actionButton(inputId, label, icon = NULL)

Creates an action button whose value is initially zero. The value advances by one each time the button is pressed. This change can spur an action, even if your app does not directly use the value.

Arguments

inputId The name to use to look up the value of the widget (as a character string)

label The label to display in the button. This can also be an HTML element such as an image.

icon Optional icon to appear on the button

Make this widget by copying the code in ui.R.