defaultIfEmpty(...items)

Creates a new Enumerable with the given items if empty.

Arguments

• ...items (any): items used to create a new Enumerable if empty.

Returns

(Enumerable): new, not empty, Enumerable.

Example

Enumerable
        .from([1, 2, 3])
        .defaultIfEmpty(4, 5, 6)
        .toArray();
// [1, 2, 3]

Enumerable
        .from([])
        .defaultIfEmpty(4, 5, 6)
        .toArray();
// [4, 5, 6]