kv109

<h2>My To Do list</h2>
<ul>
  <li>
    Go to the mall
  </li>
  <li>
    Send a letter
  </li>
  <li>
    Pay the bill

kv109

regexp = '\w(\d)'
string = 'abc123!@#'

# 1st way - with #findall
occurances = re.findall(regexp, string)

print 'regexp:', regexp
print 'string:', string
print 'occurances:', occurances

kv109

f = open('my_file', 'w')
f.write("writing to file, line 1\n")
f.write("writing to file, line 2\n")
f.close()

f = open('my_file', 'r')
for line in f.readlines():
	print line

kv109

xboxdrv --trigger-as-button --wid 0 --led 2 --deadzone 4000 --silent &
sleep 1
xboxdrv --trigger-as-button --wid 1 --led 3 --deadzone 4000 --silent &
sleep 1
xboxdrv --trigger-as-button --wid 2 --led 4 --deadzone 4000 --silent &
sleep 1
xboxdrv --trigger-as-button --wid 3 --led 5 --deadzone 4000 --silent &

kv109

#example.rb
class Example
	def initialize(method_name)
		send method_name
	end
end


#example_test.rb
require 'mocha'

kv109

<span 	
	onmousedown='document.getElementById("display").innerHTML += "mousedown<br />"' 
	onclick='document.getElementById("display").innerHTML += "click<br />"'
	onmouseup='document.getElementById("display").innerHTML += "mouseup<br />"'>
	Click me!
</span>

<br />
<span id='display'>
</span>

kv109

class Time  

  def last_month_day
    Date.new(self.year, self.mon, -1).day
  end

end

kv109

def method(var = 123)
	var+=1
end

def another_method(var)
	var ||= 123
	var+=1
end

method(nil)			#first method raises <<undefined method `+' for nil:NilClass>>

kv109

(1..5).map{|n|n.succ}
(1..5).map(&:succ)

kv109

def method(arg)
	#<<arg>> is not a local copy of global variable - <<string>> and <<arg>> are the same object.
	arg.upcase!
	arg.object_id	#We will return object_id to see if it's true
end

string = 'John'
id = string.object_id
id2 = method(string)
id == id2	#=> true