Difference between revisions of "NULL KEY"
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In most applications NULL_KEY isn't needed; an empty string will suffice. | In most applications NULL_KEY isn't needed; an empty string will suffice. | ||
Like any string constants longer then | Like any string constants longer then 3 characters and used in multiple places in the code, they should be store in a global variable. The result will be a considerable memory savings. | ||
|examples=<pre> | |examples=<pre> | ||
integer isKey(key in) { | integer isKey(key in) { | ||
Revision as of 19:03, 15 August 2007
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Description
Constant: string NULL_KEY = "00000000-0000-0000-0000-000000000000";The string constant NULL_KEY has the value "00000000-0000-0000-0000-000000000000"
While technically a string constant, it is only useful as a key.
Despite fitting the syntax criteria to be a valid key, when fed to a Conditional as a key it executes as false.
In most applications NULL_KEY isn't needed; an empty string will suffice.
Like any string constants longer then 3 characters and used in multiple places in the code, they should be store in a global variable. The result will be a considerable memory savings.
Caveats
Related Articles
Functions
| • | llAvatarOnSitTarget | |||
| • | llDetectedKey | |||
| • | llGetNotecardLine | |||
| • | llGetLandOwnerAt | |||
| • | llGetPermissionsKey | |||
| • | llGetTexture | |||
| • | llListen |
Events
| • | attach |
Examples
integer isKey(key in) {
if(in) return 2;
return (in == NULL_KEY);
}//returns 2 if it's a valid key, 1 if it's NULL_KEY
Notes
test