Question

How can you dispatch a synthetic event object?

(a) dispatchEvent()

(b) dispatch()

(c) dispatch(Event)

(d) eventdispatch()

I have been asked this question in class test.

My enquiry is from JavaScript Benchmarking and Logging with perfLogger topic in division Parsing, Benchmarking and Logging of JavaScript

Answer 1

Correct choice is (a) dispatchEvent()

Easy explanation: When you have created and initialized a synthetic event object, you can dispatch it using the dispatchEvent() method of EventTarget. The dispatchEvent method throws UNSPECIFIED_EVENT_TYPE_ERR if the event’s type was not specified by initializing the event before the method was called, or if the event’s type is null or an empty string.