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angular javascript interview questions with talent titan.pptx
- 1. Deep Dive- angular javascript interview questions
- 2. Understanding the Core Components Components Building blocks of Angular applications, encapsulating logic and presentation. Modules Organize and manage related code, grouping components, services, and other modules. Services Reusable logic, facilitating data access, communication, and other application-wide tasks. Directives Modify HTML elements and attributes, enhancing functionality and behavior.
- 3. What is Angular? Framework A structural framework that provides a foundation for building web applications. Open-Source Free to use and contribute to, fostering a collaborative community. JavaScript A powerful language that enables dynamic and interactive features. Dynamic Enables the creation of interactive and user- friendly web applications.
- 4. Key Angular Concepts Data Binding Connects data from the component to the view, keeping them synchronized. Dependency Injection A powerful pattern for managing dependencies between components and services. Templates HTML-based templates, dynamically rendering content based on component data. Routing Defines how users navigate through the application, enabling multi-page functionality.
- 5. Angular CLI and Project Structure src Contains the application's source code, including components, modules, and services. app Houses the core logic and components of your application. assets Stores static assets such as images, CSS files, and fonts. node_modules Contains all the dependencies and packages used by the project.
- 6. Component Lifecycle and Change Detection 1 ngOnInit Triggered after the component is initialized and data bindings are complete. 2 ngOnChanges Triggered whenever input properties of the component change. 3 ngOnDestroy Triggered just before the component is destroyed, allowing cleanup tasks.
- 7. Data Binding in Angular Interpolation Displays data from the component within the template using curly braces. Property Binding Sets the value of a property on an element based on a component property. Event Binding Reacts to events triggered on the DOM, like button clicks or form submissions. Two-Way Binding Synchronizes data between the component and the view, allowing real-time updates.
- 8. Angular Routing 1 Router The core of Angular routing, handling navigation and routing logic. 2 Routes Define the paths and corresponding components for different pages. 3 RouterLink Directive that creates links that trigger navigation to specific routes. 4 RouterOutlet Directive that acts as a placeholder for rendering the appropriate component based on the current route.
- 9. Advanced Angular Techniques 1 Forms Angular's powerful form system provides validation, data binding, and event handling. 2 Services Reusable logic, facilitating data access, communication, and other application-wide tasks. 3 Directives Modify HTML elements and attributes, enhancing functionality and behavior. 4 RxJS Library for reactive programming, enabling asynchronous and observable data handling.
- 10. Best Practices for Angular Development 1 Code Style Adhere to consistent coding standards for readability and maintainability. 2 Testing Implement thorough unit tests and end-to-end tests to ensure code quality. 3 Performance Optimize application performance for faster load times and a smooth user experience. 4 Security Prioritize application security by implementing appropriate measures against vulnerabilities.