GroupBy and count objects in an array in typescript

Issue

This is how my array looks like: and my array is not type of string, it's type of it own object called MyObject (just like setter and getter objects in java)

["Car","model","year","color","price"]
["Table","model","year","color","price"]
["Car","model","year","color","price"]
["Car","model","year","color","price"]
["Laptop","model","year","color","price"]
["Laptop","model","year","color","price"]

now I want to group by this in typescript and count how many of that item exist in array (also like in sql)

name  |count
 Car  | 3
Laptop| 2
Table | 1

and in my typescript file I have this

private groupByObjects() {
  //this read all data in array allData[] from service
  this.dataService.retrieveData().subscribe(allData => {

});

}

Could anyone please help me to write this in typescript?

Solution

I tried a lot and can write the answer which is works for me perfectly. So I post it now and hope it helps anyone who has the same problem as mine.

private groupByElement(receivedData: ReceivedData, elements: Array<GroupByElement>) {
    let groupElement: GroupByElement = new GroupByElement;

    if (!elements.find(x => x.element== receivedData.element)) {
      groupElement.element= receivedData.element;
      groupElement.count = 1;
      elements.push(groupElement);
    } else {
      this.updateElementCounter = elements.find(x => x.element== receivedData.element)?.count;
      this.updateElementCounter! += 1;
      this.indexElementCount = elements.findIndex(x => x.element== receivedData.element);

      elements[this.indexElementCount].count = this.updateElementCounter!;
    }
  }

Answered By - SpacemanSps