ph3nx

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

by_three? 5
# => false

by_three? 9
# => true

ph3nx

def timestamp
  Time.now.to_i
end

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

<!-- JW Player Library -->
<script src="http://jwpsrv.com/library/MCK8hplLEeOY0CIACmOLpg.js"></script>

<!-- div for the player -->
<div id='playerKXSDPIwKERSv'></div>

<!-- Script to display video file in the player div -->
<script type='text/javascript'>
    jwplayer('playerKXSDPIwKERSv').setup({
        // URL to the video file

ph3nx

def alphabetize arr, rev=false
  if rev
    arr.sort.reverse
  else
    arr.sort
  end
end

puts alphabetize ["b","e","a"], true
# => ["e","b","a"]

ph3nx

<?php

function random_string($length) {
	
	$LETTERS = 'abcdefghijklmnopqrstuvwxyz';
	$random_string = '';
	
	for ($i=0; $i < $length; $i++) {
		$random_string = $random_string.$LETTERS[rand(0, strlen($LETTERS)-1)];
	}

ph3nx

floats = [1.2, 3.45, 0.91, 7.727, 11.42, 482.911]
# Write your code below this line!
round_down = Proc.new { |f| f.floor }


# Write your code above this line!
ints = floats.collect(&round_down)

ph3nx

case var
  when 1
    puts 1
  when 2
    puts 2
  else
    puts 'none'
end

case var

ph3nx

require 'benchmark'

string_AZ = Hash[("a".."z").to_a.zip((1..26).to_a)]
symbol_AZ = Hash[(:a..:z).to_a.zip((1..26).to_a)]

string_time = Benchmark.realtime do
  100_000.times { string_AZ["r"] }
end

symbol_time = Benchmark.realtime do