మూస:Missing param
This helper template provides a means of testing if a specified number of parameters are defined. It will test n parameters n is between 1 and 10. It is intended to be used in other templates.
Returns the a number which indicates the first undefined parameter or the empty string if all parameters are defined. n specifies the number of parameters expected.
Usage
{{missing param|n=4|1|2|3|4}} →
{{missing param|n=4|1| |3|4}} → 2
{{missing param|n=4|1|2|3| }} → 4
Examples
{{Error
| {{#switch: {{missing param|n=3|1| |3}}
| 1 = The 1st parameter is missing.
| 2 = The 2nd parameter is missing.
| 3 = The 3rd parameter is missing.
| ... }} }}
→ The 2nd parameter is missing.
{{#if: {{missing param|n=3|1| |3}}
| There is a missing parameter.
| ...
}}
→ There is a missing parameter.
See also
- {{Error}}
- {{Citation error}}
- {{If all}}