What is the purpose of the event handlers in the JavaScript?

A Adds innerHTML page to the code
B Allows JavaScript code to alter the behaviour of windows
C Performs handling of exceptions and occurrences
D Change the server location

Correct Answer: Allows JavaScript code to alter the behaviour of windows

Event handlers allow JavaScript code to alter the behavior of windows, of documents, and of the elements that make up those documents.
Bissoy MCQ
#Web Technology

Related Questions

(i) Why do we remember May Day? (ii) What significant changes happened due to that event? (iii) How did the event happen? (iv) What can be done in present day as a result of that event ? (v) Mention the moral of that event.
A (i) We remember May day as it reminds us about the historic struggle of working people throughout the world
B (II) All the fortunate workers enjoy today-a minimum wage, safety laws and 8 hour workday due to that event.
C (iii) Police fired into a crowd of strikers at the McCormick arvest Machine Company, Chicago, killing at least one striker, seriously wounding five or six others and injuring an undetermined number.
D (iv) The events of May day 1886 is a remind that workers will continue to be subjugated until they stand up and speak out to gain better working conditions, better pay and better lives.
E (V) Workers will not be ever down in term of their right. (All)
Why does the Node rely on event handlers?
A APIs are synchronous
B APIs are asynchronous
C APIs are reusable
D APIs are modular
When a program contains extensive use of event handlers, which of the following is necessary?
A Modular functions
B Nested functions
C Split up programs
D Global variables
Which are the events that have default actions that can be canceled by event handlers?
A Submit and form-related events
B Reset and form-related events
C Submit and reset events
D form-related events
Which property is used to manage multiple event handlers?
A onmessage
B onerror
C both onmessage and onerror
D postmessage
The process by which the browser decides which objects to trigger event handlers on is
A Event Triggering
B Event Listening
C Event Handling
D Event propogation
Which is the function in JavaScript that will print the current page in JavaScript?
A print()
B printcurrent()
C print(now)
D print(this)
In which format does JavaScript support external JavaScript?
A .js
B .php
C .js/php
D .jss
Which class provides an interface for invoking JavaScript methods and examining JavaScript properties?
A ScriptObject
B JSObject
C JavaObject
D Jobject
What is the function used to remove all handlers for name events?
A deleteAllListeners(name)
B deleteListener(name,f)
C removeListener(name,f)
D removeAllListeners(name)

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