Trouble with forward slash

Hi all,

I have what should be a simple question. The code below is part of a dynamic chart and data.addRows adds the labels for the chart. My issue is that the label ‘Group1/Group2’ does not appear because of the forward slash (/). Could anyone please tell me how to correctly escape this character? Thank you for your help.

````````` 

data.addRows([
            ['Other', 100 - local_result],
            ['Group1/Group2', local_result],
        ]);

```````