模板:Ifnoteq then show/doc
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This template tests whether the first unnamed parameter is equal to the second unnamed parameter and returns the third unnamed parameter if it does. Otherwise it returns the first unnamed parameter.
This is useful when the first parameter is a {{#invoke: }} of a Lua module that returns a value for which a specific exception is required. Because it uses the {{#invoke: }} just once, it simplifies the coding of infoboxes, for example.
用法[编辑]
An infobox field may return the Module:Wikibase第27行Lua错误：attempt to index field 'wikibase' (a nil value) (P17) for an article about a city. We may wish to use the abbreviation "USA" in place of "United States".
- Module:Wikibase第27行Lua错误：attempt to index field 'wikibase' (a nil value) (P17) for Module:Wikibase第27行Lua错误：attempt to index field 'wikibase' (a nil value) (Q42462)
{{#invoke:WikidataIB |getValue |P17 |qid=Q42462 |fwd=ALL |osd=no |rank=best |noicon=true}}→ Module:WikidataIB第759行Lua错误：attempt to index field 'wikibase' (a nil value){{Ifnoteq then show|{{#invoke:WikidataIB |getValue |P17 |qid=Q42462 |fwd=ALL |osd=no |rank=best |noicon=true}}|United Kingdom|UK}}→ Module:WikidataIB第759行Lua错误：attempt to index field 'wikibase' (a nil value)
- Module:Wikibase第27行Lua错误：attempt to index field 'wikibase' (a nil value) (P17) for Module:Wikibase第27行Lua错误：attempt to index field 'wikibase' (a nil value) (Q60)
{{#invoke:WikidataIB |getValue |P17 |qid=Q60 |fwd=ALL |osd=no |rank=best |noicon=true}}→ Module:WikidataIB第759行Lua错误：attempt to index field 'wikibase' (a nil value){{Ifnoteq then show|{{#invoke:WikidataIB |getValue |P17 |qid=Q60 |fwd=ALL |osd=no |rank=best |noicon=true}}|United States|USA}}→ Module:WikidataIB第759行Lua错误：attempt to index field 'wikibase' (a nil value)