\text{\textemdash}
The em dash is a versatile punctuation mark used to create a strong break in the structure of a sentence. It can replace commas, parentheses, or colons for added emphasis or an abrupt change in thought.
Using em dashes to add emphasis to a parenthetical statement.
The results\text{\textemdash}as expected\text{\textemdash}were conclusive.
Using em dashes to emphasize a strong, abrupt interruption.
She gave him her answer\text{\textemdash}No!\text{\textemdash}and left the room.
Using em dashes to insert additional information into a sentence.
The conference\text{\textemdash}originally scheduled for March\text{\textemdash}was postponed.