... in an unpredictable order, we say that the handling of the events, and therefore the invocation of their handling functions, is asynchronous. The types of events that can occur include: Browser ... that describes the purpose of the assertion. If the value evaluates to true, in other words is “truth-y”, then the assertion passes, otherwise it is considered a failure. The associated message ... But by looking at the work of some of the best JavaScript coders we can see that, when used appropriately, these useful features allow for the creation of some fantastic pieces of code that wouldn't...