UBlueprintMapLibrary::Map_IsEmpty

function Engine Blueprint Since unknown

#include "Kismet/BlueprintMapLibrary.h"

Access: public Specifiers: staticBlueprintPureCustomThunk

Description

Returns true if the map has zero entries.

Caveats & Gotchas

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

Signature

static bool Map_IsEmpty(const TMap<int32, int32>& TargetMap);

Parameters

Name	Type	Description	Default
TargetMap	const TMap<int32, int32>&	Wildcard placeholder for the map to check.	—

Return Type

bool

Example

Guard against an empty map C++

TMap<FName, int32> Scores;
if (Scores.IsEmpty()) // native TMap::IsEmpty — the direct equivalent of the Map_IsEmpty node
{
    UE_LOG(LogTemp, Warning, TEXT("No scores recorded yet"));
}

Version History

Introduced in: unknown

Version	Status	Notes
5.6	stable	—

Feedback

Was this helpful?