Discuss the below:
Q1: Write a function called applyFunction that receives an array (arr) and a function (func) as a parameter. The applyFunction code should then repeatedly call the parameter function on each element in the array, storing the result back into the array at the same point.
Q2: Write a function called appendArray that receives two arrays (arr1 and arr2) as parameters. The function should use a loop append all the elements of arr2 on the end of arr1. You may not use any method of the Array class that will perform the operation for you in one step (i.e. the concat or join methods.