Angular Interview Practice Exam 2025 - Free Angular Practice Questions and Study Guide

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Which event can trigger change detection in Angular applications?

File downloads

Setting a global CSS style

User interactions

Change detection in Angular applications is primarily triggered by user interactions. This includes actions such as clicking a button, typing in a form field, or any event that modifies the state of the application. When a user interacts with the application, Angular checks for changes in the data model and updates the view accordingly, ensuring that the UI reflects the current state of the application.

While other options may relate to the application's behavior or layout, they do not inherently trigger Angular's change detection process. File downloads and setting global CSS styles can change how an application looks or behaves, but they do not affect the underlying data model that Angular monitors. Similarly, a page refresh resets the application state but does not actively cause change detection in the context of data binding and DOM updates that Angular automatically manages during user interactions.

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Page refreshes

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