Description Usage Arguments Details Value
This is the main callback. It can get called on any expression. If you call it, it will modify the your state.
1 | addCallCountsCallback(expr, value, status, visible, data)
|
expr |
an expression |
value |
result of the expression evaluation |
status |
logical indicating success or not |
visible |
was the output printed |
data |
data object that is accessible to the callback ( passed in from addTaskCallback) |
This follows the standard API of any R callback ( @see addTaskHandlers)
I guess this indicates if the callback succeeded?
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