Create TimePeriod class - Node.js Date

Node.js examples for Date:Time

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Description

Create TimePeriod class

Demo Code

/* /*  ww w. ja  v a 2 s  . c  o m*/
 * TimePeriod(startDate, endDate);
 * TimePeriod(years, months, days, hours, minutes, seconds, milliseconds);
 */
var TimePeriod = function (years, months, days, hours, minutes, seconds, milliseconds) {
    var attrs = "years months days hours minutes seconds milliseconds".split(/\s+/);
    
    var gFn = function (attr) { 
        return function () { 
            return this[attr]; 
        }; 
    };
  
    var sFn = function (attr) { 
        return function (val) { 
            this[attr] = val; 
            return this; 
        }; 
    };
  
    for (var i = 0; i < attrs.length ; i++) {
        var $a = attrs[i], $b = $a.slice(0, 1).toUpperCase() + $a.slice(1);
        TimePeriod.prototype[$a] = 0;
        TimePeriod.prototype["get" + $b] = gFn($a);
        TimePeriod.prototype["set" + $b] = sFn($a);
    }
    
    if (arguments.length == 7) { 
        this.years = years;
        this.months = months;
        this.setDays(days);
        this.setHours(hours); 
        this.setMinutes(minutes); 
        this.setSeconds(seconds); 
        this.setMilliseconds(milliseconds);
    } else if (arguments.length == 2 && arguments[0] instanceof Date && arguments[1] instanceof Date) {
        // startDate and endDate as arguments
    
        var d1 = years.clone();
        var d2 = months.clone();
    
        var temp = d1.clone();
        var orient = (d1 > d2) ? -1 : +1;
        
        this.years = d2.getFullYear() - d1.getFullYear();
        temp.addYears(this.years);
        
        if (orient == +1) {
            if (temp > d2) {
                if (this.years !== 0) {
                    this.years--;
                }
            }
        } else {
            if (temp < d2) {
                if (this.years !== 0) {
                    this.years++;
                }
            }
        }
        
        d1.addYears(this.years);

        if (orient == +1) {
            while (d1 < d2 && d1.clone().addDays(Date.getDaysInMonth(d1.getYear(), d1.getMonth()) ) < d2) {
                d1.addMonths(1);
                this.months++;
            }
        }
        else {
            while (d1 > d2 && d1.clone().addDays(-d1.getDaysInMonth()) > d2) {
                d1.addMonths(-1);
                this.months--;
            }
        }
        
        var diff = d2 - d1;

        if (diff !== 0) {
            var ts = new TimeSpan(diff);
            this.setDays(ts.getDays());
            this.setHours(ts.getHours());
            this.setMinutes(ts.getMinutes());
            this.setSeconds(ts.getSeconds());
            this.setMilliseconds(ts.getMilliseconds());
        }
    }
    return this;
};

exports.TimePeriod = TimePeriod;
exports.TimeSpan = TimeSpan;

})(this);

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