JavaScript functions

Question

This is not really the question. But what would the template look like for something like this so that I can apply to questions??

Write some code to do the following:

1. Write a function theMean that takes in three parameters, array1, array2, and array3.
2. This function is responsible for computing the average value of all three arrays regardless of the array size of each.
3. The function should return the mean value.

Answer 1

A function in Javascript named theMean would start off with the line:

function theMean() {

Then you would add the arguments to the function:

function theMean(array1, array2, array3) {

Inside of the body of the function you would then take the average of the arrays. You would want to take the sum of each item in the three arrays and divide them by the total amount of items in the array.

For an array named array you would take the sum by looping through each item and counting them up.

let total = 0;

const length = array.length;

for (let i = 0; i < length; i += 1) {

total += array[i];

}