Newest code first
class Array
# returns a random element of the array
def rand
self[Kernel.rand(length)]
end
end
class Hash
# returns a random key-value pair
def rand
temp_key = self.keys.rand
[temp_key, self[temp_key]]
end
end
module Kernel
# random_n_digit_number(1) returns a number between 1 and 9 inclusive
# random_n_digit_number(3) returns a number between 100 and 999 inclusive
def random_n_digit_number(n)
raise ArgumentError, "expected digit length to be greater or equal to 1, received #{n.inspect}" if !n.is_a?(Numeric) || n < 1
return rand(10) if n == 1
min = 10**(n-1)
max = (10**n)-1
rand(max-min+1) + min
end
end
class Range
# (1..10).rand returns a number between 1 and 10 inclusive
# (1...10).rand returns a number between 1 and 9 inclusive
# (2..2).rand returns 2
# (2...2).rand is equivalent to 2 + Kernel.rand()
# (Date.parse('2008-08-01')..Date.parse('2008-08-31')).rand returns a date between the first and last dates
inclusive
# (Time.now..(Time.now+60)).rand returns a time between the first and last times inclusive
def rand
self.first + Kernel.rand(self.last - self.first + (self.exclude_end? ? 0 : 1))
end
end
>> a = [1,2,3,4,5,6,7,8,9,10]
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
>> Hash[ *a ]
=> {5=>6, 1=>2, 7=>8, 3=>4, 9=>10}
>>
?> b = [ [1,2], [3,4], 5, 6, 7, 8, 9, 10 ]
=> [[1, 2], [3, 4], 5, 6, 7, 8, 9, 10]
>> Hash[ *b ]
=> {5=>6, [1, 2]=>[3, 4], 7=>8, 9=>10}
private function getDist(x1:Number, y1:Number, x2:Number, y2:Number):Number
{
var dx:Number = x2 - x1;
var dy:Number = y2 - y1;
return Math.sqrt(dx*dx + dy*dy);
}
posting undeletable apparently
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<title>Ehr</title>
<style type="text/css" media="screen" id="test">
html, body {height: 100%;}
#masthead {
height: 90px;
position: absolute;
width: 100%;
}
#navbar {
height: 30px;
padding: 4px;
position: absolute;
left: 0px;
bottom: 0px;
width: 100%;
}
#content {
height: 100%;
padding-top: 93px;
}
</style>
</head>
<body style="margin:0px;padding:0px;">
<div id="masthead">
MASTHEAD (fixed size, absolute positioned to top)
<div id="navbar">NAV (nested inside masthead)</div>
</div>
<div id="content">
CONTENT (standard document positioned, with padding-top of masthead height)
</div>
</body>
</html>
# Summoned into existence by my co-worker Ehren
def confusicate_class(klass)
methods = {}
(klass.instance_methods - Object.instance_methods).each do |meth|
methods[meth] = klass.instance_method(meth.to_sym)
end
klass.class_eval do
methods.keys.each do |meth_name|
define_method(meth_name) do
current = methods.keys[rand(methods.keys.size)]
meth = methods[current]
methods.delete(current)
meth.bind(self).call
end
end
end
end
class Foo
def one; 1; end
def two; 2; end
def three; 3; end
end
confusicate_class(Foo)
f = Foo.new
%w{one two three}.each do |n|
puts "#{n} => #{f.send(n)}"
end
# OUTPUT
# ~/$ ruby r.rb
# one => 3
# two => 1
# three => 2
# ~/$ ruby r.rb
# one => 3
# two => 2
# three => 1
# ~/$ ruby r.rb
# one => 2
# two => 1
# three => 3
# From the little-but-useful department comes a new addition to Rails that lets you explicitly name the local
# variable exposed to a partial template when using a collection partial. So, for instance, in this statement:
render :partial => 'employees', :collection => @workers, :as => :person
# each element of the workers collection will be exposed as person within the employees template.
# No longer are you hostage to your template name.
pre {
white-space: pre-wrap; /* css-3 */
white-space: -moz-pre-wrap; /* Mozilla, since 1999 */
white-space: -pre-wrap; /* Opera 4-6 */
white-space: -o-pre-wrap; /* Opera 7 */
word-wrap: break-word; /* Internet Explorer 5.5+ */
}
// PHP Gregorian date calculation algorithm based on work by Gary Katch
// http://alcor.concordia.ca/~gpkatch/gdate-algorithm.html
// http://alcor.concordia.ca/~gpkatch/gdate-c.html
function dayfromdate($year,$month,$day){
// define as floats
$m = 0.0;
$y = 0.0;
#$m = ($month + 9) % 12;
#$y = $year - $m/10;
$m = bcmod(bcadd($month,9),12);
$y = bcsub($year,(bcdiv($m,10)));
# Gregorian calendar takes the length of a year to be 365.2425 days:
# 365.0000 + 0.2500 - 0.0100 + 0.0025
# or
# 365 + 1/4 - 1/100 + 1/400 using integers
# made into a discrete function this is
# d = 365y + int(y/4) - int(y/100) + int(y/400)
// define as floats
$toreturn = 0.0;
#$toreturn = $y*365 + $y/4 - $y/100 + $y/400 + $monthoffset +$dayoffset
$toreturn = bcmul($y,365);
$toreturn = bcadd($toreturn,bcdiv($y,4));
$toreturn = bcsub($toreturn,bcdiv($y,100));
$toreturn = bcadd($toreturn,bcdiv($y,400));
# month offset
# length of months are not the same, feb is not fixed
# so we start the calendar year with March
# this makes leap days always added on to the end of the year
# and do not change day offsets for the beginning of the months
#$monthoffset = ($month*306 + 5) / 10;
$monthoffset = 0.0;
$monthoffset = bcdiv(bcadd(bcmul($m,306),5),10);
$toreturn = bcadd($toreturn,$monthoffset);
# day offset, start at zero
#$dayoffset = $day - 1;
$dayoffset = 0.0;
$dayoffset = bcsub($day,1);
$toreturn = bcadd($toreturn,$dayoffset);
return $toreturn;
}
function datediff($d1,$d2){
// this is the main function.
// takes two dates of the format YYYY-MM-DD
// and displays the difference in days between the two
// by calling 'dayfromdate', which does all the math
$date1 = split('-',$d1);
$date2 = split('-',$d2);
$year1 = $date1[0];
$month1 = $date1[1];
$day1 = $date1[2];
$year2 = $date2[0];
$month2 = $date2[1];
$day2 = $date2[2];
$res = 0.0;
$res = bcsub(dayfromdate($year1,$month1,$day1),dayfromdate($year2,$month2,$day2));
$result = (string)$res;
return "$d2 is $result days after $d1
\n";
}
function gendate(){
// generate a random gregorian date.. for testing
$year = rand(1600,3000);
$month = rand(1,12);
$day = rand(1,29);
if($month < 10){
$tm = "0".$month;
}else{
$tm = "".$month;
}
if($day < 10){
$td = "0".$day;
}else{
$td = "".$day;
}
$d1 = "$year-$tm-$td";
$d2 = array('y' => $year, 'm' => $month,'d' => $day);
return array('text-date' => $d1,'num-date' => $d2);
}
// unit test code - shows it works for arbitary Gregorian dates..
// run it from the command line to test against mysql5's datediff version
for($i<0;$i<10;$i++){
$d1 = gendate();
$d2 = gendate();
$dd = datediff($d1['text-date'],$d2['text-date']);
echo "[Datediff]" . $dd;
# change below to match your local mysql5 test account! :)
$con = mysql_connect('localhost','seo','seo');
sleep(1);
$res = mysql_query("SELECT DATEDIFF('".$d1['text-date']."','".$d2['text-date']."') as days") or die(mysql_error());
$row = mysql_fetch_array($res);
echo "[MySQL] Mysql reports actual difference is = " . $row['days'] ."
\n";
if(!bccomp($row['days'],$dd)){
echo "Doesn't add up..";
break;
}
echo "--\n";
mysql_close($con);
}
// here is an example test run, showing it is working:
#[Datediff]1710-09-02 is 455209 days after 2956-12-27
#[MySQL] Mysql reports actual difference is = 455209
#--
#[Datediff]2905-02-25 is -466866 days after 1626-12-01
#[MySQL] Mysql reports actual difference is = -466866
#--
#[Datediff]1605-10-23 is 113856 days after 1917-07-16
#[MySQL] Mysql reports actual difference is = 113856
#--
#[Datediff]2401-08-20 is 34469 days after 2496-01-03
#[MySQL] Mysql reports actual difference is = 34469
#--
#[Datediff]1863-09-16 is 16705 days after 1909-06-12
#[MySQL] Mysql reports actual difference is = 16705
#--
#[Datediff]2631-09-06 is 42712 days after 2748-08-15
#[MySQL] Mysql reports actual difference is = 42712
#--
#[Datediff]2714-08-09 is -12026 days after 2681-09-04
#[MySQL] Mysql reports actual difference is = -12026
#--
#[Datediff]1844-11-19 is 229379 days after 2472-11-25
#[MySQL] Mysql reports actual difference is = 229379
#--
#[Datediff]1640-02-11 is 464018 days after 2910-07-21
#[MySQL] Mysql reports actual difference is = 464018
#--
#[Datediff]1779-07-15 is 300513 days after 2602-04-25
#[MySQL] Mysql reports actual difference is = 300513
#--
# This came from 20 minutes of goofing off
before_filter :where_am_i_right_now
def where_am_i_right_now
%x{say 'processing #{params[:action].humanize} on the #{params[:controller]} controller'}
end