javascript

The appFunc 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. Write a function called appFunc that receives an array (arr) and a function (func) as a parameter. appendArray that receives two arrays (arr1 and arr2). The function should use a loop append all the elements of arr2 on the end of arr1. no methods of Array class that will perform the operation for you in one step

function sq(ele) {

return ele * ele;

}

var arr = [1, 2, 3, 4];

appFunc(arr, sq);