UKismetArrayLibrary::Array_Set
#include "Kismet/KismetArrayLibrary.h"
Access: public
Specifiers: staticBlueprintCallableCustomThunk
Description
Assigns a value to the array element at the given index, optionally growing the array to fit.
Caveats & Gotchas
- • If bSizeToFit is false and Index is out of range, the assignment silently does nothing rather than crashing — check Array_IsValidIndex first if you need to detect that case.
- • When bSizeToFit grows the array, the newly created intermediate slots are default-constructed, not copies of Item — only the slot at Index receives the given value.
- • Displayed in Blueprint as 'Set Array Elem' with no CompactNodeTitle.
Signature
static void Array_Set(UPARAM(ref) TArray<int32>& TargetArray, int32 Index, const int32& Item, bool bSizeToFit);Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| TargetArray | UPARAM(ref) TArray<int32>& | The array to write to. Passed by reference and mutated in place. | — |
| Index | int32 | The index to assign the item to. | — |
| Item | const int32& | The value to assign at Index. | — |
| bSizeToFit | bool | If true, the array is grown to accommodate Index when it is out of range. | — |
Return Type
void Example
Overwrite an element C++
TArray<int32> Values = { 10, 20, 30 };
UKismetArrayLibrary::Array_Set(Values, 1, 99, false);
// Values is now { 10, 99, 30 }See Also
Tags
Version History
Introduced in: unknown
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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