https://www.kaleidahealth.org/js/timeit.js

1(function ($) {
2//version 3. 2017-08-13
3function timeit() {
4  console.log("in timeit");
5  var next_run_array = []; //array of dates/time on a page used to rerun function if a change should happen during the session
6  var curDate = new Date();
7  Date.prototype.yyyymmdd = function() {
8    var mm = this.getMonth() + 1;
9    var dd = this.getDate();
10    return [this.getFullYear(),
11      (mm > 9 ? '' : '0') + mm,
12      (dd > 9 ? '' : '0') + dd
13    ].join('-');
14  };
15  var curDateYMD = curDate.yyyymmdd();
16
17  $('.timeit').each(function() {
18    var end = $(this).data('end'),
19      start = $(this).data('start');
20    // var end = $(this).attr('data-end'),
21    // start = $(this).attr('data-start');
22
23    //check if date or time value has valid format and push it to the list of refresh anchors
24    var startDate = checkdate(start, this);
25    var endDate = checkdate(end, this);
26    nextrun(startDate);
27    nextrun(endDate);
28
29	//add a datetime when the page needs to be refreshed (now+24 hrs time span only)
30    function nextrun(date) {
31      var nextruntimeout = date - curDate;
32      if (nextruntimeout < 1000 * 60 * 60 * 24 && nextruntimeout > 1000) {
33        next_run_array.push(nextruntimeout);
34      }
35    }
36
37    // Main Function
38    //check if the evend outside of a desired time span
39    if (((startDate < endDate) && (startDate > curDate || endDate < curDate)) ||
40      ((startDate > endDate) && (startDate >= curDate) && (endDate <= curDate))
41    ) {
42
43      $(this).addClass('d-none'); // Changed from hidden for bootstrap 4/5 compatibility issues
44    } else {
45      $(this).removeClass('d-none'); // Changed from hidden bootstrap 4/5 compatibility issues
46    }
47
48	//Support Functions
49    //correct data creation from a string. accepted format YYYY-MM-DD HH:MM
50    function parseISO8601(d) {
51    var isoExp = /^\s*(\d{4})-(\d\d)-(\d\d)?.(\d\d)?.(\d\d)\s*$/,
52        date = new Date(NaN),
53        datenew,
54        month,
55        dateString=d.substr(0, d.indexOf(' '));
56        parts = isoExp.exec(d);
57
58    if(parts) {
59      month = +parts[2];
60      date.setFullYear(parts[1], month - 1, parts[3]);
61      if(month != date.getMonth() + 1) {
62        date.setTime(NaN);
63      }
64      date = new Date(parts[1], month - 1, parts[3],  parts[4], parts[5])
65    }
66    return date;
67  }
68
69  //unification of the date string to the format YYYY-MM-DD HH:MM
70    function checkdate(date, obj) {
71      if (date) {
72        //check if only time is set (HH:MM); if so, add today's date
73        if (String(date).length < 6 && String(date).indexOf(":") > -1) {
74          date = curDateYMD + ' ' + String(date);
75        }
76        //check if only date is set; if so add 00:00 to the end of date
77        if (String(date).indexOf(":") == -1) {
78          date = date + ' 00:00';
79        }
80        //check if date is valid (avoid valid time)
81        var res = date.split(":"),
82          h = String(res.slice(0, 1)),
83          hours = h.substr(h.length - 2),
84          minutes = res.slice(1);
85        var timetest = (hours < 24 && minutes < 60) ? true : false;
86
87        //check if date is could be created from a value; if fails try to parse a string to a format
88        var returndate = new Date(date);
89        if (returndate == 'Invalid Date') {
90          var returndate = parseISO8601(date);
91        };
92
93
94        if (returndate == 'Invalid Date' || !timetest) {
95          //highlight the element if the is an error. use own \.error class if needed
96          $(obj).addClass("error").attr('title', '"' + date + '" date is incorrect; please use YYYY-MM-DD HH:MM format');
97        }
98        return returndate.getTime();
99      } else {
100        //if datetime is not set, just return current date-time
101        return curDate.getTime();
102      }
103    }
104  });
105
106  /* Schedule next runs */
107  if (next_run_array.length > 0) {
108    var nextruntime = Math.min.apply(null, next_run_array);
109    console.log("next run of timeit function is in " +  nextruntime / 1000 + "seconds");
110    setTimeout(function() {
111      timeit();
112    }, nextruntime);
113  }
114}
115timeit();
116//******CLOSE WRAP FOR CUSTOM JS WITH THE FOLLOWING FOR DRUPAL 8 **************
117}(jQuery));