Like the famous comma splice, a dash splice uses a punctuation mark to fuse together independent clauses that should probably stand alone as separate sentences. But it uses an em dash instead of a comma. ... Dashes can set off parenthetical information.

How do you spell comma splice?

A comma splice is when two independent clauses are incorrectly joined by a comma to make one sentence.

Can a dash correct a comma splice?

You can fix a comma splice in a number of ways: a new sentence can be formed; a different mark of punctuation, like a semicolon or a dash, can be substituted for the comma; or a conjunction can be used between the clauses: Canceling your vacation is a horrible idea.