Unreal Engine Blueprint API Reference > AI > Components > Blackboard
If the vector value has been set (and not cleared), this function returns true (indicating that the value should be valid). If it's not set, the vector value is invalid and this function will return false. (Also returns false if the key specified does not hold a vector.)
Target is Blackboard Component
Inputs
| Type | Name | Description |
|---|---|---|
| object | Target | |
| name | Key Name |
Outputs
| Type | Name | Description |
|---|---|---|
| boolean | Return Value | If the vector value has been set (and not cleared), this function returns true (indicating that the value should be valid). If it's not set, the vector value is invalid and this function will return false. (Also returns false if the key specified does not hold a vector.) |