Atlassian - Senior Frontend Engineer - Javascript round

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Atlassian - Senior Frontend Engineer - Karat round

Level: Senior frontend enginner
Education: Btech from tier 3 college
Years of Experience: 9
Questions Asked:

Create a class that will serve as an analytics manager, it must collection and dispatch events to the backend. Handle batching, interval based batching, edge cases like navigating away from window etc

was this the javascript round of the onsite or was this the Karat interview before the onsite?