Difference between revisions of "Template:Is empty"

Latest revision as of 14:36, 23 January 2013

Template documentation

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.

Usage

Logic: if not x then 1.; if x then <null>.

Examples

{{#if:{{is empty| }}|empty|not empty}} → empty

{{#if:{{is empty|value}}|empty|not empty}} → not empty

The above documentation is transcluded from Is empty/doc. (edit \| history) Editors can experiment in this template's sandbox (create \| mirror) and testcases (create) pages. Please add categories and interwikis to the /doc subpage. Subpages of this template.

Revision as of 09:16, 20 September 2010 (view source) TFOWR (Talk) m (Unprotected Template:Is empty: Consensus at WP:ANI was to unprotect; emerging consensus at WT:HRT may yet be to re-protect some/many/all - I won't consider it wheel-warring if another admin reprotects. using TW)	Latest revision as of 14:36, 23 January 2013 (view source) JKN (Talk \| contribs) m (1 revision)
(No difference)