Function first_string 

pub fn first_string(
    fields: &HashMap<String, Vec<String>>,
    key: &str,
) -> Option<String>

Get the first value of a field as an owned String.

Examples

use std::collections::HashMap;
use openstranded_common_helpers::first_string;

let mut fields = HashMap::new();
fields.insert("name".into(), vec!["Wood".into()]);
assert_eq!(first_string(&fields, "name"), Some("Wood".into()));