DataValidation

The base DataValidation that contains properties common to all validations, such as help text.
Validations can be added to certain `https://developers.google.com/apps-script/reference/forms/form` items.

```
 // Add a text item to a form and require it to be a number within a range.
 var textItem = form.addTextItem().setTitle('Pick a number between 1 and 100?');
 var textValidation = FormApp.createTextValidation()
   .setHelpText(“Input was not a number between 1 and 100.”)
   .requireNumberBetween(1, 100);
 textItem.setValidation(textValidation);
 
```

### Methods

| Method | Return type | Brief description |
|---|---|---|
| `https://developers.google.com/apps-script/reference/forms/data-validation#getHelpText()` | `String` | Gets the DataValidation's help text. |

## Detailed documentation

### `getHelpText()`

Gets the DataValidation's help text. This text is shown to the user if the input fails
validation.

#### Return


`String` --- the DataValidation's help text