What does the following JavaScript code snippet do? Code: let numbers = [1, 2, 3, 4, 5]; let avg = numbers.reduce((total, num) => total + num, 0) / numbers.length; console.log(avg); | JavaScript | MYTAT

Q

What does the following JavaScript code snippet do? Code: let numbers = [1, 2, 3, 4, 5]; let avg = numbers.reduce((total, num) => total + num, 0) / numbers.length; console.log(avg);

A). A) Calculates the sum of numbers in numbers B). B) Finds the maximum number in numbers C). C) Calculates the average of numbers in numbers D). D) Checks if all numbers in numbers are even

Answer & Solution

Answer: Option C

Solution:

The code snippet calculates the average of all numbers in the array numbers using the reduce method to find the sum and then dividing by the length of the array. The reduce method takes a callback function as an argument, which receives two parameters (total and num). It starts with an initial value of 0 and adds each number from the array numbers to the total in each iteration. After iterating through all elements, it divides the sum by the length of the array to get the average. In this case, the sum of elements 1 + 2 + 3 + 4 + 5 = 15, and the average is 15 / 5 = 3. Therefore, the output of the code is 3.

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