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 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 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');
What does setting the CSS visibility property to 'visible' do to an HTML element?
A). It makes the element transparent but still visible.
B). It hides the element without affecting its layout position.
C). It completely removes the element from the layout.
D). It becomes visible without affecting its layout position.
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';
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.
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 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 toggling its visibility state?
A). element.style.display = 'visible';
B). element.style.visibility = 'visible';
C). element.style.visibility = 'toggle';
D). element.toggle('visible');
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.