Javascript

Create a new object from the “activity[]” below with the Employee ID as the property key (Group by
Employee ID) with an array of activities for each employee. Output should be a 2D array. Avoid using
for loops to iterate the array when building this new array object.


var activity=[
{
"ID": 64,
"UserID": 7,
"EmployeeID": "CLGAXO",
"SiteName": "MULGRAVE",
"BusinessUnitName": "Telstra Logistics - Melbourne",
"AccountName": "IBM AUSTRALIA LTD",
"GroupName": "Transport",
"CategoryName": "Activity - Productive",
"TypeName": "Transport - Freight Sorting",
"Date": "2018-02-14",
"Duration": "00:30",
"IsProcessed": false
},
{
"ID": 66,
"UserID": 7,
"EmployeeID": "CLGAXO",
"SiteName": "MULGRAVE",
"BusinessUnitName": "Telstra Logistics - Melbourne",
"AccountName": "IBM AUSTRALIA LTD",
"GroupName": "Picking",
"CategoryName": "Activity - Productive",
"TypeName": "Picking - Bulk",
"Date": "2018-02-15",
"Duration": "00:30",
"IsProcessed": false
},
{
"ID": 67,
"UserID": 7,
"EmployeeID": "CLGAXO",
"SiteName": "MULGRAVE",
"BusinessUnitName": "Telstra Logistics - Melbourne",
"AccountName": "IBM AUSTRALIA LTD",
"GroupName": "CPE RASS",
"CategoryName": "Activity - Productive",
"TypeName": "CPE RASS",
"Date": "2018-02-15",
"Duration": "00:15",
"IsProcessed": false
},
{
"ID": 71,
"UserID": 7,
"EmployeeID": "CLGAXO",
"SiteName": "MULGRAVE",
"BusinessUnitName": "Telstra Logistics - Melbourne",
"AccountName": "IBM AUSTRALIA LTD",
"GroupName": "Inventory",
"CategoryName": "Activity - Unproductive",
"TypeName": "Inventory Relocation's",
"Date": "2018-02-15",
"Duration": "01:30",
"IsProcessed": false
},
{
"ID": 72,
"UserID": 5,
"EmployeeID": "HENDERSA",
"SiteName": "MULGRAVE",
"BusinessUnitName": "Telstra Logistics - Melbourne",
"AccountName": "IBM AUSTRALIA LTD",
"GroupName": "CPE",
"CategoryName": "Activity - Productive",
"TypeName": "CPE",
"Date": "2018-02-15",
"Duration": "00:30",
"IsProcessed": false
},
{
"ID": 90,
"UserID": 5,
"EmployeeID": "HENDERSA",
"SiteName": "MULGRAVE",
"BusinessUnitName": "Telstra Logistics - Melbourne",
"AccountName": "IBM AUSTRALIA LTD",
"GroupName": "CPE RASS",
"CategoryName": "Activity - Productive",
"TypeName": "CPE RASS",
"Date": "2018-03-14",
"Duration": null,
"IsProcessed": false
}
];