This example shows how JavaScript calculates the date in two date time periods. Share with you for your reference. The specific implementation method is as follows:

/*************************
 *  Calculate all the dates in the two date periods
 * 
 * @param value1
 *             Start date  YYYY-MM-DD
 * @param value2
 *             End date
 * return  Date of the array
 */ 
function dataScope(value1, value2) { 
    var getDate = function(str) { 
        var tempDate = new Date(); 
        var list = str.split("-"); 
        tempDate.setFullYear(list[0]); 
        tempDate.setMonth(list[1] - 1); 
        tempDate.setDate(list[2]); 
        return tempDate; 
    } 
    var date1 = getDate(value1); 
    var date2 = getDate(value2); 
    if (date1 > date2) { 
        var tempDate = date1; 
        date1 = date2; 
        date2 = tempDate; 
    } 
    date1.setDate(date1.getDate() + 1); 
    var dateArr = []; 
    var i = 0; 
    while (!(date1.getFullYear() == date2.getFullYear() 
            && date1.getMonth() == date2.getMonth() && date1.getDate() == date2 
            .getDate())) { 
         var dayStr =date1.getDate().toString(); 
            if(dayStr.length ==1){ 
                dayStr="0"+dayStr; 
            } 
        dateArr[i] = date1.getFullYear() + "-" + (date1.getMonth() + 1) + "-" 
                + dayStr; 
        i++; 
        /*
         * document.write("<div style='display:block'>" + date1.getFullYear() +
         * "-" + (date1.getMonth() + 1) + "-" + date1.getDate() + "</div>");
         */ 
        // document.write(dateArr[i] + "<br>"); 
        date1.setDate(date1.getDate() + 1); 
    } 
    return dateArr; 
}

I hope this article has been helpful to your javascript programming.