CODEWITHSUNDEEP
javascriptmomentjs
ramamoorthy_villi
ramamoorthy_villi

Reputation: 2055

Grouping dates to nearest

moment.js and loadash.js

const startTime =  [ '2021-09-30T02:38:56', '2021-09-30T02:39:56', '2021-09-30T02:40:56', '2021-09-30T02:10:56', '2021-09-30T02:11:56' ]

First 3 dates are same with 1 minute difference, second two dates are same with 1 minute difference.

I wanted to group the dates which are just 5 minutes difference, like below.

[ 
 [ 2021-09-30T02:38:56', '2021-09-30T02:39:56', '2021-09-30T02:40:56' ], 
 [ '2021-09-30T02:10:56', '2021-09-30T02:11:56' ]    
]

I able to achieve the result with multiple array iterations, but is there any pretty way?

Upvotes: 1

Views: 34

Answers (1)

Dorad
Dorad

Reputation: 3713

Here is a suggestion with a single array iteration if that is pretty way for you:

const startTime = ['2021-09-30T02:38:56', '2021-09-30T02:39:56', '2021-09-30T02:40:56', '2021-09-30T02:10:56', '2021-09-30T02:11:56'];
axisSTime = moment(startTime[1]);
const groupedSTimes = [];
let groupedSTime = [startTime[1]];
const MAX_DIFF_MIN = 5;
startTime.slice(1).forEach((sTime, i, slicedArray) => {
  const diffMin = Math.abs(moment(sTime).diff(axisSTime) / 60000);
  if (diffMin > MAX_DIFF_MIN) {
    groupedSTimes.push(groupedSTime);
    groupedSTime = [];
    axisSTime = moment(sTime);
  }
  groupedSTime.push(sTime);
  if(i == slicedArray.length - 1) {
    groupedSTimes.push(groupedSTime);
  }
});
console.log(groupedSTimes);
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js"></script>

Upvotes: 1

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