In client-side script I need to get the selected text. Here is what I have tried.

1. var selectionType = editor.GetSelectionType()

2. if (selectionType == 'Range') {

3.     var selectedRangeText = editor.SelectContent(editor.GetPointNode());

Line 3 fails with selectedRangeText is 'undefined';

What do I need to get the text, and only the text , that is selected?

Thanks.