Innmind / Immutable

    /**

     * {@inheritdoc}

     */

    public function drop(int $size): MapInterface

    {

        $map = clone $this;

        $map->keys = $this->keys->drop($size);

        $map->values = $this->values->drop($size);

        $map->pairs = $this->pairs->drop($size);

        return $map;

    }

    /**

     * {@inheritdoc}

    /**

     * {@inheritdoc}

     */

    public function dropEnd(int $size): MapInterface

    {

        $map = clone $this;

        $map->keys = $this->keys->dropEnd($size);

        $map->values = $this->values->dropEnd($size);

        $map->pairs = $this->pairs->dropEnd($size);

        return $map;

    }

    /**

     * {@inheritdoc}

    /**

     * {@inheritdoc}

     */

    public function take(int $size): MapInterface

    {

        $map = clone $this;

        $map->keys = $this->keys->take($size);

        $map->values = $this->values->take($size);

        $map->pairs = $this->pairs->take($size);

        return $map;

    }

    /**

     * {@inheritdoc}

    /**

     * {@inheritdoc}

     */

    public function takeEnd(int $size): MapInterface

    {

        $map = clone $this;

        $map->keys = $this->keys->takeEnd($size);

        $map->values = $this->values->takeEnd($size);

        $map->pairs = $this->pairs->takeEnd($size);

        return $map;

    }

    /**

     * {@inheritdoc}