Exceptions are used when a method doesn’t return a value. By using exceptions, applications can avoid early returns and write cleaner code. This allows for multiple calls to be coded in one block, while return codes can be used only when a call is expected to succeed. While it may be tempting to return a value on success, this approach is less predictable. Moreover, it can cause confusion. Exceptions can be dangerous when they happen frequently.
The error itself is a result of an invalid parameter. A throwError() function throws a generic error. This method is more readable than its statement-based counterpart, which makes it more enticing. The error value is turned into a number by concatenating it with the value of the argument. The error value is then returned to the consumer. This is a useful method for dealing with unexpected data.
While throwing an exception is a valid option, it is best practice to create an object from the stack. This will give you an automatic stack trace. Stack traces can be very useful for troubleshooting purposes. However, they can be a little confusing. It’s best to use this technique only as a last resort. It’s better to make the application more resilient than to throw errors. This will help you develop applications that are more resilient to errors and will be more responsive to users.