Q
Which statement accurately describes JavaScript event bubbling?

Answer & Solution

Answer: Option A
Solution:
JavaScript event bubbling refers to the upward propagation of events from child elements to parent elements in the document tree. When an event occurs on a nested (child) element, it also triggers the same event on its parent elements, propagating upwards until reaching the root (document).
Related Questions on Average

Consider the following HTML code: Which JavaScript code adds a click event listener to the button?

A). A. document.getElementById('myButton').onclick = function() { alert('Button clicked'); };

B). B. document.getElementById('myButton').addEventListener('click', function() { alert('Button clicked'); });

C). C. document.getElementById('myButton').click(function() { alert('Button clicked'); });

D). D. document.getElementById('myButton').on('click', function() { alert('Button clicked'); });

Which method is used to remove an event listener from an HTML element in JavaScript?

A). A. removeEventListener()

B). B. detachEvent()

C). C. removeEvent()

D). D. clearEventListener()

What is the purpose of an event in JavaScript?

A). A. To add styles to HTML elements

B). B. To handle user interactions and browser actions

C). C. To define function names

D). D. To create animations on web pages

Which event occurs when a user submits an HTML form?

A). A. onsubmit

B). B. onmouseover

C). C. onkeydown

D). D. onclick

What does the preventDefault() method do in JavaScript event handling?

A). A. Stops event propagation to parent elements

B). B. Prevents the default behavior associated with an event

C). C. Detaches event listeners from elements

D). D. Clears the event queue

Consider the following JavaScript code: document.addEventListener('keypress', function(event) { console.log('Key pressed:', event.key); }); What does this code do?

A). A. Adds a click event listener to the document

B). B. Adds a keypress event listener to the document

C). C. Removes a keypress event listener from the document

D). D. Checks if a key is pressed while hovering over an element

In JavaScript, what is the purpose of the addEventListener() method?

A). A. To create inline event handlers

B). B. To attach event listeners to HTML elements

C). C. To remove event listeners from HTML elements

D). D. To bind event handlers to parent elements

What is the purpose of the oninput event in HTML?

A). A. To track changes in form inputs

B). B. To detect mouse movements

C). C. To determine when an element is loaded

D). D. To handle form submissions

Consider the following JavaScript code: let greet = function(name) { return 'Hello, ' + name + '!'; }; What type of function is greet in this code?

A). A. Named function

B). B. Anonymous function

C). C. Arrow function

D). D. Generator function

What is the purpose of the onmouseover event in HTML?

A). A. To detect when an element is hovered over

B). B. To track changes in form inputs

C). C. To determine when an element is loaded

D). D. To handle form submissions