Does a divorce oath take effect if the one who utters it is agitated and angry?

The ruling on swearing an oath by divorce here is that it constitutes a conditional divorce. If you do not carry out your threat to file a complaint, divorce occurs. If you do carry it out, then divorce does not occur. If you had an intention to specify a time for filing the complaint, that intention is acted upon. Otherwise, the breach of the oath does not occur until the last possible moment. It is advised to avoid anger and not to make divorce a means of solving problems.