rvest how to select a specific css node by id

Question

I\'m trying to use the rvest package to scrape data from a web page. In a simple format, the html code looks like this:

Answer 1

Adding an answer bc I don't see the easy css selector shorthand for selecting by id: using #your_id_name:

h %>% 
  html_node('#a') %>%
  html_attr('value')

which outputs "123" as desired.

Same setup as the others:

require(rvest)
text <- '

   
   
'

h <- read_html(text)