Question 4: Explain the difference between `try...catch` and `try...finally` blocks in JavaScript.

The `try...catch` block is used to handle exceptions (errors) that might occur during the execution of a code block. If an exception occurs, the `catch` block is executed. The `try...finally` block ensures that code within the `finally` block is always executed, regardless of whether an exception occurred or not. It's used for cleanup operations like closing files or releasing resources.