The values nil, "", [] and %{} are treated as empty values.

This component optionally applies a formatter function to non-empty values.

The primary purpose of this component is to enhance accessibility. If a table cell or property list property has no value, an alternative text must be provided for screen readers.

Maturity: Developing

Usage

Render the value of @some_value if it's available, or display the default placeholder otherwise:

<.fallback value={@some_value} />

Apply a formatter function to @some_value if it is not nil:

<.fallback value={@some_value} formatter={&format_date/1} />

Set a custom placeholder and text for screen readers:

<.fallback
  value={@some_value}
  placeholder="n/a"
  accessibility_text="not available"
/>