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)
How can you get the element that triggered the event?
A). event.target
B). event.srcElement
C). event.element
D). event.currentElement
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)
Which event is triggered when a user presses a key?
A). keypress
B). keyup
C). keydown
D). keyhit
How do you add an event listener to an element in JavaScript?
A). element.addEventListener('click', handler)
B). element.attachEvent('click', handler)
C). element.on('click', handler)
D). element.listen('click', handler)
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
Which event is fired when the form is submitted?
A). submit
B). send
C). post
D). formsubmit
Which event is fired when the mouse pointer is moved onto an element?
A). mouseenter
B). mouseleave
C). mouseover
D). mousemove
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 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