| Code | Sandbox | Current | |
{{If empty/sandbox}} | | | Returns an empty string. |
{{If empty/sandbox|one}} | | one | Returns the first parameter that is defined and not empty. |
{{If empty/sandbox|one|two}} | | one | |
{{If empty/sandbox|one|two|three|four}} | | one | |
{{If empty/sandbox||two}} | | two | The first parameter is empty/undefined, so is passed over. |
{{If empty/sandbox||two|three|four}} | | two | |
{{If empty/sandbox||two||four}} | | two | |
{{If empty/sandbox|||||||||nine}} | | nine | |
{{If empty/sandbox||||||||||ten}} | | ten | Empty string returned if maximum of nine parameters exceeded. |
{{If empty/sandbox|}} | | | The only parameter is empty or undefined, so returns an empty string. |
{{If empty/sandbox||||}} | | | Returns an empty string. |
{{If empty/sandbox|{{{1|}}}|{{{2|}}}|three}} | | three | |
{{If empty/sandbox|{{{1}}}|{{{2}}}|three}} | | {{{1}}} | No pipe-characters following the names of the first two parameters ("1" and "2"), so the first of these returned as text ("{{{1}}}"). |
{{If empty/sandbox|{{{logo|}}}|two}} | | two | |
{{If empty/sandbox|{{{logo}}}|two}} | | {{{logo}}} | No pipe-character following the parameter name "logo", so the text "{{{logo}}}" returned. |
{{If empty/sandbox|2=x}} | | | Unnamed parameters must be defined sequentially. |
{{If empty/sandbox|p=q}} | | | The template identifies the parameters it receives as parameters 1 to 9, not using names such as "p", etc. |
{{If empty/sandbox|one|{{X1}}[[Category:X1]]}} | | one | Parameters after the first non-empty parameter are not expanded, so this page does not transclude Template:X1 and is not in Category:X1. |
