Function jay_lib::fns::fn_io::v_f

pub fn v_f(v: Vec<String>) -> Result<()>

writen Vec<String> to a temporary file. It to check temporary data.

 use jay_lib::fns::fn_io::v_f;
    let v=["1".to_string(),"2".to_string(),"3".to_string()];
   if let Err(_) = v_f(v.to_vec()) {
         eprintln!("Save v to file has some err");
   }