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TiddlyWiki5/editions/tw5.com/tiddlers/filters/eachday.tid

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created: 20140410103123179
modified: 20150124214554000
tags: [[Filter Operators]] [[Group Operators]] [[Date Operators]]
title: eachday Operator
type: text/vnd.tiddlywiki
caption: eachday
purpose: select one of each group of input titles by date
<$macrocall $name=".operator-def"
input="a [[selection of titles|Title Selection]]"
parameter="the name of a [[date field|Date Fields]]"
paramName="f"
output="a selection containing the first input title encountered for each distinct value (ignoring times of day) of field <<.place f>>"
/>
Each input title is processed in turn. The value of field <<.place f>> in the corresponding tiddler is examined, and as long as this indicates a date that has not been encountered before, the title is appended to the output set.
If a tiddler doesn't contain field <<.place f>>, it contributes nothing to the output.
<<.operator-examples "eachday">>