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

Answer & Solution

Answer: Option B
Solution:
A common approach to showing a hidden HTML element in JavaScript is by adding or removing CSS classes. For example, element.classList.toggle('hidden'); will toggle the 'hidden' class, which can control the visibility of the element through CSS rules that set display: none; or visibility: hidden;.
Related Questions on Average

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');

How can you show an HTML element using JavaScript by modifying its inline style directly?

A). element.setAttribute('style', 'display: block;');

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

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

D). element.display = 'block';

How can you show an HTML element using JavaScript by modifying its CSS class?

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

B). Add an external CSS file to the HTML document and link it.

C). Use the classList property to add a class with visible properties.

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

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.

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

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

B). element.visibility = 'visible';

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

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

How can you show an HTML element using JavaScript by setting its display property to 'block' in an external CSS file?

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

B). Link the HTML file to an external CSS file with a class that sets display: block;.

C). Import the external CSS file using JavaScript and apply it to the element.

D). element.display = 'block';

How can you show an HTML element using JavaScript by modifying its CSS properties?

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 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 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';

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.