulate large amounts of data in a tabular format.

• It provides various features like sorting, filtering, grouping, and aggregation.

• Ag Grid supports both simple and complex data structures, including nested data.

• It offers customizable column definitions and cell renderers for enhanced UI.

• Ag Grid supports server-side dat...read more
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Q1. Observables and promises
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Q2. Angular communications
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Q1. Angular Life cycle hooks, subject, rxjs, ngdestory
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Q2. About the project and graph library used in project.
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Q1. What is lazy loading and how can we achieve this?
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Lazy loading is a technique used to defer loading of non-essential resources until they are actually needed.
• Lazy loading helps improve the initial loading time of a web application by only loading essential resources upfront.

• In Angular, lazy loading is achieved by creating separate modules for different parts of the application and loading them on demand.

• Lazy loading can be implemented using the loadChildren property i...read more
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Q2. Difference between in constructor and NgOninit()?
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Constructor is used to initialize class properties, NgOnInit() is a lifecycle hook used to perform initialization after Angular has initialized the component.
• Constructor is a TypeScript feature used to create and initialize class properties.

• NgOnInit() is an Angular lifecycle hook that is called after Angular has initialized the component.

• Constructor is called before NgOnInit() during component initialization.

• Example: C...read more
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Q3. What is two-way binding?
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Two-way binding is a feature in Angular that allows automatic synchronization of data between the model and the view.
• Two-way binding allows changes in the model to be reflected in the view and vice versa

• It simplifies the process of updating the UI based on user input or changes in the data model

• Example: Using ngModel directive in Angular forms to bind input fields to model properties
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Q4. Difference between Observable and Promise
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Observable is a stream that allows multiple values over time, while Promise is a single value that resolves or rejects.
• Observable can handle multiple values over time, while Promise can only handle a single value.

• Observable is lazy, meaning it won't execute until it is subscribed to, while Promise is eager and executes immediately.

• Observable is cancellable, allowing you to unsubscribe, while Promise is not cancellable ...read more
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Q5. What is a pipe in angular and its types
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A pipe in Angular is used to transform data before displaying it in the template.
• Pipes are used in templates to format data before displaying it to the user

• There are built-in pipes like DatePipe, UpperCasePipe, LowerCasePipe, etc.

• Custom pipes can also be created by implementing the PipeTransform interface

• Pipes can be chained together to perform multiple transformations on the data
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