Reduce Into an Object
Reduce Into an Object
reduce does not have to return a number. The accumulator can be an object that grows as each item contributes information.
Counting by a property is a practical example: the source array can contain statuses you did not know ahead of time, so the accumulator must create keys as it encounters them. A good implementation handles repeated statuses, new statuses, and an empty list.
Your task: Complete countTicketsByStatus so it returns an object where each key is a ticket status and each value is the number of tickets with that status.
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Reduce Into an Object
reduce does not have to return a number. The accumulator can be an object that grows as each item contributes information.
Counting by a property is a practical example: the source array can contain statuses you did not know ahead of time, so the accumulator must create keys as it encounters them. A good implementation handles repeated statuses, new statuses, and an empty list.
Your task: Complete countTicketsByStatus so it returns an object where each key is a ticket status and each value is the number of tickets with that status.