javascript - JS & 时间范围 - 无法编写正确的 IF 语句

Question

我正在制作一个小部件，显示现在的天气是否是工作时间。非常简单，只需将当前时间与开始和结束时间匹配即可!但如果公司的工作时间从晚上到早上，整个逻辑就失败了:

  var atWork = 'false';
    var start = 22; //working day  starts
    var end = 7; //working day  ends
    var nowt = 1; //

    if (start>=end)   {//nightshift
       end+=12; start -=12; 
        if (nowt > 0 && nowt <12) nowt += 12; else nowt-=12; 
       if (start < nowt && nowt< (end-12)){ atWork = 'true'; }
    } 
    else { //normal
        if (nowt >= start && nowt <end){atWork = 'true'; }
    } 
    $('#debug').html(atWork+' start: '+start+' end: '+end+'  curtime: '+nowt);

感谢 gurvinder372，我想出了这个解决方案...但仍然无法正常工作(

Answer 1

function check(start, end, current) {
    return ((current >= start || current <= end) && end <= start) || 
            (current <= end && current >= start);
}