OptionalOps
Wraps a value self and provides methods related to Optional
Type members
Classlikes
Value members
Concrete methods
Returns some if this context is defined, otherwise none.
Returns some if this context is defined, otherwise none.
Returns the value within the context if defined or else the value of default.
Returns the value within the context if defined or else the value of default.
Returns true if a value is defined within the context.
Returns true if a value is defined within the context.
Returns true if no value is defined within the context.
Returns true if no value is defined within the context.
Returns true if a value is defined within the context.
Returns true if a value is defined within the context.
Returns this context if defined or else the value of the alternative.
Returns this context if defined or else the value of the alternative.
If the value has an a, return it; otherwise it must be
universally quantified.
If the value has an a, return it; otherwise it must be
universally quantified.
Returns this context converted to the Maybe context.
Returns this context converted to the Maybe context.