Type Alias inquire::formatter::MultiOptionFormatter

pub type MultiOptionFormatter<'a, T> = &'a dyn Fn(&[ListOption<&T>]) -> String;

Type alias for formatters used in MultiSelect prompts.

Formatters receive the user input and return a String to be displayed to the user as the final answer.

Examples

use inquire::list_option::ListOption;
use inquire::formatter::MultiOptionFormatter;

let formatter: MultiOptionFormatter<str> = &|opts| {
    let len = opts.len();
    let options = match len {
        1 => "option",
        _ => "options",
    };
    format!("You selected {} {}", len, options)
};

let mut ans = vec![ListOption::new(0, "a")];
assert_eq!(String::from("You selected 1 option"), formatter(&ans));

ans.push(ListOption::new(3, "d"));
assert_eq!(String::from("You selected 2 options"), formatter(&ans));