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

created: 20140410103123179
modified: 20150127202806000
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.

If a tiddler doesn't contain field <<.place f>>, it contributes nothing to the output.

<<.operator-examples "eachday">>
Update tiddler filter docs 2014-04-10 18:56:51 +00:00			`created: 20140410103123179`
Adjust documentation following pull #1422 2015-01-27 20:38:30 +00:00			`modified: 20150127202806000`
Overhaul the filter operator documentation: part 2 2015-01-24 21:18:44 +00:00			`tags: [[Filter Operators]] [[Group Operators]] [[Date Operators]]`
Overhaul the filter operator documentation: part 1 2015-01-18 18:39:00 +00:00			`title: eachday Operator`
Update tiddler filter docs 2014-04-10 18:56:51 +00:00			`type: text/vnd.tiddlywiki`
Overhaul the filter operator documentation: part 1 2015-01-18 18:39:00 +00:00			`caption: eachday`
Overhaul the filter operator documentation: part 2 2015-01-24 21:18:44 +00:00			`purpose: select one of each group of input titles by date`
Update tiddler filter docs 2014-04-10 18:56:51 +00:00
Overhaul the filter operator documentation: part 1 2015-01-18 18:39:00 +00:00			`<$macrocall $name=".operator-def"`
Overhaul the filter operator documentation: part 2 2015-01-24 21:18:44 +00:00			`input="a [[selection of titles\|Title Selection]]"`
Retarget a couple of links and add trailing linefeeds 2015-01-24 21:53:28 +00:00			`parameter="the name of a [[date field\|Date Fields]]"`
Overhaul the filter operator documentation: part 1 2015-01-18 18:39:00 +00:00			`paramName="f"`
Overhaul the filter operator documentation: part 2 2015-01-24 21:18:44 +00:00			`output="a selection containing the first input title encountered for each distinct value (ignoring times of day) of field <<.place f>>"`
Overhaul the filter operator documentation: part 1 2015-01-18 18:39:00 +00:00			`/>`
Update tiddler filter docs 2014-04-10 18:56:51 +00:00
Adjust documentation following pull #1422 2015-01-27 20:38:30 +00:00			`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.`
Overhaul the filter operator documentation: part 2 2015-01-24 21:18:44 +00:00
			`If a tiddler doesn't contain field <<.place f>>, it contributes nothing to the output.`
Update tiddler filter docs 2014-04-10 18:56:51 +00:00
Overhaul the filter operator documentation: part 1 2015-01-18 18:39:00 +00:00			`<<.operator-examples "eachday">>`