Encore\Admin\Grid\Column::map PHP Method

    public function map($data)
    {
        foreach ($data as &$item) {
            $this->original = $value = array_get($item, $this->name);
            if ($this->hasValueWrapper()) {
                $value = call_user_func($this->valueWrapper, $value);
                array_set($item, $this->name, $value);
            }
            if ($this->hasHtmlWrapper()) {
                $value = $this->htmlWrap($value);
                array_set($item, $this->name, $value);
            }
        }
        return $data;
    }