function isSaturdayOrSunday(date = new Date()) {
return date.getDay() == 6 || date.getDay() == 0;
}
console.log(isSaturdayOrSunday(new Date('2022-03-19')));
console.log(isSaturdayOrSunday(new Date('2022-03-20')));
console.log(isSaturdayOrSunday(new Date('2022-03-7')));
/*
run:
true
true
false
*/