Convert all columns of the provided object to character.
Value
A similar object as df, but all columns are of class character().
Examples
df <- data.frame(a = c(1, 2, 3), b = c("a", "b", "c"))
all_to_character(df)
#> a b
#> 1 1 a
#> 2 2 b
#> 3 3 c