# Error: ShowValueRequired

No value was provided to the `data-show` attribute. The `data-show` attribute _must_ have a value, representing an expression evaluating to `true` or `false`, which determines whether to show or hide the element, respectively.

Example:

```html
<div data-show="foo.value"></div>
```

See the docs on the [`data-show`](/reference/attribute_plugins#data-show) attribute.