HTML Events Mockest | JavaScript

1.

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)

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2.

Which event is fired when the page has finished loading?

A). unload B). load C). ready D). DOMContentLoaded

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3.

What is the correct syntax to prevent the default event action?

A). event.preventDefault() B). event.stopPropagation() C). event.prevent() D). event.stopDefault()

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4.

How do you stop event propagation?

A). event.preventDefault() B). event.stopPropagation() C). event.cancelBubble() D). event.stop()

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5.

Which event is triggered when a user presses a key?

A). keypress B). keyup C). keydown D). keyhit

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6.

What event occurs when an element loses focus?

A). blur B). focus C). focusout D). unfocus

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7.

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

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8.

Which event is fired when the mouse pointer is moved onto an element?

A). mouseenter B). mouseleave C). mouseover D). mousemove

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9.

How can you attach an event handler for a specific element when it is clicked?

A). element.onclick = function() {} B). element.addEventListener('click', function() {}) C). element.attachEvent('onclick', function() {}) D). element.listen('click', function() {})

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10.

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)

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