js 判斷所選時間(或者當前時間)是否在某一時間段

轉自：http://www.cnblogs.com/vincent_ds/archive/2012/09/13/2683755.html

var time_range = function (beginTime, endTime, nowTime) {
    var strb = beginTime.split (":");
    if (strb.length != 2) {
        return false;
    }

    var stre = endTime.split (":");
    if (stre.length != 2) {
        return false;
    }

    var strn = nowTime.split (":");
    if (stre.length != 2) {
        return false;
    }
    var b = new Date ();
    var e = new Date ();
    var n = new Date ();

    b.setHours (strb[0]);
    b.setMinutes (strb[1]);
    e.setHours (stre[0]);
    e.setMinutes (stre[1]);
    n.setHours (strn[0]);
    n.setMinutes (strn[1]);

    if (n.getTime () - b.getTime () > 0 && n.getTime () - e.getTime () < 0) {
        return true;
    } else {
        alert ("當前時間是：" + n.getHours () + ":" + n.getMinutes () + "，不在該時間範圍內！");
        return false;
    }
}
time_range ("21:30", "23:30", "3:22");

效果:

當前時間的情況下:

var time_range = function (beginTime, endTime) {
    var strb = beginTime.split (":");
    if (strb.length != 2) {
        return false;
    }

    var stre = endTime.split (":");
    if (stre.length != 2) {
        return false;
    }

    var b = new Date ();
    var e = new Date ();
    var n = new Date ();

    b.setHours (strb[0]);
    b.setMinutes (strb[1]);
    e.setHours (stre[0]);
    e.setMinutes (stre[1]);

    if (n.getTime () - b.getTime () > 0 && n.getTime () - e.getTime () < 0) {
        return true;
    } else {
        alert ("當前時間是：" + n.getHours () + ":" + n.getMinutes () + "，不在該時間範圍內！");
        return false;
    }
}
time_range ("21:30", "23:30");