has_updated {formods} | R Documentation |
Detect if a UI element has updated
Description
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
changed_false = has_updated(ui_val = "a", old_val = "a")
changed_false
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