Current File : /var/www/html/node_modules/date-fns/esm/_lib/startOfUTCWeek/index.js
import toDate from "../../toDate/index.js";
import requiredArgs from "../requiredArgs/index.js";
import toInteger from "../toInteger/index.js"; // This function will be a part of public API when UTC function will be implemented.
// See issue: https://github.com/date-fns/date-fns/issues/376
export default function startOfUTCWeek(dirtyDate, dirtyOptions) {
requiredArgs(1, arguments);
var options = dirtyOptions || {};
var locale = options.locale;
var localeWeekStartsOn = locale && locale.options && locale.options.weekStartsOn;
var defaultWeekStartsOn = localeWeekStartsOn == null ? 0 : toInteger(localeWeekStartsOn);
var weekStartsOn = options.weekStartsOn == null ? defaultWeekStartsOn : toInteger(options.weekStartsOn); // Test if weekStartsOn is between 0 and 6 _and_ is not NaN
if (!(weekStartsOn >= 0 && weekStartsOn <= 6)) {
throw new RangeError('weekStartsOn must be between 0 and 6 inclusively');
}
var date = toDate(dirtyDate);
var day = date.getUTCDay();
var diff = (day < weekStartsOn ? 7 : 0) + day - weekStartsOn;
date.setUTCDate(date.getUTCDate() - diff);
date.setUTCHours(0, 0, 0, 0);
return date;
}
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