# void StrCat(str&, str)

[Family: Global](/imperivm/en/CKS/familias/global/)

## Exact signature

```text
void StrCat(str&, str)
```

## Description

Appends the second string to the first, modifying the first string.

## Parameters and return type

**Return type:** `void`

| Position | Type |
| --- | --- |
| 1 | `str&` |
| 2 | `str` |

`&` indicates a parameter passed by reference, which can be modified.

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