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react-day-picker

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Customizable Date Picker for React

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import { defaultDateLib } from "../classes/DateLib.js"; /** * Formats the week number. * * @defaultValue The week number as a string, with a leading zero for single-digit numbers. * @param weekNumber The week number to format. * @param dateLib The date library to use for formatting. Defaults to * `defaultDateLib`. * @returns The formatted week number as a string. * @group Formatters * @see https://daypicker.dev/docs/translation#custom-formatters */ export function formatWeekNumber(weekNumber: number, dateLib = defaultDateLib) { if (weekNumber < 10) { return dateLib.formatNumber(`0${weekNumber.toLocaleString()}`); } return dateLib.formatNumber(`${weekNumber.toLocaleString()}`); }