'T option (FSharp.Core)

'T option Type

Namespace: FSharp.Core
Assembly: FSharp.Core.dll
Abbreviation For: Option<'T>
Base Type: obj
All Interfaces: IStructuralEquatable , IComparable<Option<'T>> , IComparable , IStructuralComparable

The type of optional values. When used from other CLI languages the empty option is the null value.

Use the constructors Some and None to create values of this type. Use the values in the Option module to manipulate values of this type, or pattern match against the values directly. 'None' values will appear as the value null to other CLI languages. Instance methods on this type will appear as static methods to other CLI languages due to the use of null as a value representation.

Instance members

Instance member	Description
`this.IsNone` Full Usage: `this.IsNone` Returns: `bool`	Return 'true' if the option is a 'None' value. Returns: `bool`
`this.IsSome` Full Usage: `this.IsSome` Returns: `bool`	Return 'true' if the option is a 'Some' value. Returns: `bool`
`this.Value` Full Usage: `this.Value` Returns: `'T`	Get the value of a 'Some' option. A NullReferenceException is raised if the option is 'None'. Returns: `'T`