html_attr: Get element attributes
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html_attr

R Documentation

Get element attributes

Description

html_attr() gets a single attribute; html_attrs() gets all attributes.

Usage

html_attr(x, name, default = NA_character_)

html_attrs(x)

Arguments

`x`	A document (from `read_html()`), node set (from `html_elements()`), node (from `html_element()`), or session (from `session()`).
`name`	Name of attribute to retrieve.
`default`	A string used as a default value when the attribute does not exist in every element.

Value

A character vector (for html_attr()) or list (html_attrs()) the same length as x.

Examples

html <- minimal_html('<ul>
  <li><a href="https://a.com" class="important">a</a></li>
  <li class="active"><a href="https://c.com">b</a></li>
  <li><a href="https://c.com">b</a></li>
  </ul>')

html %>% html_elements("a") %>% html_attrs()

html %>% html_elements("a") %>% html_attr("href")
html %>% html_elements("li") %>% html_attr("class")
html %>% html_elements("li") %>% html_attr("class", default = "inactive")

rvest documentation built on Aug. 20, 2022, 1:08 a.m.