handling With a message in TypeScript

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Category: Error handling | Language: TypeScript

In TypeScript, you can use try/catch/finally blocks to handle errors that may occur in your code. Here is an example of how to use try/catch/finally with an error message:

try {
  // Your code here
} catch (error) {
  console.error(Error occurred: ${error});
} finally {
  console.log('This code will always execute');
}

In the above example, the try block contains the code that may throw an error. If an error is thrown, the catch block is executed and logs an error message to the console. The finally block will be executed no matter what, regardless of whether an error was thrown or not.

Here is another example that demonstrates how to use try/catch/finally with a custom error message:

try {
  const username = getUsername();
  const password = getPassword();
  // Your code here
} catch (error) {
  console.error(Error occurred while processing request. Details: ${error});
} finally {
  console.log('Request processed.')
}

In this example, a getUsername() function is called, which may throw an error if the function fails to retrieve the username. Similarly, a getPassword() function is called, which may also throw an error. If any errors occur, the catch block is executed and logs a custom error message to the console. The finally block logs a message indicating that the request has been processed, regardless of whether an error occurred or not.