ph3nx

array = [3,7,1,9,2,12,34,0]

# sort in ascending order
array.sort
# => [0, 1, 2, 3, 7, 9, 12, 34]

# sort in descending order
array.sort.reverse
# => [34, 12, 9, 7, 3, 2, 1, 0]

ph3nx

a1 = "A Test"
a2 = "A Boom"

a1 <=> a2
# => 1

b1 = "2"
b2 = "9"

b1 <=> b2

ph3nx

def by_three? number
    number % 3 == 0 ? true : false
end

by_three? 5
# => false

by_three? 9
# => true

ph3nx

def greet message, *people
    people.each { |p| puts "#{message}, #{p}!" }
end

greet "Hello", "Tony", "Ann", "BadMan"

ph3nx

def english_2_pig_latin string
    string.split(/ /).each do |word|
        word << word[0] << "ay "
        print word[1..word.length]
    end
end

ph3nx

def list_to_frame list=[]
    list = ["Hello", "World", "in", "a", "frame"] if list.empty?
    
    longest = 0
    
    list.each do |element|
        longest = element.length if longest < element.length
    end
    
    (0..longest+3).each do

ph3nx

def prime_numbers max
    for i in (2..max) do
        for j in (2..i) do
            break if i%j == 0
        end
        p "#{i} is a prime number." if i == j
    end
end

require 'prime'

ph3nx

def tbl max
    for y in (1..max) do
        for x in (1..max) do
            sol = y*x
            if sol < 10
                print "#{sol}    "
            elsif sol < 100
                print "#{sol}   "
            else
                print "#{sol}  "

ph3nx

def sum_or_product
    print 'Enter any number bigger 1: '
    num = gets.to_i
    
    print 'sum [s] or product [p]? '
    opt = gets.chomp
    
    if opt == 's'
        (1..num).inject :+
    elsif opt == 'p'

ph3nx

def sum_to
    print 'Enter any number greater than 1: '
	input = gets.to_i
	
	sum = 0
	
	for a in 1..input do
		sum += a
	end