Angular DevTools Integration Challenge

This challenge focuses on integrating Angular DevTools into an existing Angular application. By leveraging the DevTools, developers can gain deep insights into their application's component tree, state, and performance, significantly aiding in debugging and optimization. Your task is to set up and demonstrate basic integration.

Problem Description

You are tasked with integrating the Angular DevTools browser extension into a provided sample Angular application. This integration should allow you to:

1. Inspect the Component Tree: View the hierarchy of your Angular components within the DevTools.
2. Inspect Component State: Examine and, where applicable, modify the properties of individual components.
3. Monitor Change Detection: Observe when and how change detection is triggered for your components.

Key Requirements:

• The Angular application should be runnable in a browser.
• The Angular DevTools browser extension should be installed and accessible.
• You should demonstrate the ability to inspect at least one component's state.
• You should be able to see at least one change detection event occur within the DevTools.

Expected Behavior:

When the Angular application is running in a browser with the Angular DevTools extension installed, you should be able to open the DevTools and see your application's components listed in the "Components" tab. Clicking on a component should reveal its properties in a separate panel. The "Profiler" tab should show activity related to your application, including change detection cycles.

Edge Cases to Consider:

• Application Complexity: The provided sample application will have a moderate level of complexity, involving nested components and data binding.
• Different Browser Environments: While the primary focus is on Chrome/Chromium-based browsers, consider general Angular DevTools usage.

Examples

Since this challenge is about setup and demonstration rather than algorithmic input/output, the "examples" will describe the setup and expected observation.

Example 1: Basic Component Inspection

Setup:

1. Run the provided Angular application (e.g., ng serve).
2. Open the application in a browser (e.g., Chrome).
3. Ensure the Angular DevTools extension is installed and enabled.
4. Open the browser's developer tools and navigate to the "Angular" tab.

Expected Observation: In the "Components" tab of the Angular DevTools, you will see a tree structure representing the application's components. If there's a component named UserProfileComponent, you should be able to select it and see its public properties (e.g., userName, userAge) displayed in a properties panel.

Explanation: This demonstrates the core functionality of inspecting the component tree and viewing component state.

Example 2: Observing Change Detection

Setup:

1. Follow the setup steps from Example 1.
2. Navigate to the "Profiler" tab within the Angular DevTools.
3. Interact with the application in a way that is expected to trigger a change detection cycle (e.g., clicking a button that updates a displayed value).

Expected Observation: In the "Profiler" tab, you should see a recording of the profiling session. Within this recording, there will be markers or entries indicating when change detection cycles occurred. You should be able to see the duration of these cycles and potentially which components were involved.

Explanation: This showcases how Angular DevTools can help in understanding the performance aspects of your application, specifically focusing on change detection.

Constraints

• The solution must use TypeScript.
• The provided Angular application will be a standard Angular CLI project.
• No external libraries beyond Angular core and its ecosystem are permitted for the integration itself, beyond the browser extension.
• The DevTools integration should be demonstrable within a typical development environment.

Notes

• The primary goal is to successfully set up the environment and observe the DevTools in action. The provided Angular application will be pre-configured to be compatible with DevTools.
• You do not need to modify the provided Angular application's code significantly to achieve the integration; the task is more about ensuring the environment is set up correctly and understanding how to use the DevTools.
• Focus on the process of enabling and using the Angular DevTools. What steps are involved? What do you observe?
• Consider writing a brief (e.g., one-paragraph) summary of your observations and any insights gained from using the DevTools on the sample application. This will be part of your submission.