Q
What does the appendChild() method do in JavaScript?

Answer & Solution

Answer: Option A
Solution:
The appendChild() method in JavaScript is used to append a new child node to an existing element in the DOM. This method adds the specified node as the last child of the specified parent element, effectively extending the DOM structure with new content.
Related Questions on Average

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 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 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

Which JavaScript method is commonly used to create a new HTML element dynamically?

A). document.createElement()

B). document.appendElement()

C). document.makeElement()

D). document.createNode()

Which JavaScript event is triggered when a user clicks on an HTML element?

A). click

B). hover

C). submit

D). change

Which JavaScript method allows you to change the text content of an HTML element?

A). innerHTML

B). setAttribute

C). textContent

D). createElement

How can you dynamically change the CSS style of an HTML element using JavaScript?

A). Use the style property of the element to modify CSS styles

B). Use the setStyle() method to apply CSS styles to the element

C). Use inline CSS within the HTML element's tag to specify styles

D). Use external CSS files and link them to the HTML document

What does the removeChild() method do in JavaScript?

A). Removes a specified child node from an existing element in the DOM

B). Appends a new child node to 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 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;