voku / Arrayy

     * @phpstan-return static<TKey,T>

     * @psalm-mutation-free

     */

    public function each(\Closure $closure): self

    {

        // init

        $array = [];

        foreach ($this->getGenerator() as $key => $value) {

            $array[$key] = $closure($value, $key);

        }

        return static::create(

            $array,

            $this->iteratorClass,

            false

        );

    }

    /**

     * Sets the internal iterator to the last element in the array and returns this element.

     * @phpstan-return static<TKey,T2>

     * @psalm-mutation-free

     */

    public function reduce($callable, $initial = []): self

    {

        foreach ($this->getGenerator() as $key => $value) {

            $initial = $callable($initial, $value, $key);

        }

        /** @var static<TKey,T2> $return  - help for phpstan */

        $return = static::create(

            $initial,

            $this->iteratorClass,

            false

        );

        return $return;

    }

    /**

     * @param bool $unique

     * @phpstan-return static<TKey,T>

     * @psalm-mutation-free

     */

    public function reject(\Closure $closure): self

    {

        // init

        $filtered = [];

        foreach ($this->getGenerator() as $key => $value) {

            if (!$closure($value, $key)) {

                $filtered[$key] = $value;

            }

        }

        return static::create(

            $filtered,

            $this->iteratorClass,

            false

        );

    }

    /**

     * Remove a value from the current array (optional using dot-notation).