In this case, em dashes are doing something similar to a pair of commas, which can also denote side info but they do it more casually, and parentheses.
"and parentheses" what? And they are also like em dashes?
Edit: Thank you for the explanation folks. For whatever reason I found the use of commas to denote the aside very difficult to parse. I think maybe it's because of the first comma after "In this case."
"and parentheses" what? And they are also like em dashes?
Edit: Thank you for the explanation folks. For whatever reason I found the use of commas to denote the aside very difficult to parse. I think maybe it's because of the first comma after "In this case."