# Number Property

## Simple Number Input

A basic numeric input.

```typescript
simpleNumberProperty: number = 0;
```

![Simple Number Property](https://a.sfdcstatic.com/developer-website/sfdocs/personalization/media/interface-template-configuration/SimpleNumber.png)

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## Units Decorator

Units can be displayed next to a numeric input using the `@units` decorator.

```typescript
@units("days")
campaignDelay : number = 7;
```

![Units](https://a.sfdcstatic.com/developer-website/sfdocs/personalization/media/interface-template-configuration/Units.png)

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## Enumerated Values

A static list of options can be provided using the TypeScript *String Literal* type system. Doing so provides a dropdown menu with the options.

```typescript
simpleOption: 0 | 5 | 10;
```

For more complex dropdown examples, see [Select Property](/docs/marketing/personalization/guide/select.md).

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## See Also

- [Select Property](/docs/marketing/personalization/guide/select.md)
- [Arrays](/docs/marketing/personalization/guide/arrays.md)