2014-04-10 18:56:51 +00:00
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created: 20140410103123179
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2015-01-24 21:18:44 +00:00
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modified: 20150124191952000
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tags: [[Filter Operators]] [[Common Operators]] [[Field Operators]] [[Negatable Operators]]
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2015-01-18 18:39:00 +00:00
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title: has Operator
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2014-04-10 18:56:51 +00:00
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type: text/vnd.tiddlywiki
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2015-01-18 18:39:00 +00:00
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caption: has
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2015-01-24 21:18:44 +00:00
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purpose: filter the input by field existence
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2015-01-18 18:39:00 +00:00
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<$macrocall $name=".operator-def"
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syntax="has[f]"
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2015-01-24 21:18:44 +00:00
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input="a [[selection of titles|Title Selection]]"
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parameter="the name of a [[field|TiddlerFields]]"
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paramName="f"
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2015-01-24 21:18:44 +00:00
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output="those input tiddlers in which field <<.place f>> has a non-empty value"
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negationOutput="those input tiddlers in which field <<.place f>> does <<.em not>> exist or has an empty value"
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2015-01-18 18:39:00 +00:00
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/>
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2014-04-10 18:56:51 +00:00
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2015-01-18 18:39:00 +00:00
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<<.operator-examples "has">>
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