Скачать или смотреть How to Skip Routes in Angular to Improve User Navigation

Learn how to skip routes in Angular applications to prevent unwanted back navigation, ensuring a seamless user experience during examinations.
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This video is based on the question https://stackoverflow.com/q/66476018/ asked by the user 'Kunal Gurav' ( https://stackoverflow.com/u/11747374/ ) and on the answer https://stackoverflow.com/a/66536696/ provided by the user 'Naman Jain' ( https://stackoverflow.com/u/13298927/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Skip Routes in Angular to Improve User Navigation

The Problem: Navigating Back on an Examination Website

If you've ever developed an Angular application, you might have faced a challenge like this one: How can you manage routing to ensure that users navigate smoothly through your application? Let's examine a specific scenario related to an examination website.

In this web application, when a user registers, they gain access to a list of exams. As they progress through the exam questions one at a time, the ability to navigate back can lead to significant issues. If a user clicks the browser back button or tries to return to a previous question, they may alter their answers and potentially achieve a score they shouldn't, compromising the integrity of the examination process.

So, the question arises: How can we restrict this back navigation to preserve the exam flow?

The Solution: Using Navigation to Control User Flow

To ensure that a user is unable to go back to answer questions after seeing the results, we can implement a simple yet effective routing mechanism. Here's how you can do it:

Step 1: Utilize Router Navigation with skipLocationChange

Angular provides powerful routing functionalities that can be leveraged to skip certain routes. Here’s a recommended approach using Angular's Router:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Code

navigateByUrl: This method of the Angular Router allows you to navigate to a particular URL. In this case, we are specifying the route for the questions.

{ skipLocationChange: true }: This option prevents the router from adding a new entry in the browser's history stack. This means that users won’t be able to navigate back to the questions directly after they have reached the results screen.

then() callback: After successfully navigating to the question, navigate to the results screen. Using replaceUrl: true ensures that the previous URL (questions) is not stored in history.

Step 2: Ensure Proper User Experience

Testing Navigation: Make sure to extensively test the navigation flow to confirm that when users click back from the results, they are redirected to the exams list instead of previous questions.

User Confirmation: Depending on your application needs, consider adding user prompts before navigating away from the current screen. This can be especially helpful if users might want to review or change their answers.

Conclusion

By implementing the above solution, you can guide users through your examination without allowing them to backtrack and alter their responses. This approach not only secures the integrity of the examination process but also enhances the overall user experience by providing a straightforward navigation flow.

If you have any questions or need further clarification on implementing this routing behavior in Angular, feel free to reach out!

By addressing the navigation challenge within Angular, you enhance your application's reliability and maintain the integrity of user interactions.