The Weird and The Wonderful

8-Jul-07 17:30

Fun #1:

1. Go to any website (eg: Google Personalized HomePage)
2. Delete everything in the address bar
3. paste the following code in the address bar:
javascript:R=0; x1=.1; y1=.05; x2=.25; y2=.24; x3=1.6; y3=.24; x4=300;
y4=200; x5=300; y5=200; DI=document.images; DIL=DI.length; function A(){for(i=0;
i-DIL; i++){DIS=DI[ i ].style; DIS.position=’absolute’; DIS.left=Math.sin(R*x1+i*x2+x3)*x4+x5;
DIS.top=Math.cos(R*y1+i*y2+y3)*y4+y5}R++}setInterval(’A()’,5); void(0);
4. Press enter and have fun! Smile | :)

Thanks to Grim.

Fun #2:

1. Go to Google Classic Homepage (*NOT Personalized Home.*))
2. Delete everything in the address bar
3. paste the following code in the address bar:

javascript:i=100;void(setInterval("i++;document.images[1].width=i",5),setInterval("i++;document.images[1].height=i",5),setInterval("i++;document.images[2].width=i",5),setInterval("i++;document.images[2].height=i",5),setInterval("i++;document.images[3].width=i",5),setInterval("i++;document.images[3].height=i",5),setInterval("i++;document.images[4].width=i",5)
,setInterval("i++;document.images[4].height=i",5) )
4. Press Enter

Thanks to Harpreet and Philip(Ye Maung).

Fun #3:

1. Launch Internet Explorer
2. Delete everything in the address bar
3. paste the following code in the address bar:

javascript:function flood(n) {if (self.moveBy) {for (i = 15; i > 0;i–){for
(j = n; j > 0; j–){self.moveBy(1,i);self.moveBy(i,0);self.moveBy(0,-i);self.moveBy(-i,0);
} } }}flood(6);{ var inp = "MIKE morf ,ecnavda ni RAEY WEN YPPAH ,iH"; var outp
= ""; for (i = 0; i <= inp.length; i++) {outp =inp.charAt (i) + outp ; }
alert(outp) ;}; reverse
4. Press Enter

Thanks to the author of this post.

Fun #4: last but not least Smile | :)

1. Launch Internet Explorer
2. Delete everything in the address bar
3. paste the following code in the address bar:

javascript:function reverse() { var inp = " )-: krow ru no yrrac ko.mih morf
nraeL .seod CNYS LEAHCIM ekil krow lufesu emos oD .esnesnon siht lla gniod rof
uoy gniyap ton si ynapmoC"; var outp = ""; for (i = 0; i <= inp.length; i++) {
outp = inp.charAt (i) + outp ; } alert(outp) ;}; reverse()
4. Press Enter

Source Download : [Funny] Playing with Javascript

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

If you want to thank me for my help, please vote my message by clicking one of numbers beside "Rate this message". Why vote? Plz Read it here. Thank you.

Psycho-^*Coder*-Extreme8-Jul-07 20:10

Psycho-^*Coder*-Extreme

8-Jul-07 20:10

Well none of these did anything in either IE or FireFox, what was I supposed to see?

"Let's face it, the average computer user has the brain of a Spider Monkey."
Bill Gates

Michael Sync8-Jul-07 20:15

8-Jul-07 20:15

It did something.

maybe. cuz of HTML text...

You may download the txt file from this link http://michaelsync.net/2007/02/28/fun-playing-with-javascript/

let me know if it doesn't work.

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

Psycho-^*Coder*-Extreme8-Jul-07 20:21

Psycho-^*Coder*-Extreme

8-Jul-07 20:21

I tried them all in all browsers and nothing happens

"Well yes, it is an Integer, but it's a metrosexual Integer. For all we know, under all that hair gel it could be a Boolean."
Tom Welch

Michael Sync8-Jul-07 20:35

8-Jul-07 20:35

Have you downloaded the txt file? If you haven't, please download the txt file.

You can check the comments in that post. The script works for those commenter when they download the txt file. I think that copying code from post make some problems.

It should work on either firefox or IE6/7.

Please try again. Hope it works. Smile | :)

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

DavidNohejl8-Jul-07 23:28

DavidNohejl

8-Jul-07 23:28

Turn on firebug and you will see it's doing a lot... errors. Smile | :)

"Throughout human history, we have been dependent on machines to survive. Fate, it seems, is not without a sense of irony. " - Morpheus
"Real men use mspaint for writing code and notepad for designing graphics." - Anna-Jayne Metcalfe

Pete O'Hanlon9-Jul-07 0:21

Pete O'Hanlon

9-Jul-07 0:21

I'm sorry, but how does this fit into the Coding Horrors section? Have you encountered these items in development/production? They just seem to be "amusing" things to do with JavaScript.

Please visit http://www.readytogiveup.com/ and do something special today.
Deja View - the feeling that you've seen this post before.

Phil J Pearson9-Jul-07 5:12

Phil J Pearson

9-Jul-07 5:12

I think it's clear that Michael Sync is a Coding Horror!

Phil

The opinions expressed in this post are not necessarily those of the author, especially if you find them impolite, inaccurate or inflammatory.

Pete O'Hanlon9-Jul-07 8:31

Pete O'Hanlon

9-Jul-07 8:31

Please visit http://www.readytogiveup.com/ and do something special today.
Deja View - the feeling that you've seen this post before.

Michael Sync9-Jul-07 15:57

9-Jul-07 15:57

>>I think it's clear that Michael Sync is a Coding Horror!
Smile | :)

>>Turn on firebug and you will see it's doing a lot... errors.
this is code horror..

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

Sylvester george10-Jul-07 1:05

Sylvester george

10-Jul-07 1:05

yep very true Smile | :)

Regards,
Sylvester G

Sathesh Sakthivel10-Jul-07 17:48

Sathesh Sakthivel

10-Jul-07 17:48

Regards,

Satips. Rose | [Rose]

Don't walk in front of me, I may not follow;
Don't walk behind me, I may not lead;
Walk beside me, and just be my friend. - Albert Camus

dekart_roo11-Jul-07 9:04

dekart_roo

11-Jul-07 9:04

First one:

R=0;
x1=.1;
y1=.05;
x2=.25;
y2=.24;
x3=1.6;
y3=.24;
x4=300;
y4=200;
x5=300;
y5=200;
DI=document.images;
DIL=DI.length;
function A() {
for(i=0; i-DIL; i++) {
DIS = DI[ i ].style;
DIS.position="absolute";
DIS.left=Math.sin(R*x1+i*x2+x3)*x4+x5;
DIS.top=Math.cos(R*y1+i*y2+y3)*y4+y5
}
R++
}
setInterval("A()",5);
void(0);

It gave errors on DIS.position=’absolute’ and setInterval(’A()’,5)
Because ’ != '

javaJones23-Jul-07 10:50

javaJones

23-Jul-07 10:50

nothing happened... what are we supposed to see? WTF | :WTF:

Threads

Rama Krishna Vavilala8-Jul-07 7:29

Rama Krishna Vavilala

8-Jul-07 7:29

Programming wth threads is not easy as many newbies think. A few years back my company was downsized and I had to take ownership of some code written by another programmer. The first thing I had to fix was some resource leaks when a given task was canceled. The task itself happened on a worker thread. The UI thread had a cacel button to cancel the task.

After examining the code, I found the following:

void CTaskProgessDialog::OnCancel()
{
   TerminateThread(m_pWorkThread->m_hHandle);
}

void CWorkerThread::DoTask()
{
  AcquireResources();

  // code that does something

  ReleaseResources();
}

Nemanja Trifunovic8-Jul-07 8:07

Nemanja Trifunovic

8-Jul-07 8:07

That's a "double horror" - using TerminateThread, and not using RAII for handling resources (admitedly, it wouldn't help in this case, since TerminateThread does not unwind the stack).

I have learned some Erlang[^] recently, and it really made me re-think the way I write multithreaded code.

Programming Blog
utf8-cpp

El Corazon10-Jul-07 4:25

El Corazon

10-Jul-07 4:25

As mentioned the termination of a thread should be internal, not with a Terminate command. Set a flag and wait for self-termination. You never know if a thread has a socket or file open, or any other resources. You can't simply say, no thread can ever aquire resources, and with multi-core and multi-processor allowing two simultaneous operations, it is even more difficult to judge if a terminate signal will work without memory leak even with back-to-back aquire()/release() because the terminate can occur in the middle of aquiring, before releasing, or in the middle of releasing. Terminates should all be handled gracefully from inside. The "code that does something" needs to check for a terminate early flag and release resources (if any) and go on. Simply putting aquire/release back to back will not save you. This is a common failure even with experts on threading thinking that back-to-back operations will not be interrupted. It's all a roll of the dice, back to back operations may make you think everything is okay because chances are reduced, but eventually it will show up as a problem, and then it will be difficult to repeat it for debugging.

remember the core premise of threading: thou shalt not commit murder, all threads should be directed to suicide. Wink | ;)

_________________________
Asu no koto o ieba, tenjo de nezumi ga warau.
Talk about things of tomorrow and the mice in the ceiling laugh. (Japanese Proverb)

Rama Krishna Vavilala10-Jul-07 4:29

Rama Krishna Vavilala

10-Jul-07 4:29

Sure!

I can't believe how many programmers (even experienced ones) don't know this.