UBlueprintSetLibrary::Set_IsEmpty

function Engine Blueprint Since unknown

#include "Kismet/BlueprintSetLibrary.h"

Access: public Specifiers: staticBlueprintPureCustomThunk

Description

Returns true if the set has zero elements.

Caveats & Gotchas

• Equivalent to checking Set_Length() == 0; provided as a separate node purely for Blueprint graph readability.
• In C++, call TSet::IsEmpty() directly instead of routing through this wildcard wrapper.

Signature

static bool Set_IsEmpty(const TSet<int32>& TargetSet);

Parameters

Name	Type	Description	Default
TargetSet	const TSet<int32>&	Wildcard placeholder for the set to check.	—

Return Type

bool

Example

Guard against an empty set C++

TSet<FName> UnlockedLevels;
if (UnlockedLevels.IsEmpty()) // native TSet::IsEmpty — the direct equivalent of the Set_IsEmpty node
{
    UE_LOG(LogTemp, Warning, TEXT("No levels unlocked yet"));
}

Version History

Introduced in: unknown

Version	Status	Notes
5.6	stable	—

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