Template:Is empty
外观
概要
[编辑]Returns true if the first parameter is assigned no value. It can be useful in de-obfuscating wiki markup. It was created to facilitate adding tracking categories.
參數及使用方法
[编辑]- Logic
- if not
x
then1
. - if
x
then <null>.
範例
[编辑]{{#if:{{is empty| }}|empty|not empty}}
→ empty
{{#if:{{is empty|value}}|empty|not empty}}
→ not empty