Function appendToHead

appendToHead<T>(value: T): (list: List.List<T>) => List.List<T>

Appends the element to head of the list.

Type Parameters

T

Parameters

value: T
The value to be appended.

Returns (list: List.List<T>) => List.List<T>

The appended list.

Examples

Example

const iter = toIterator(appendToHead(1)(singleton(4)));
expect(iter.next()).toStrictEqual({ value: 1, done: false });
expect(iter.next()).toStrictEqual({ value: 4, done: false });
expect(iter.next()).toStrictEqual({ value: undefined, done: true });