Function numberkit::is_number

pub fn is_number<S>(text: S) -> bool where
    S: AsRef<OsStr>, 

Check string is a number

Example

assert_eq!(true, numberkit::is_number("0"));
assert_eq!(false, numberkit::is_number("-1u32"));
assert_eq!(true, numberkit::is_number("2usize"));
assert_eq!(true, numberkit::is_number("3.5f32"));
assert_eq!(false, numberkit::is_number("0.2.1f32"));