How do you use an em dash in dialogue?

Punctuation Questions Medium

How do you use an em dash in dialogue?

In dialogue, an em dash can be used to indicate an interruption or an abrupt break in speech. It is typically used when a character is being interrupted by another character or when they abruptly change their thought or direction in their speech. Here's an example:

Character A: "I was just about to tell you—"
Character B: "Wait, let me guess! You won the lottery, didn't you?"

In this example, the em dash is used to show that Character A's speech is abruptly interrupted by Character B. It helps to convey the suddenness and interruption in the dialogue.