Check if the times coincide with the moment?

Question

I have an array of time ranges [start_time, end_time], for example:

let timeSegments = [];
timeSegments.push(["02:00", "07:00"])
timeSegments.push(["03:00", "04:00"])

These time segments overlap because it 2AM - 7AMincludes3AM - 4AM

Similarly:

let timeSegments = [];
timeSegments.push(["14:00", "18:00"])
timeSegments.push(["15:00", "19:00"])

2PMbefore 6PMoverlaps with 3PMbefore 7PM.

I am using the momentjs library and would like to know a way to determine if my timesSegments array contains any time intervals that overlap? The timesSegments array can contain no more than 10 [start_time, end_time]pairs. Thank!

I would like to know if any segments overlap (true / false), I don’t need to know which segment overlaps, etc.

Answer 1

timeSegments start_time ( Array.prototype.sort) , end_time , start_time .

, .

Answer 2

-. , moment.range, ( , moment(String, String)). overlap, , .

:

window['moment-range'].extendMoment(moment);

let overlap = (timeSegments) => {
  let ret = false;
  let i = 0;
  while( !ret && i<timeSegments.length-1 ){
    let seg1 = timeSegments[i];
    let seg2 = timeSegments[i+1];
    let range1 = moment.range( moment(seg1[0], 'HH:mm'),  moment(seg1[1], 'HH:mm'));
    let range2 = moment.range( moment(seg2[0], 'HH:mm'),  moment(seg2[1], 'HH:mm'));
    if( range1.overlaps(range2) ){
      ret = true;
    }
    i++;
    
    return ret;
  }
};

let timeSegments = [];
timeSegments.push(["02:00", "07:00"])
timeSegments.push(["03:00", "04:00"])
console.log( overlap(timeSegments) ); // true

timeSegments = [];
timeSegments.push(["14:00", "18:00"])
timeSegments.push(["15:00", "19:00"])
console.log( overlap(timeSegments) ); // true

timeSegments = [];
timeSegments.push(["14:00", "18:00"])
timeSegments.push(["19:00", "21:00"])
console.log( overlap(timeSegments) ); // false

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.18.1/moment.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment-range/3.0.3/moment-range.min.js"></script>

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Answer 3

. JavaScript .

<script>
    var obj = [{ "from": "08:00", "to": "9:01" }, { "from": "18:45", "to": "19:00" }, { "from": "08:00", "to": "09:00" }, { "from": "12:00", "to": "14:00" }];
    obj = sortTime(obj);
    console.log(obj);
    if (checkoverlapping(obj)) {
        alert("yes time overlaps");
    } else {
        alert("No overlapping")
    }

    function sortTime(obj) {
        obj.sort(function (a, b) {
            KeyA = minuteValue(a.from);
            KeyB = minuteValue(b.from);

            if (KeyA < KeyB) return -1;
            else if (KeyA > KeyB) return 1;
            else {
                a = minuteValue(a.to);
                b = minuteValue(b.to);
                if (a < b) return -1;
                if (a > b) return 1;
                return 0
            }
        })
        return obj;
    }

    function minuteValue(time) {
        time = time.split(":");
        return (time[0] * 60) + (time[1] * 1);
    }


    function checkoverlapping(obj) {
        let previous = obj[0], current, overlapping = false;
        for (let i = 1; i < obj.length; i++) {
            current = obj[i]
            if (minuteValue(previous.to) > minuteValue(current.from)) {
                overlapping = true;
                break;
            }
        }
        return overlapping;
    }

</script>