JavaScript DOM Manipulation Quiz

What method adds specified class(es) to the classList of an element?

• remove(classname)

• add(classname)

• toggle(classname)

• contains(classname)

Which method removes a specified class from an element's classList?

• add(classname)

• remove(classname)

• toggle(classname)

• replace(oldclass, newclass)

What does the toggle(classname) method do?

• Both adds and removes a class

• Removes a class from the list

• Replaces a class in the list

• Adds a class to the list

What does the contains(classname) method return?

• True if the class is present

• False if the class is present

• The class name

• An error if the class is not found

Which method is used to create a new DOM element?

• document.removeChild()

• document.insertBefore()

• document.appendChild()

• document.createElement()

What does parent.appendChild(node) do?

• Removes a child node

• Adds a node at the end of the child list

• Inserts a node before another

• Replaces a child node

Which method removes a node from the DOM?

• parent.replaceChild(new, old)

• parent.insertBefore(new, old)

• parent.removeChild(node)

• node.remove()

What is the purpose of innerHTML=""?

• To add event listeners

• To set or get HTML content of an element

• To remove all child nodes

• To create new elements

What is an anonymous function?

• A function that returns another function

• A function with a name

• A function that cannot be called

• A function without a name

What does setTimeout(responseFn, delayMS) do?

• Sets an interval for a function

• Cancels a function call

• Calls a function after a delay

• Calls a function repeatedly