Difference between revisions of "IS DATE()"
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==Purpose== | ==Purpose== | ||
Function to check whether an expression is a date | Function to check whether an expression is a date | ||
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==Syntax== | ==Syntax== | ||
IS_DATE(<exp>) | IS_DATE(<exp>) | ||
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==See Also== | ==See Also== | ||
[[IS_ARRAY()]], [[IS_FLOAT()]], [[IS_INT()]], [[IS_LOGICAL()]], [[IS_NUMERIC()]], [[IS_OBJECT()]], [[IS_STRING()]], [[ISALPHA()]], [[ISDIGIT()]], [[ISLOWER()]], [[ISUPPER()]], [[LOCAL]], [[PRIVATE]], [[PUBLIC]], [[RELEASE]], [[RESTORE]], [[SAVE]], [[TYPE()]] | [[IS_ARRAY()]], [[IS_FLOAT()]], [[IS_INT()]], [[IS_LOGICAL()]], [[IS_NUMERIC()]], [[IS_OBJECT()]], [[IS_STRING()]], [[ISALPHA()]], [[ISDIGIT()]], [[ISLOWER()]], [[ISUPPER()]], [[LOCAL]], [[PRIVATE]], [[PUBLIC]], [[RELEASE]], [[RESTORE]], [[SAVE]], [[TYPE()]] | ||
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==Description== | ==Description== | ||
The IS_DATE() function returns .T. (true) if the specified expression is a date value, otherwise .F. (false). | The IS_DATE() function returns .T. (true) if the specified expression is a date value, otherwise .F. (false). | ||
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==Example== | ==Example== | ||
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.T. | .T. | ||
</code> | </code> | ||
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==Products== | ==Products== | ||
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[[Category:Documentation]] | [[Category:Documentation]] | ||
[[Category:Functions]] | [[Category:Functions]] | ||
− | [[Category: | + | [[Category:Formatting Functions]] |
− | [[Category: | + | [[Category:Lianja VFP Extensions]] |
+ | [[Category:VFP Function Extensions]] |
Latest revision as of 08:11, 4 February 2013
Purpose
Function to check whether an expression is a date
Syntax
IS_DATE(<exp>)
See Also
IS_ARRAY(), IS_FLOAT(), IS_INT(), IS_LOGICAL(), IS_NUMERIC(), IS_OBJECT(), IS_STRING(), ISALPHA(), ISDIGIT(), ISLOWER(), ISUPPER(), LOCAL, PRIVATE, PUBLIC, RELEASE, RESTORE, SAVE, TYPE()
Description
The IS_DATE() function returns .T. (true) if the specified expression is a date value, otherwise .F. (false).
Example
> ? is_date(date()) .T. > ? is_date({12/12/2010}) .T.
Products
Lianja, Lianja Server