Potential bug with if_any()- returns TRUE if no columns are selected

[ks8997]

The if_any() function returns TRUE if we pass an empty vector of columns. I think this behavior is unexpected and may introduce subtle bugs if your tidyselect function does not match any columns. I think it should possibly return an error.

iris %>%
    mutate(z = if_any(c(), ~ . > 4000)) # returns all TRUE

iris %>%
    mutate(z = if_any(starts_with("XYZ"), ~ . > 4000)) # returns all TRUE

[DavisVaughan]

This was actually just fixed by #7072

The correct behavior is actually to return all FALSE here, consistent with the base function any() when no inputs are provided. I don't think we want to error, we just want consistent and explainable behavior

[ks8997]

@DavisVaughan Thanks for explaining. But, I don't think this behavior is fixed. I updated to the latest version and using if_any in mutate with zero cols incorrectly returns all TRUE, although I think it works correctly inside filter. You can try the examples I posted above.