Q
How do you add an event listener to an element in JavaScript?

Answer & Solution

Answer: Option A
Solution:
The standard way to add an event listener is using addEventListener method.
Related Questions on Average

What does the event.preventDefault() method do?

A). Stops the event from propagating

B). Stops the default action of the event

C). Stops the event handler

D). Stops the event

Which event is triggered when the user resizes the browser window?

A). resize

B). resizestart

C). resizeend

D). resizewindow

What is the use of the event.stopPropagation() method?

A). Stops the default action of the event

B). Stops the event from propagating

C). Prevents the event from being fired

D). Prevents the event from bubbling

How do you bind an event handler to an element so it is called once and then removed?

A). element.addEventListenerOnce('click', handler)

B). element.once('click', handler)

C). element.addEventListener('click', handler, { once: true })

D). element.on('clickOnce', handler)

What is the purpose of the 'change' event?

A). It is triggered when an element's value changes

B). It is triggered when an element is clicked

C). It is triggered when the mouse moves over an element

D). It is triggered when the DOM is changed

What is the correct way to attach a load event to the window object?

A). window.onload = function() {}

B). window.addEventListener('load', function() {})

C). window.attachEvent('onload', function() {})

D). window.listen('load', function() {})

What event is fired when an element's value is changed and then loses focus?

A). blur

B). change

C). focusout

D). input

Which event is fired when the page has finished loading?

A). unload

B). load

C). ready

D). DOMContentLoaded

Which event is fired when the form is submitted?

A). submit

B). send

C). post

D). formsubmit

How can you remove an event listener from an element?

A). element.removeEventListener('click', handler)

B). element.detachEvent('click', handler)

C). element.off('click', handler)

D). element.remove('click', handler)