What was the purpose of the British Declaratory Act of 1766?

The Declaratory Act of 1766 was mainly passed by the British parliament so that the British Empire could keep and reaffirm its political power, authority and influence over the Thirteen Colonies. The declaration was basically a continuation of the Stamp Act of 1765, which guaranteed that the British Empire will have the power to demand taxes from the Colonies, as it demanded taxes from Great Britain. When the Sugar Act of 1744 and the Stamp Act of 1765 were passed, the American people felt that it was unjust and unfair to be taxed by the British Empire if they didn’t have good representation in the British government.
Thus, the British parliament repealed the Stamp Act and passed the Declaratory Act so that they could ensure that their legislative authority was the same in the Colonies as it was in their own country and that they would be able to pass any law that they wanted.