openproject/frontend/app/templates/work_packages/tabs/activity.html

<work-package-comment work-package="workPackage"
                      activities="activities"
                      autocomplete-path="{{ autocompletePath }}">
  <div class="detail-activity">
    <ul class="work-package-details-activities-list">
      <li ng-repeat="activity in activities"
          class="work-package-details-activities-activity"
          ng-init="activityNo    = activitiesSortedInDescendingOrder && activities.length - $index || $index + 1;
                   isInitial     = isInitialActivity(activity, activityNo);
                   currentDate   = (activity.props.createdAt|date:'longDate');
                   currentAnchor = 'note-' + activityNo">
        <h3 class="activity-date"
            ng-if="currentDate !== (activities[$index-1].props.createdAt | date:'longDate')"
            ng-bind="currentDate"/>
          <activity-entry work-package="workPackage"
                          activity="activity"
                          activity-no="activityNo"
                          is-initial="isInitial"
                          autocomplete-path="autocompletePath">
          </activity-entry>
        </div>
      </li>
    </ul>
  </div>
</work-package-comment>