Question

13

Get all days of the week given a day

rated 0 times [ 14] [ 1] / answers: 1 / hits: 21764 / 7 Years ago, fri, march 24, 2017, 12:00:00

I'm trying to make a function to get all the days of the week given the current day. I had a function that i thought was working until i noticed that if the day of the week is near the end of the month, like for example February, i get weird data. Anyone know whats going on and how to fix it?

function days(current) {

  var week = new Array();

  // Starting Monday not Sunday 

  var first = ((current.getDate() - current.getDay()) + 1);

  for (var i = 0; i < 7; i++) {

    week.push(

      new Date(current.setDate(first++))

    );

  }

  return week;

}



var input = new Date(2017, 1, 27);

console.log('input: %s', input);



var result = days(input);

console.log(result.map(d => d.toString()));

.as-console-wrapper{min-height:100%}

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taylert

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answered 7 Years ago ryans · Accepted Answer

If you don't want to use some kind of other library like Moment.js you can also change your function a little and then it will work. Try this:

function dates(current) {

    var week= new Array(); 

    // Starting Monday not Sunday

    current.setDate((current.getDate() - current.getDay() +1));

    for (var i = 0; i < 7; i++) {

        week.push(

            new Date(current)

        ); 

        current.setDate(current.getDate() +1);

    }

    return week; 

}

console.log(dates(new Date(2017, 1, 27)));