Shoutbox

i know the registry options are limited but is tere away to find out if a certain string exhists? Im doing this becuase the script chucks out an error if i try to read from a string tht doesnt exhist.

Thanks jon

I use this to check if a key exists.

It returns true if it does, and false if it doesn't exist.

Btw, it doesn't check for a value, just a key. But you can modify it. Instead of "return true", make it "return tmp" and check the returned value with whatever you want.

code:

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function isreg(path) {
var reg, tmp;
  try {
  reg = new ActiveXObject("WScript.Shell");
  tmp = reg.RegRead(RegUserPath + path);
   if(tmp != "") return true;
  } catch(e) {
  return false;
  }
}

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This is just a workaround, not a real solution, but it works and prevents the script from returning an error.

You can read more of try...catch...finally in the MSDN library.

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quote:

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Originally posted by RaceProUK

quote:

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Originally posted by Leonardo
if(tmp != "") return true;

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code:

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return tmp != "";

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Oh, genious.

Seriously people, is there a difference? Except from saving 0.00001 second and a couple of bytes, is there really a difference? No? Then, let it go.

http://mattyg.ca/geshi/registry.php

My registry module has KeyValueExist among other functions

CreateKey
DeleteKey
DeleteKeyValue
KeyExist
SetDWordValue
SetStringValue
GetDWordValue
GetStringValue

Will be including an EnumRegistryKeys and possibly Get/Set Binary keys.

quote:

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Originally posted by Leonardo
if(tmp != "") return true;

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code:

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return tmp != "";

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thanks matty your scripts worked great

quote:

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Originally posted by Leonardo
Seriously people, is there a difference? Except from saving 0.00001 second and a couple of bytes, is there really a difference? No? Then, let it go.

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yes there is a difference. and "return tmp != "";" is prefereable.

Moreover, checking if tmp is empty isn't a good thing todo as keys can also be empty (yet existing). That line should actually just be "return true".

I already said in that post of mine, that if the person wants to directly return the string, then they simply change that part.

As for the empty string, true. But that function is specifically done for that purpose. I just kindly gave it out as an example.

This all makes me think I shouldn't be that kind after all, seeing everytime I do someone complains about my coding, or simply steals it.

* L. Coyote learns from mistakes.

quote:

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Originally posted by Leonardo
This all makes me think I shouldn't be that kind after all, seeing everytime I do someone complains about my coding, or simply steals it.

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Get over it already! I'm actually slightly offended that you think I complain about other people's code: I don't, I suggest improvements. And I expect people to suggest improvements to my code.