17 lines
564 B
TypeScript
17 lines
564 B
TypeScript
type WeekdayFormat = "short" | "long";
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// By default starts on Sunday (Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday)
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export function weekdayNames(locale: string | string[], weekStart = 0, format: WeekdayFormat = "long") {
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return Array(7)
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.fill(null)
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.map((_, day) => nameOfDay(locale, day + weekStart, format));
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}
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export function nameOfDay(
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locale: string | string[] | undefined,
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day: number,
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format: WeekdayFormat = "long"
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) {
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return new Intl.DateTimeFormat(locale, { weekday: format }).format(new Date(1970, 0, day + 4));
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}
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