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18 lines
839 B
Plaintext
18 lines
839 B
Plaintext
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created: 20240708171243370
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modified: 20240708201827711
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tags:
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title: Operators without parameters
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Many [[Filter Operators]] have no [[parameter|Filter Parameter]] available. Still, each operator must be followed by a bracketed parameter expression — even if it is empty — as with the <<.olink backlinks>> operator below:
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`[<currentTiddler>backlinks[]]`
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(Even though an expression such as `[<currentTiddler>backlinks]` may at first <<.em seem>> well-formed — insofar as closing brackets seem to pair properly with opening brackets — each operator needs its own parameter brackets, even if empty. See [[Filter Syntax]].)
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The following [[Filter Operators]] accept no parameters:
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<div>
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<<list-links filter:"[op-parameter[none]] [tag[Filter Operators]!has[op-parameter]] -[search:op-purpose[same]]" class:"multi-columns">>
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</div>
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