FName Class¶
An immutable case-insensitive but case-preserving string type, that is widely used throughout the engine. It is used for asset names, variables and parameters, etc. When shown, it is often passed through FName::NameToDisplayString, which converts a string like DrawScale3D to Draw Scale 3D. However, it is not insensitive to spaces during comparison.
FName(TEXT("confirm")) == FName(TEXT("Confirm")) // true
FName(TEXT("DrawScale3D")) == FName(TEXT("Draw Scale 3D")) // false
FNames are indexed in a global table, and the engine will use their unique identifier to compare them, making them faster to compare than FStrings. The two types can be easily converted to one another:
TestHUDString = TestHUDName.ToString();
TestHUDName = FName(*TestHUDString);