21 lines
966 B
Plaintext
21 lines
966 B
Plaintext
caption: getindex
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created: 20150203140000000
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modified: 20230306131335009
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op-purpose: select all values of a data property in the input titles
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op-input: a [[selection of titles|Title Selection]]
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op-parameter: the name of a [[property|DataTiddlers]]
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op-parameter-name: P
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op-output: the values of property <<.place P>> in each of the input titles
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tags: [[Filter Operators]] [[Field Operators]]
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title: getindex Operator
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caption: getindex
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Each input title is processed in turn, and is ignored if it does not denote a [[data tiddler|DataTiddlers]]. If the tiddler contains property <<.place P>>, the value of that property is [[dominantly appended|Dominant Append]] to the output.
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<<.tip """If a data tiddler contains index <<.place P>> with an empty value, the empty string is not appended. The following [[Filter Expression]] can be used to also return an empty string
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<pre>:filter[has:index[P]] :and[getindex[P]else[]]</pre>""">>
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<<.operator-examples "getindex">>
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