how to determine if date is weekend in javascript [closed]

Answer 1

I've tested most of the answers here and there's always some issue with the Timezone, Locale, or when start of the week is either Sunday or Monday.

Below is one which I find is more secure, since it relies on the name of the weekday and on the en locale.

let startDate = start.clone(),
    endDate = end.clone();

let days = 0;
do {
    const weekday = startDate.locale('en').format('ffffdd'); // Monday ... Sunday
    if (weekday !== 'Sunday' && weekday !== 'Saturday') days++;
} while (startDate.add(1, 'days').diff(endDate) <= 0);

return days;

Answer 2

var day = yourDateObject.getDay();
var isWeekend = (day === 6) || (day === 0);    // 6 = Saturday, 0 = Sunday

Answer 3

Short and sweet.

var isWeekend = ([0,6].indexOf(new Date().getDay()) != -1);

Answer 4

Use .getDay() method on the Date object to get the day.

Check if it is 6 (Saturday) or 0 (Sunday)

var givenDate = new Date('2020-07-11');
var day = givenDate.getDay();
var isWeekend = (day === 6) || (day === 0) ? 'It's weekend': 'It's working day';
    
console.log(isWeekend);

Answer 5

Simply add 1 before modulo

var isWeekend = (yourDateObject.getDay() + 1) % 7 == 0;