weekNumberFormat

Controls the week number text.

<div class='spec' markdown='1'> [Date Formatter](date-formatting), *default*: `{ week: 'narrow' }` </div>

The formatted text depends on weekText.

If set to { week: 'short' }, and weekText is set to "W", a value like "W 6" will be outputted.

If set to { week: 'narrow' }, and weekText is set to "W", a value like "W6" will be outputted.

If set to { week: 'numeric' }, a plain numeric value like "6" will be outputted.