tagAppendAttributes: Append tag attributes

In htmltools: Tools for HTML

Append tag attributes

Description

Append (tagAppendAttributes()), check existence (tagHasAttribute()), and obtain the value (tagGetAttribute()) of HTML attribute(s).

Usage

tagAppendAttributes(tag, ..., .cssSelector = NULL)

tagHasAttribute(tag, attr)

tagGetAttribute(tag, attr)

Arguments

tag	a tag object.
...	Attributes to append as named argument-value pairs. A named argument with an NA value is rendered as a boolean attribute (see example).
.cssSelector	A character string containing a CSS selector for targeting particular (inner) tags of interest. At the moment, only a combination of type (e.g, div), class (e.g., .my-class), id (e.g., ⁠#myID⁠), and universal (*) selectors within a given simple selector is supported. Note, if .cssSelector is used, the returned tags will have their ⁠$children⁠ fields flattened to a single list() via tagQuery().
attr	The name of an attribute.

See Also

tagAppendChildren(), tagQuery()

Examples

html <- div(a())
tagAppendAttributes(html, class = "foo")
tagAppendAttributes(html, .cssSelector = "a", class = "bar")
tagAppendAttributes(html, contenteditable = NA)

tagHasAttribute(div(foo = "bar"), "foo")
tagGetAttribute(div(foo = "bar"), "foo")

htmltools documentation built on May 29, 2024, 5:19 a.m.