description

# Exception class abstract interface

A marker interface implemented by all core library exceptions.

An Exception is intended to convey information to the user about a failure, so that the error can be addressed programmatically. It is intended to be caught, and it should contain useful data fields.

Creating instances of Exception directly with `Exception("message")` is discouraged in library code since it doesn't give users a precise type they can catch. It may be reasonable to use instances of this class in tests or during development.

For failures that are not intended to be caught, use Error and its subclasses.

Implementers
  - DeferredLoadException
  - FormatException
  - IntegerDivisionByZeroException
  - IOException
  - IsolateSpawnException
  - NullRejectionException
  - NullWindowException
  - OSError
  - TimeoutException

## Constructors

Exception([dynamic message])
  factory

## Properties

hashCode → int
  The hash code for this object.
  no setter inherited
runtimeType → Type
  A representation of the runtime type of the object.
  no setter inherited

## Methods

noSuchMethod(Invocation invocation) → dynamic
  Invoked when a nonexistent method or property is accessed.
  inherited
toString() → String
  A string representation of this object.
  inherited

## Operators

operator ==(Object other) → bool
  The equality operator.
  inherited