What are the options for 'Date.toLocaleString()'?

Question

According to the MDN documentation for Date.toLocaleString(), the second parameter is an options parameter:

toLocaleString(locales, options)

Which they use in an example:

let date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));

// Request a weekday along with a long date
let options = { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' };

console.log(date.toLocaleString('de-DE', options));

My question is, what are the possible properties for the options parameter?

Answer 1

It's the same as those for the Intl.DateTimeFormat() constructor, whose MDN documentation provides a list of each valid property and an explanation.

The possible properties are as follows:

• dateStyle
• timeStyle
• calendar
• dayPeriod
• numberingSystem
• localeMatcher
• timeZone
• hour12
• hourCycle
• formatMatcher
• weekday
• era
• year
• month
• day
• hour
• minute
• second
• fractionalSecondDigits
• timeZoneName