thi-ng/umbrella

/**
 * Iterator yielding an infinite (by default) repetition of given value
 * `x`. If `n` is given, only produces that many values.
 *
 * See also: {@link repeatedly}
 *
 * @example
 * ```ts
 * import { repeat } from "@thi.ng/transducers";
 *
 * [...repeat(42, 5)]
 * // [42, 42, 42, 42, 42]
 * ```
 *
 * @param x - value to repeat
 * @param n - num values (default: ∞)
 */
export function* repeat<T>(x: T, n = Infinity) {
    while (n-- > 0) {
        yield x;
    }
}