// since 8.0
public void StaticFunctions()
{
var instance = new UsefulObject();
instance.Name = "Matthew";
instance.Age = 26;
var result = Calculate(instance);
static int Calculate(UsefulObject inst)
{
if (inst.Name == "Matthew")
{
return(inst.Age);
}
return(-1);
}
public void Demonstrate(UsefulObject instance)
{
// get it or throw
int justGetIt = instance.Name !.Length;
// get it or null
int?tryGetIt = instance.Name?.Length;
// try get it or use 0
int fixIt = instance.Name?.Length ?? 0;
if (instance.Name == null)
{
return;
}
// at this point, Name can't be null
int magic = instance.Name.Length;
}
// since 7.0
public void LocalFunctions()
{
var instance = new UsefulObject();
instance.Name = "Matthew";
instance.Age = 26;
var result = Calculate();
int Calculate()
{
// Oh dear, we captured obj
if (instance.Name == "Matthew")
{
return(instance.Age);
}
return(-1);
}
}