32.linkedNumbersSum

Write a function named linkedNumbersSum that receives one parameter

an object representing the start node of a linked list. It has 2 properties:
- value - representing a number
- next - representing the next node in the linked list (or null if there is no next node)

The function should return the sum of all the numbers in the linked list.

Example 1

node

We have a linked list with 3 nodes. The sum of the values of the nodes is 6.

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