Selenium
Selenium is an open-source software tool used for automating web browsers. It allows developers to write scripts in various programming languages to simulate user interactions with websites, such as clicking buttons or filling out forms. This is particularly useful for testing web applications, ensuring they function as intended across different browsers. Selenium supports multiple browsers like Chrome, Firefox, and Safari, enabling consistent testing environments. By automating these tasks, Selenium helps improve efficiency, reduce human error in testing, and speeds up the development process.
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Selenium is a chemical element with the symbol Se and atomic number 34. It is a non-metal found in the Earth's crust and is essential in trace amounts for many living organisms. Selenium is known for its antioxidant properties, helping protect cells from damage. It plays a crucial role in metabolism and is important for thyroid function and immune health. Common dietary sources include nuts, seafood, and grains. However, too much selenium can be toxic, so a balanced intake is vital for maintaining good health.