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https://issues.apache.org/jira/browse/FREEMARKER-192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17422309#comment-17422309
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Dániel Dékány commented on FREEMARKER-192:
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Having "list beginning" parameter after "list ending" parameter is way too
counter intuitive. People would constantly use it incorrectly. So I rather go
for parameter 3 having the changing meaning, just noted that this will be the
rice of this.
> Add a "list beginning" parameter to "join" for sequences
> --------------------------------------------------------
>
> Key: FREEMARKER-192
> URL: https://issues.apache.org/jira/browse/FREEMARKER-192
> Project: Apache Freemarker
> Issue Type: Improvement
> Reporter: Sebastian Schuberth
> Priority: Minor
>
> The "join" built-in on sequences already has a "list ending" optional
> parameter. It should have a corresponding "list beginning" optional parameter
> to conveniently print headers only for non-empty sequences.
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