Apache Kafka and traditional message queues such as RabbitMQ and JMS are messaging systems, but they are designed for different use cases. This guide covers 90+ commonly asked Kafka interview questions, from basics to architecture, internals, and best practices — helping you show a solid, up-to-date understanding of Kafka in your interviews. Apache Kafka is a key tool in today’s world of data and distributed systems, widely used for real-time data streaming and processing across roles like software engineers, data engineers, and DevOps professionals. The map does not provide get method to get the elements at a specified index Set does not provide get method to get the elements at a specified index For every visited node, make it next to the prev and set previous of this node as prev.
- Unlike Python lists, NumPy arrays are optimized for numerical computations, offering faster processing, memory efficiency, and support for vectorized operations.
- With global developer job postings up 27%, full-stack skills have become one of the most in-demand combinations in tech hiring.
- With hands-on experience working on data processing pipelines, handling large-scale datasets, and optimizing Spark jobs for performance, I have seen how critical PySpark is in real-world data engineering workflows.
- Mapping data flows are visually designed data transformations in Azure Data Factory.
By setting appropriate timeouts, developers can manage the execution flow effectively, improving the reliability and robustness of their automated tests. They are crucial in ensuring that scripts do not hang indefinitely when waiting for elements to appear or certain conditions to be met. When running tests, Playwright outputs detailed logs to the console, including information about the tests executed, their pass/fail status, and any errors encountered.
Continue The continue statement terminates the current iteration of the statement, skips the rest of the code in the current iteration and the control flows to the next iteration of the loop. Break The break statement terminates the loop immediately and the control flows to the statement after the body of the loop. Answer 4 simple questions & get a career plan tailored for you
Additionally, if you want to open a new window from an existing page, you can handle a `window.open` event by attaching a listener that creates a new page in the current context. Developers can use the `browser.newContext()` method to initiate a new context, which allows for parallel testing in isolated environments. Opening multiple windows in Playwright can be achieved by creating additional BrowserContexts or by navigating within the same context. This allows you to create realistic testing environments and ensure that your application performs well regardless of users’ network capabilities.
This contributes significantly to the robustness of automated tests, providing developers with confidence in the validity of their https://uvik.io/ test results. The `testError` object in Playwright is an essential component that captures details about any errors encountered during test execution. To achieve this, you can employ event listeners to log the details of each request and response. By employing these techniques, you can efficiently navigate through pages in your automated tests, ensuring that all elements become accessible during execution.
See the official Playwright documentation for the full setup reference. It automates Chromium, Firefox, and WebKit through a single consistent API. While not ideal for automated tests, browser developer tools allow manual screenshot capture during debugging.
