@edugouvfr/ngx-dsfr
Version:
NgxDsfr est un portage Angular des éléments d'interface du Système de Design de l'État Français (DSFR).
61 lines • 8.29 kB
JavaScript
/**
* @author pfontanet
* @since 0.7
*/
export class DateUtils {
constructor() { }
/**
* Transforme un string représentant une date au format `'dd/mm/yyyy'` en objet `Date`.
* Le siècle peut-être sur 2 digits, dans ce cas, cela correspond à `'19yy'`.
* @returns Date ou undefined
*/
static parseDateFr(dateStr) {
const regexp = /^(?<day>3[01]|0?[1-9]|[12][0-9])\/(?<month>1[0-2]|0?[1-9])\/(?<year>[0-9]{4})$/;
return DateUtils.parseDate(dateStr, regexp);
}
/**
* Transforme un string représentant une date au format ISO 8601 en objet `Date`.
* @returns Date ou undefined
*/
static parseDateIso(dateStr) {
// https://www.oreilly.com/library/view/regular-expressions-cookbook/9781449327453/ch04s07.html
const regexp = /^(?<year>-?(?:[1-9][0-9]*)?[0-9]{4})-(?<month>1[0-2]|0[1-9])-(?<day>3[01]|0[1-9]|[12][0-9])(T(?<hour>2[0-4]|[01][0-9]):(?<minute>[0-5][0-9]):(?<second>[0-5][0-9])(?<ms>\.[0-9]+)?(?<timezone>Z|[+-](?:2[0-3]|[01][0-9]):[0-5][0-9])?)?$/;
return DateUtils.parseDate(dateStr, regexp);
}
/**
* Retourne une Date UTC, sans heure, minute seconde, à partir d'une date
* @param date
*/
static date2Utc(date) {
return new Date(Date.UTC(date.getFullYear(), date.getMonth(), date.getDate()));
}
/**
* Retourne une Date UTC, sans heure, minute seconde, selon plusieurs formats en entrée
* @param value
*/
static dateUtcOf(value) {
let date = undefined;
if (typeof value === 'string')
date = DateUtils.parseDateIso(value);
else if (typeof value === 'number')
date = DateUtils.numberToDateUtc(value);
else if (value)
date = DateUtils.date2Utc(value);
return date;
}
static parseDate(dateStr, regexp) {
if (!dateStr)
return undefined;
const execArr = regexp.exec(dateStr);
const groups = execArr?.groups;
const valid = !!groups && !!groups['year'] && !!groups['month'] && !!groups['day'];
return !valid
? undefined
: new Date(Date.UTC(Number(groups['year']), Number(groups['month']) - 1, Number(groups['day'])));
}
static numberToDateUtc(n) {
const d = new Date(n);
return new Date(Date.UTC(d.getUTCFullYear(), d.getUTCMonth(), d.getUTCDate()));
}
}
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