Angular Interview Practice

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What does the command ng e2e do?

Runs end-to-end testing on the Angular application
Generates an end-to-end documentation
End-to-end configurations are checked
Sets up a new end-to-end environment

The correct answer is: Runs end-to-end testing on the Angular application

The command ng e2e is specifically designed to run end-to-end tests on an Angular application. These tests are crucial because they simulate real user scenarios and verify that the application functions as expected from the user's perspective. When executed, ng e2e typically launches a testing framework (often Protractor) to interact with the application, navigate through it, and assert that various features work correctly based on predefined user actions. End-to-end testing is essential in ensuring that the various components of an application integrate well together, and it helps in identifying issues that may not be apparent during unit or integration testing. This type of testing can cover various user flows and ensure that changes in the application do not introduce new bugs. The other options do not accurately represent the functionality of the ng e2e command. Generating documentation, checking configurations, or setting up environments are not the primary purposes of this command. Instead, ng e2e focuses solely on executing tests to validate the overall functionality of the Angular application in a production-like environment.