Return some value from this reference, or a default value
by calling a callable argument. (function pointer, delegate, etc.)
The delegate can return a nullable type, but if the type is null
an assertion error will be triggered, supposing the program is
running in debug mode. The delegate may also return a Some type.
Return some value from this reference, or a default value by calling a callable argument. (function pointer, delegate, etc.)
The delegate can return a nullable type, but if the type is null an assertion error will be triggered, supposing the program is running in debug mode. The delegate may also return a Some type.