singleton

is.singleton

Use <code>singleton</code> to wrap contents (tag, text, HTML, or lists) that should
be included in the generated document only once, yet may appear in the
document-generating code more than once. Only the first appearance of the
content (in document order) will be used.

Carson Sievert

htmltools

Tools for HTML

Joe Cheng

Barret Schloerke

Winston Chang

Yihui Xie

Jeff Allen

Posit Software, PBC 

singleton function

<dl><dt>x</dt>
<dd>A <code>tag()</code>, text, <code>HTML()</code>, or list.</dd>
<dt>value</dt>
<dd>Whether the object should be a singleton.</dd></dl>

Arguments

Include content only once — singleton

<dl>

<dt>x</dt>
<dd>A <code>tag()</code>, text, <code>HTML()</code>, or list.</dd>


<dt>value</dt>
<dd>Whether the object should be a singleton.</dd>

</dl>

Include content only once

singleton: Include content only once

Description

Usage

Arguments