# addArgument(argument)

Adds an argument to the command string.

#### Arguments

* **argument** - The argument to add to the command. `[String] _required_`

#### Returns

[PSCommand] - A new PSCommand object with the added argument.

#### Example

```javascript
// 'Write-Host node-powershell'
let cmd = new PSCommand('Write-Host').addArgument('node-powershell');
```