ary = [1,2,3,4,6,7,5,4,3,3]

array2 = ["hanging",'with','friends','is','super','fun']

# TODO: Return the odd numbers from a list of integers.
#       Use #select.
def odd_integers(array)
	array.select!{ |number| number.odd? }
    p array
end


# TODO: Return the first number from an Array that is less than a particular number - 'limit.'
#       Use #find.
def first_under(array, limit)
   p array.find_all{ |number| number <= limit }

end

# TODO: Take an Array of Strings and return a new Array with an exclamation point appended to each String.
#       Use #map.
def add_bang(array)
	array.map!{ |el| el +"!"}
  p  array
end

def rotate_to_vowel(string)
	new_str = string.split('').rotate!
	p new_str
	until new_str[0] == (/[aeiou]/)
	new_str = string.split('').rotate!
	end
end

# TODO: Calculate the sum of an Array of numbers.
#       Use #reduce.
def sum(array)
	p array.reduce(:*)
end

# TODO: Reorganize an Array of the elements into groups of 3, and then sort each group alphabetically.
#       Use #each_slice in combination with other enumerable methods.
def sorted_triples(array)
end

# TODO: Returns an array of elements at indices 1, 3, 5, 7, etc.
#       Use #each_with_index.
def odd_indexed_elements(array)
end

rotate_to_vowel("FRIENDS")


add_bang(array2)
first_under(ary,5)
sum(ary)
odd_integers(ary)