pub trait ListsToString {
// Required method
fn lists_to_string(
&self,
intra_separator: &str,
inter_separator: &str,
) -> String;
}Expand description
Extension trait to convert a list of lists of displayable items into a single string.
For example, vec![vec![1, 2], vec![3]].lists_to_string(", ", " | ") will produce
the string "[1, 2] | [3]".