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Y!RegExp quiz

Monday, 18. September 2006, 13:36:27

, , , ,

This snippet is brought to you by Yahoo!Japan blogs. Quiz of the day: what is the RegExp meant to do and why does it fail?

if(img.match(/(.[jJ][pP][eE]?[gG]|.[gG][iI][fF]|.[pP][nN][gG])/)) {
return true;
}
return false;


(Yes, the variable name is a hint.)

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Comments

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Nice P:

By citoyen, # 18. September 2006, 13:58:08

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:-D
nice, very nice…

By Kildor, # 18. September 2006, 15:44:59

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So the dot matches of course any character, and they forgot the $ at the end, and they could have set the i modifier :smile:

Did I forget something?

Where did the creator learn regular expressions? (or maybe he didn't at all :wink:

By GKiller, # 18. September 2006, 16:17:11

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lol

Now that's what I call Web 2.0!

By robodesign, # 18. September 2006, 19:17:25

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That's some peculiar coding
function a(){
  if(foobar)
    return true;
  else
    return false;
}

function b(){
  if( a() )
    return true;
  else
    return false;
}

if( b() )
  return true;
else
  return false;

p:

By xErath, # 18. September 2006, 19:50:16

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I'm guessing they're trying to determine whether a file is an image, but what happens when an image file has a different extension?

BTW, the sign-up process for Opera Community appears to be almost broken/inaccessible: a captcha is presented with mixed case letters, but I couldn't proceed until I entered lowercase equivalents. It should either accept input that exactly matches the captcha, or it should ignore case.

By gemsling, # 19. September 2006, 07:12:29

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