# Sandbox.SandboxSystemExtensions.CollapseWhiteSpace

```csharp
static string CollapseWhiteSpace(string str)
```

Collapse sequences of whitespace into a single whitespace

### Parameters

- `str` (`string`)

### Returns

`string`

Declared in [Sandbox.SandboxSystemExtensions](/api/Sandbox.SandboxSystemExtensions).
Assembly: `Sandbox.System`.