actionButton
actionButton(inputId, label, icon = NULL, width = NULL, ...)
actionLink(inputId, label, icon = NULL, ...)Arguments
| inputId | The inputslot that will be used to access the value. | 
|---|---|
| label | The contents of the button or link--usually a text label, but you could also use any other HTML, like an image. | 
| icon | An optional iconto appear on the button. | 
| width | The width of the input, e.g. '400px', or'100%';
seevalidateCssUnit. | 
| ... | Named attributes to be applied to the button or link. | 
Description
Creates an action button or link whose value is initially zero, and increments by one each time it is pressed.
Examples
## Not run: ------------------------------------
# # In server.R
# output$distPlot <- renderPlot({
#   # Take a dependency on input$goButton
#   input$goButton
# 
#   # Use isolate() to avoid dependency on input$obs
#   dist <- isolate(rnorm(input$obs))
#   hist(dist)
# })
# 
# # In ui.R
# actionButton("goButton", "Go!")
## ---------------------------------------------See also
observeEvent and eventReactive
Other input.elements: checkboxGroupInput,
  checkboxInput, dateInput,
  dateRangeInput, fileInput,
  numericInput, passwordInput,
  radioButtons, selectInput,
  sliderInput, submitButton,
  textInput