Create a function addToArray that adds 'orange' to the end of an array using push and logs the result.

Create a function findElement that checks if 'banana' exists in the array using indexOf and logs the index.

Create a function removeElement that removes the last item of the array using pop and logs the updated array.

Create a function emptyArray that sets an array to empty.

Create a function combineAndSlice that combines two arrays and slices the result from index 1 to 3.

Create a function useSpreadOperator that merges two arrays using the spread operator and logs the result.

Create a function cloneArray that creates a shallow copy of an array using the spread operator.

Create a function arrayDestructuring that extracts the first and second elements using destructuring and logs them.

Create a function iterateArray that logs each element of an array using forEach.

Create a function joinArray that joins array elements with a dash ('-') and logs the result.

Create a function sortArray that sorts a number array in ascending order using sort().

Create a function testAllElements that checks if all numbers in the array are positive using every().

Create a function filterArray that returns only even numbers from an array using filter().

Create a function mapArray that doubles each number in an array using map() and logs the result.

Create a function reduceArray that returns the sum of all elements in an array using reduce().