There are multiple ways to append values onto an array
var exampleArray = [1,2,3,4,5]
exampleArray.append(6)
//exampleArray = [1, 2, 3, 4, 5, 6]
var sixOnwards = [7,8,9,10]
exampleArray += sixOnwards
//exampleArray = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
and remove values from an array
exampleArray.removeAtIndex(3)
//exampleArray = [1, 2, 3, 5, 6, 7, 8, 9, 10]
exampleArray.removeLast()
//exampleArray = [1, 2, 3, 5, 6, 7, 8, 9]
exampleArray.removeFirst()
//exampleArray = [2, 3, 5, 6, 7, 8, 9]