[Valid_Date]
[Valid_Date] checks whether a string contains a valid date or not. The tag returns True if the parameter is in a format that Lasso can parse or False otherwise.
Built-in date formats include U.S. date format '7/4/2003 12:34:56', MySQL date format '2003-07-04 12:34:56' and others. See the [Date] tag for a full list of supported formats.
If an optional -Format parameter is specified then the date string will be checked against that format. See the [Date] tag for a full list of tokens which can be used in the -Format parameter.
- Syntax
- Parameters
[If: (Valid_Date: '12/31/1987')] ... [/If]
[If: (Valid_Date: '1987-12-31')] ... [/If]
[If: (Valid_Date: '31|1987|12', -Format='%d|%Y|%m')] ... [/If]Examples
To check whether a tag is valid:
Use the [Valid_Date] tag. The following example tests several different dates to see if they are valid or not. Either True or False is returned for each test.
[Valid_Date: '12/25/2003']
[Valid_Date: 'Christmas']
[Valid_Date: '2003-12-25 1:35:35']Result:
True
False
True
| Tag Link | [Valid_Date] | Category | Utility |
|---|---|---|---|
| Type | Substitution | Data Source | Any |
| Support | Preferred | Version | 7.0 |
| Output Type | Boolean | Security | None |
| Implementation | Sets | Lasso 7.0 | |
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