# but not with anything else Code dt %>% rename_with(1) Error <rlang_error> `.fn` must be a function name or formula # rename_with generates minimal spec Code dt %>% rename_with(toupper) %>% show_query() Output setnames(copy(DT), toupper) Code dt %>% rename_with(toupper, 1:3) %>% show_query() Output setnames(copy(DT), c("a", "b", "c"), toupper) # errors are raised Code collect(drop_na(dt, "z")) Error <vctrs_error_subscript_oob> Can't subset columns that don't exist. x Column `z` doesn't exist.
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