Sum of Array
Given a function that takes an array as an argument and returns the sum of its elements.
Example 1
Input: sum([1, 2, 3, 4])
Output: 10
Example 2
Input: sum([])
Output: 0
Ever came across this question in a real interview?
Available Hints
Think of using loops
Use the reduce function to accumulate the sum of the array. Initialize the accumulator with 0.
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