isPropertyEmpty: Difference between revisions

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m (Added version.)
m (Updated with recent version changes.)
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{{stub|Examples using the new functionality.}}
{{MacroFunction
{{MacroFunction
|name=isPropertyEmpty
|name=isPropertyEmpty
|version=1.3b48
|version=1.3b48
|description=
|description=
Returns 1 if the [[Token:token property|token property]] for the [[Token:Current Token|Current Token]] is empty. A [[Token:token property|token property]] is empty if it is null, if an empty string ("") has been assigned to it, it is not considered empty.
Returns {{true}} if the [[Token Property]] for a specific [[Token]] is empty. A [[Token Property]] is considered empty if it is {{code|NULL}}; if an empty string ({{code|""}}) has been assigned to it, it is not considered empty.


|usage=
|usage=
<source lang="mtmacro" line>
<source lang="mtmacro" line>
isPropertyEmpty("propertyName")
isPropertyEmpty(property)
</source>
</source>
<source lang="mtmacro" line>
isPropertyEmpty(property, id)
</source>
'''Parameters'''
{{param|property|The name of the property that has its value checked.}}
{{param|id|The token {{code|id}} of the token that has its value checked, defaults to the [[Current Token]]. {{TrustedParameter}} }}


|example=
|example=
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[r, if(isPropertyEmpty("propertyName")): propertyName = someDefaultValue]
[r, if(isPropertyEmpty("propertyName")): propertyName = someDefaultValue]
</source>
</source>
|also=
[[resetProperty|resetProperty()]],
[[getProperty|getProperty()]],
[[setProperty|setProperty()]]
|changes=
{{change|1.3b51|Added {{code|id}} parameter option.}}
}}
}}
[[Category:Token Function]]
[[Category:Token Function]]

Revision as of 04:37, 31 March 2009

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isPropertyEmpty() Function

Introduced in version 1.3b48
Returns true(1) if the Token Property for a specific Token is empty. A Token Property is considered empty if it is NULL; if an empty string ("") has been assigned to it, it is not considered empty.

Usage

isPropertyEmpty(property)
isPropertyEmpty(property, id)

Parameters

  • property - The name of the property that has its value checked.
  • id - The token id of the token that has its value checked, defaults to the Current Token.

     Note: This parameter can only be used in a Trusted Macro

Example

[r, if(isPropertyEmpty("propertyName")): propertyName = someDefaultValue]

See Also

Version Changes

  • 1.3b51 - Added id parameter option.