Change the text or HTML inside an element. The given HTML can be any R expression, and it can either be appended to the currentcontents of the element or overwrite it (default).
html(id = NULL, html = NULL, add = FALSE, selector = NULL, asis = FALSE)The id of the element/Shiny tag
The HTML/text to place inside the element. Can be either simple plain text or valid HTML code.
If TRUE, then append html to the contents of the element;
otherwise overwrite it.
JQuery selector of the elements to target. Ignored if the id
argument is given.
If TRUE, use the ID as-is even when inside a module
(instead of adding the namespace prefix to the ID).
shinyjs must be initialized with a call to useShinyjs()
in the app's ui.
if (interactive()) {
library(shiny)
shinyApp(
ui = fluidPage(
useShinyjs(), # Set up shinyjs
actionButton("btn", "Click me"),
p(id = "element", "Watch what happens to me")
),
server = function(input, output) {
observeEvent(input$btn, {
# Change the following line for more examples
html("element", paste0("The date is ", date()))
})
}
)
}
if (FALSE) {
# The shinyjs function call in the above app can be replaced by
# any of the following examples to produce similar Shiny apps
html("element", "Hello!")
html("element", " Hello!", TRUE)
html("element", "<strong>bold</strong> that was achieved with HTML")
local({val <- "some text"; html("element", val)})
html(id = "element", add = TRUE, html = input$btn)
}