Check if weekend exist in date range using javascript

Question

Wondering if anyone has a solution for checking if a weekend exist between two dates and its range.

var date1 = 'Apr 10, 2014';
var date2 = 'Apr 14, 2014';


funck isWeekend(date1,date2){
   //do function

    return isWeekend;
}

Thank you in advance.

EDIT Adding what I've got so far. Check the two days.

function isWeekend(date1,date2){
   //do function
    if(date1.getDay() == 6 || date1.getDay() == 0){
        return isWeekend;
        console.log("weekend")
    } 
        if(date2.getDay() == 6 || date2.getDay() == 0){
        return isWeekend;
        console.log("weekend")
    } 
}

Answer 1

Easiest would be to just iterate over the dates and return if any of the days are 6 (Saturday) or 0 (Sunday)

Demo: http://jsfiddle.net/abhitalks/xtD5V/1/

Code:

function isWeekend(date1, date2) {
    var d1 = new Date(date1),
        d2 = new Date(date2), 
        isWeekend = false;

    while (d1 < d2) {
        var day = d1.getDay();
        isWeekend = (day === 6) || (day === 0); 
        if (isWeekend) { return true; } // return immediately if weekend found
        d1.setDate(d1.getDate() + 1);
    }
    return false;
}

---

If you want to check if the whole weekend exists between the two dates, then change the code slightly:

Demo 2: http://jsfiddle.net/abhitalks/xtD5V/2/

Code:

function isFullWeekend(date1, date2) {
    var d1 = new Date(date1),
        d2 = new Date(date2); 

    while (d1 < d2) {
        var day = d1.getDay();
        if ((day === 6) || (day === 0)) { 
            var nextDate = d1; // if one weekend is found, check the next date
            nextDate.setDate(d1.getDate() + 1); // set the next date
            var nextDay = nextDate.getDay(); // get the next day
            if ((nextDay === 6) || (nextDay === 0)) {
                return true; // if next day is also a weekend, return true
            }
        }
        d1.setDate(d1.getDate() + 1);
    }
    return false;
}