src/Primitive/Container/Container.php
public function join($glue = '')
    {
        foreach ($copy = Arr::flatten($this->items) as $key => $object)
        {
            $copy[$key] = $this->getStringable($object);
        }

        return string(implode($this->getStringable($glue, ''), $copy));
    }
public function join($glue = '')
    {
        foreach ($copy = Arr::flatten($this->items) as $key => $object)
        {
            $copy[$key] = $this->getStringable($object);
        }

        return string(implode($this->getStringable($glue, ''), $copy));
    }
Return joined Container items.

@param string|StringContract $glue
@return \im\Primitive\String\String