moment.creationData() replacement ?

[sunry81914]

I want to get the format of a dayjs instance. Is there a similar method like creationDate() provided by moment?

moment("2013-01-02", "YYYY-MM-DD", true).creationData() === {
    input: "2013-01-02",
    format: "YYYY-MM-DD",
    locale: Locale obj,
    isUTC: false,
    strict: true
}

[BePo65]

a dayjs object just does not have this information. The only item is 'isUTC' that can be acquired by using the corresponding function from the utc plugin (dayjs.utc().isUTC()) and the locale name that can be found with dayjs.locale() (e.g. resulting in 'en')