Calculate the Total Marathon Length
Mary is excited to participate in a marathon, but when she signs up, she realizes that the total distance isn't mentioned in one clear number. Instead, the marathon length is broken down into smaller portions listed separately.
Mary needs to know the full distance she'll be running, so she asks you to help her by calculating the total length of the marathon.
Instructions:
-
Write a function named
calculateMarathonLengththat takes an array of numbers representing the different portions of the marathon distance. -
The function should return the total distance of the marathon by summing up all the portions.
Note: Only use the map, filter, or reduce methods, or a combination of these methods, to solve the problem. Do not use loops to iterate or perform the operation.
Example 1
Input: calculateMarathonLength([3, 7, 8, 2, 5]);
Output: 25
Example 2
Input: calculateMarathonLength([7, 6, 8]);
Output: 21
Example 3
Input: calculateMarathonLength([10, 5]);
Output: 15
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