Swift is a popular coding language for developing iOS, macOS, watchOS, and tvOS apps. Good Swift developers are highly sought after, and one of the skills required of them is working with arrays. Arrays are a fundamental data structure in Swift that allow developers to store and manipulate collections of related values efficiently. This test assesses candidates’ skills in working with Swift arrays. It provides a task description in the appropriate context and specifies the algorithms that need to be developed and the requirements to satisfy. Candidates can run their code to see if certain pre-defined inputs return the expected result. The test is scored automatically using a different set of test cases, which include more challenging corner cases. Once the test is complete, you can inspect the code of the candidate and play it back to interpret their thought process. You can also see the efficiency of the code shown in the results.