UBlueprintMapLibrary::Map_Find
#include "Kismet/BlueprintMapLibrary.h"
Access: public
Specifiers: staticBlueprintPureCustomThunkBlueprintThreadSafe
Description
Looks up the value associated with a key in a map, writing it to Value and returning whether the key was found.
Caveats & Gotchas
- • Value is default-constructed (not left untouched) when the key isn't found, so downstream logic that ignores the returned bool will silently read a default value rather than any prior contents of Value.
- • The int32 types shown here are wildcard placeholders — CustomThunk resolves the real map, key, and value types from the Blueprint VM stack at the call site.
Signature
static bool Map_Find(const TMap<int32, int32>& TargetMap, const int32& Key, int32& Value);Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| TargetMap | const TMap<int32, int32>& | The map to perform the lookup on. Wildcard placeholder. | — |
| Key | const int32& | Wildcard key to look up. | — |
| Value | int32& | Receives a copy of the value associated with Key, or a default-constructed value if the key was not found. | — |
Return Type
bool Example
Look up a value by key C++
TMap<FName, int32> Scores;
Scores.Add(TEXT("Player1"), 100);
if (const int32* Found = Scores.Find(TEXT("Player1"))) // native TMap::Find — the direct C++ equivalent of the Map_Find Blueprint node
{
const int32 Score = *Found;
}Tags
Version History
Introduced in: unknown
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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