Create a total of an array of numbers in RubyMotion

Question

How would i create an array in RubyMotion and then display a total of every number in the array.

For example - Array[1..20] I want to display a total of 1+2+3+4+5+6....up to and including 20. So the total in this case would be 210.

I'm sure this is fairly straight forward but I am relatively new to RubyMotion and arrays bend my minuscule brain.

Cheers for any help

Answer 1

With a loop:

numberArray = [1, 2, 3, 4]
total = 0

numberArray.each do |number|
 total += number
end

Where the += operator means:

x += y

is equal to

x = x + y

Edit :

def getSum(my_array)
    total = 0
    my_array.each do |number|
        total += number
    end
    total
end
numberArr = [1,2,3,4]
total = getSum(numberArr)
label.text = "#{total}"

I cannot test right now, but it should work.