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15 lines
600 B
Plaintext
15 lines
600 B
Plaintext
created: 20140410103123179
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modified: 20150203191843000
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tags: [[Filter Operators]] [[Common Operators]] [[Field Operators]] [[Negatable Operators]]
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title: has Operator
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type: text/vnd.tiddlywiki
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caption: has
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op-purpose: filter the input by field existence
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op-input: a [[selection of titles|Title Selection]]
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op-parameter: the name of a [[field|TiddlerFields]]
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op-parameter-name: F
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op-output: those input tiddlers in which field <<.place F>> has a non-empty value
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op-neg-output: those input tiddlers in which field <<.place F>> does <<.em not>> exist or has an empty value
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<<.operator-examples "has">>
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