everyutil/date/previousBusinessDay.js

A comprehensive library of lightweight, reusable utility functions for JavaScript and TypeScript, designed to streamline common programming tasks such as string manipulation, array processing, date handling, and more.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.previousBusinessDay = void 0;
/**
 * Finds the previous business day before a given date, skipping weekends and holidays.
 * @author @dailker
 * @param {Date} date
 * @param {Date[]} [holidays=[]]
 * @returns {Date}
 */
function previousBusinessDay(date, holidays = []) {
    let d = new Date(date);
    do {
        d.setDate(d.getDate() - 1);
    } while (d.getDay() === 0 || d.getDay() === 6 || holidays.some(h => h.toDateString() === d.toDateString()));
    return d;
}
exports.previousBusinessDay = previousBusinessDay;