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* has:field — tested & documented allows to test whether a field exists * fixed inverted condition * added from version to docs
16 lines
1013 B
Plaintext
16 lines
1013 B
Plaintext
caption: has
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created: 20140410103123179
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modified: 20151111150117431
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op-input: a [[selection of titles|Title Selection]]
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op-neg-output: ''without suffix'' or with ''suffix `value`''<br>» those input tiddlers in which field <<.place F>> does <<.em not>> exist or has an empty value<br>''suffix `field`''<br>» those input tiddlers in which field <<.place F>> exists
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op-output: ''without suffix'' or with ''suffix `value`''<br>» those input tiddlers in which field <<.place F>> has a non-empty value<br>''suffix `field`''<br>» those input tiddlers in which field <<.place F>> does <<.em not>> exist
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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-purpose: filter the input by field existence
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op-suffix: <<.from-version "5.1.14">> optionally, the name of a [[field|TiddlerFields]]
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op-suffix-name: F
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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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<<.operator-examples "has">> |