Q
Which JavaScript method is commonly used to show an HTML element by adding a CSS class with visible properties?

Answer & Solution

Answer: Option B
Solution:
The classList.add('visible') method is commonly used in JavaScript to show an HTML element by adding a CSS class with visible properties. This class typically sets the display or visibility property to make the element visible.
Related Questions on Average

What is the advantage of using the classList property to show HTML elements compared to directly modifying CSS properties?

A). It allows for more granular control and better readability.

B). It provides better performance and faster execution.

C). It simplifies code structure and improves cross-browser compatibility.

D). It increases code complexity and maintenance.

How can you show an HTML element using JavaScript without directly modifying its CSS properties?

A). Use the setAttribute() method to set display: block;.

B). Use the setStyle() method to set visibility: visible;.

C). Use the removeAttribute() method to remove the element from the DOM.

D). Use the toggle() method to toggle between visible and hidden states.

How can you show multiple HTML elements using JavaScript by adding a CSS class with visible properties?

A). element.style.visibility = 'visible';

B). element.classList.add('visible');

C). element.style.display = 'block';

D). element.classList.toggle('visible');

What is a common approach to showing a hidden HTML element by adding or removing CSS classes in JavaScript?

A). element.style.visibility = 'visible';

B). element.classList.toggle('hidden');

C). element.style.display = 'block';

D). element.classList.remove('hidden');

How can you show an HTML element using JavaScript without directly modifying its style properties?

A). Use the setAttribute() method to set display: block;.

B). Use the setStyle() method to set visibility: visible;.

C). Use the removeAttribute() method to remove the element from the DOM.

D). Use the toggle() method to toggle between visible and hidden states.

What happens to an HTML element when its visibility property is set to 'visible' using JavaScript?

A). It becomes invisible but still occupies space in the layout.

B). It becomes visible without affecting its layout position.

C). It is removed from the DOM.

D). It becomes hidden but still interacts with the layout.

What is the advantage of using CSS classes to show HTML elements compared to inline styles in JavaScript?

A). Inline styles provide better performance.

B). CSS classes allow for better separation of concerns and reusability.

C). Inline styles offer more flexibility in showing elements.

D). CSS classes increase code complexity and maintenance.

How can you show an HTML element using JavaScript by toggling its visibility state?

A). element.style.display = 'visible';

B). element.style.visibility = 'visible';

C). element.style.visibility = 'toggle';

D). element.toggle('visible');

How can you show an HTML element using JavaScript by modifying its visibility property?

A). element.style.visibility = 'visible';

B). element.visibility = 'visible';

C). element.style.display = 'visible';

D). element.style.display = 'block';

How can you show an HTML element using JavaScript without affecting its layout position?

A). element.style.display = 'visible';

B). element.style.visibility = 'visible';

C). element.style.position = 'absolute';

D). element.style.opacity = '1';