How can you dynamically change the text content of an HTML element based on user input using JavaScript?
A). Use event listeners like addEventListener to detect input changes and update the element's text content
B). Use inline JavaScript in the HTML element's onclick attribute to update the text content
C). Use the onChange event directly in the HTML element's tag to update the text content
D). Use the inputValue property in JavaScript to directly modify the element's text content
What is the purpose of the innerText property in JavaScript?
A). To set or retrieve the text content of an element, including its descendants
B). To set or retrieve the HTML content of an element, including its descendants
C). To set or retrieve the value of an input element
D). To set or retrieve the URL of an anchor element
How can you hide an HTML element from the user interface using JavaScript?
A). element.style.display = 'none';
B). element.style.visibility = 'hidden';
C). element.visible = false;
D). element.style.opacity = 0;
How can you change the font size of an HTML element using JavaScript?
A). element.style.fontSize = '16px';
B). element.style.font = '16px';
C). element.fontSize = '16px';
D). element.font = '16px';
What does the appendChild() method do in JavaScript?
A). Appends a new child node to an existing element in the DOM
B). Removes a child node from an existing element in the DOM
C). Replaces an existing child node with a new node in the DOM
D). Creates a new parent node for an existing child node in the DOM
How can you dynamically change the background color of an HTML element based on user actions using JavaScript?
A). Use event listeners like addEventListener to detect user actions and update the element's background color
B). Use inline JavaScript in the HTML element's onclick attribute to change the background color
C). Use the onHover event directly in the HTML element's tag to change the background color
D). Use the element.background = 'color'; property in JavaScript to directly modify the element's background color
How can you dynamically add a new paragraph element to an HTML document using JavaScript?
A). document.createElement('p') followed by appendChild()
B). document.getElementById('newParagraph').textContent = 'New Paragraph';
C). document.querySelector('p').innerText = 'New Paragraph';
D). document.innerHTML = '<p>New Paragraph</p>';
How can you change the background color of an HTML element using JavaScript?
A). element.style.backgroundColor = 'red';
B). element.background = 'red';
C). element.bgColor = 'red';
D). element.color = 'red';
What is the purpose of the classList property in JavaScript?
A). To access and manipulate the CSS classes of an HTML element
B). To access and modify the text content of an HTML element
C). To access and modify the value of an input element
D). To access and modify the URL of an anchor element
Which JavaScript event is triggered when a user clicks on an HTML element?
A). click
B). hover
C). submit
D). change