# Sandbox.Script.HasArgument

```csharp
bool HasArgument(string name)
```

Whether this script references a named external argument. Use before supplying optional host inputs.
Names are case sensitive; locals do not count as external arguments.

### Parameters

- `name` (`string`)

### Returns

`bool`

Declared in [Sandbox.Script](/api/Sandbox.Script).
Assembly: `Sandbox.Engine`.