Q
Which method is used to attach an event listener to an HTML element in JavaScript?

Answer & Solution

Answer: Option B
Solution:
The addEventListener() method is used to attach an event listener to an HTML element in JavaScript. It takes the event type (e.g., 'click', 'mouseover') and a callback function as parameters, allowing developers to define actions that occur when the specified event is triggered.
Related Questions on Average

Which event occurs when a user submits an HTML form?

A). A. onsubmit

B). B. onmouseover

C). C. onkeydown

D). D. onclick

Which of the following correctly defines a JavaScript function?

A). A. function addNumbers(num1, num2) { return num1 + num2; }

B). B. function = addNumbers(num1, num2) { return num1 + num2; }

C). C. function addNumbers(num1 + num2) { return num1 + num2; }

D). D. function addNumbers(num1, num2) => { return num1 + num2; }

What is the purpose of the removeEventListener() method in JavaScript?

A). A. To add event listeners to HTML elements

B). B. To detach event listeners from HTML elements

C). C. To prevent event propagation in event handling

D). D. To modify HTML content dynamically

What is the purpose of the onclick attribute in HTML elements?

A). A. To define styles for HTML elements

B). B. To attach event listeners for mouse clicks

C). C. To insert JavaScript code directly into HTML

D). D. To create animations for HTML elements

What is the primary purpose of JavaScript functions?

A). A. To style web pages

B). B. To provide structure to HTML elements

C). C. To create reusable code blocks

D). D. To define CSS styles for HTML

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

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

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()

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

Which event is triggered when a web page finishes loading?

A). A. onload

B). B. onsubmit

C). C. onmouseover

D). D. onclick