Function first_or_empty 

pub fn first_or_empty<T>(collection: &[T]) -> T
where
    T: Clone + Default,

Returns the first item from the collection. If the collection is empty, returns the default value of T.

Arguments

• collection - A slice of items.

Returns

• T - The first item in the collection. If the collection is empty, returns T::default().

Examples

use lowdash::first_or_empty;

let numbers = vec![1, 2, 3];
let first_num = first_or_empty(&numbers);
assert_eq!(first_num, 1);

let empty: Vec<i32> = vec![];
let first_num = first_or_empty(&empty);
assert_eq!(first_num, 0); // i32::default() is 0

use lowdash::first_or_empty;

#[derive(Debug, PartialEq, Clone, Default)]
struct Person {
    name: String,
    age: u32,
}

let people = vec![
    Person { name: "Alice".to_string(), age: 25 },
    Person { name: "Bob".to_string(), age: 30 },
];

let first_person = first_or_empty(&people);
assert_eq!(first_person, Person { name: "Alice".to_string(), age: 25 });

let empty_people: Vec<Person> = vec![];
let first_person = first_or_empty(&empty_people);
assert_eq!(first_person, Person::default());