Takes a UI element value and an older value and determines if
it has been modified
Usage
has_updated(ui_val = NULL, old_val = NULL)
Arguments
- ui_val
Current value from the UI.
- old_val
Last value of of the element.
defined.
Value
Boolean result of the comparison
Examples
changed_true = has_updated(ui_val = "a", old_val = "")
changed_true
#> [1] TRUE
changed_false = has_updated(ui_val = "a", old_val = "a")
changed_false
#> [1] FALSE
