In Go, a custom error can be created by implementing the _____ interface.

  • Error
  • CustomError
  • fmt
  • Stringer
In Go, a custom error can be created by implementing the error interface. The error interface is defined as type error interface { Error() string }, which means that any type implementing this interface must provide an Error() method that returns a string. This method defines the error message for the custom error type. Implementing the error interface allows custom error types to be used interchangeably with the built-in error type in Go.
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