Question

Which function is a synonym for on()?

(a) addListener()

(b) listeners()

(c) once()

(d) add()

I got this question in class test.

I'm obligated to ask this question of Server-Side JavaScript topic in chapter Server-Side and Client-Side Scripting of JavaScript

Answer 1

The correct choice is (a) addListener()

To elaborate: The on() method is used for registering handlers. addListener() is a synonym for on().