Merge Divs With Same Value

I am trying to merge the divs that have the same number in order to see the week and its number. This is how my html looks like

Solution 1:

You can do it the following way by creating a groupBy pipe and including Bootstrap 4 in the project. Here is a plain working demo (you will have to do the styling) demo:

groupby.pipe.ts

import { Pipe, PipeTransform } from '@angular/core';

@Pipe({name: 'groupBy'})
export class GroupByPipe implements PipeTransform {
    transform(collection: any[], property: string): any[] {
        // prevents the application from breaking if the array of objects doesn't exist yet
        if(!collection) {
            return null;
        }

        const groupedCollection = collection.reduce((previous, current)=> {
            if(!previous[current[property]]) {
                previous[current[property]] = [current];
            } else {
                previous[current[property]].push(current);
            }

            return previous;
        }, {});

        // this will return an array of objects, each object containing a group of objects
        return Object.keys(groupedCollection).map(key => ({ key, value: groupedCollection[key] }));
    }
}

html code

<div class="table table-borderless ">
  <div class="col-md-12 text-center border"><span>{{currentMonthName}}</span>&nbsp; <span>{{currentYear}}</span></div>

    <div class="d-flex">
      <div class=" text-center m-2 border" *ngFor="let day of days | groupBy:'weekNumber'">
        {{day.key}}
      <table class="table">
          <tbody>
            <tr>
              <th scope="row"  *ngFor="let x of day.value ">{{x.number}}</th>
            </tr>
            <tr>
              <th scope="row"  *ngFor="let y of day.value ">{{y.name}}</th>
            </tr>

          </tbody>
      </table>
      </div>
    </div>

</div>

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