Yajra\Datatables\Html\Builder::columns PHP Method

    public function columns(array $columns)
    {
        foreach ($columns as $key => $value) {
            if (!is_a($value, Column::class)) {
                if (is_array($value)) {
                    $attributes = array_merge(['name' => $key, 'data' => $key], $this->setTitle($key, $value));
                } else {
                    $attributes = ['name' => $value, 'data' => $value, 'title' => $this->getQualifiedTitle($value)];
                }
                $this->collection->push(new Column($attributes));
            } else {
                $this->collection->push($value);
            }
        }
        return $this;
    }