Exceptions

Question 1

exceptions are state-reverting

Answer 1

an exception undoes all changes made to the state in the current call and flag an error to the caller

Question 2

assert

Answer 2

test for internal errors. Shouldn’t be triggered for a properly. functioning code

Question 3

require

Answer 3

check conditions

Question 4

revert

Answer 4

flag an error and revert the current call

Question 5

assert-style exceptions consumes all gas available and

Answer 5

require-style exceptions does not