CODEWITHSUNDEEP
javascriptdate
Vik
Vik

Reputation: 9289

javascript determining if a day is beyond 2 days

i have a requirement where i only get the name of the day. like what i am doing on friday.

i want to determine if the asked day is beyond 2 days. for example, like today is tuesday. and if someone ask what i am doing on friday. then friday is the 3rd day from today.

in javascript i could see i can do data operation like

var tomorrow = new Date(new Date().getTime() + 24 * 60 * 60 * 1000);
schDate = tomorrow.toDateString();

but how do i find if the asked by just day name is beyond 2 days or not?

Upvotes: 1

Views: 71

Answers (3)

Mike
Mike

Reputation: 862

new Date().getDay();

The getDay function will return the number of the day. Sunday is 0, Monday is 1, and so on.

That means Wednesday = 3 and Friday = 5 however when it is Saturday = 6 the next 2 days will be 0 and 1 .

Upvotes: 0

MinusFour
MinusFour

Reputation: 14423

If you only get day name:

    let days = {
        'sunday' : 0,
        'monday' : 1,
        'tuesday' : 2,
        'wednesday' : 3,
        'thursday' : 4,
        'friday' : 5,
        'saturday' : 6,
    }
    
    function distanceDays(from, to){
        let date = to;
        if(date < from) date += 7;
        return Math.abs(today - date);
    }

    let date = days['sunday'];
    let today = (new Date).getDay();
    
    console.log(distanceDays(today, date));

Upvotes: 0

Matus
Matus

Reputation: 1418

var daysArr = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
var today = new Date().getDay();

//return if day difference is bigger than 2
function dayDiff(day){
    if(Math.abs(daysArr.indexOf(day) - today) > 2){
        return true;
    }else{
        return false;
    }
}

dayDiff("Wednesday");

Upvotes: 1

Related Questions