Frontend Web Development Bootcamp - Build a Twitter Clone - Select and manipulate the elements - Part 1

This video tutorial explains how to use the getElementById method in JavaScript to select HTML elements by their ID attribute. It highlights the importance of unique ID attributes and demonstrates how to manipulate element content using the textContent and innerHTML properties. The tutorial provides examples of selecting elements, changing their content, and understanding the differences between textContent and innerHTML.

What is the primary purpose of the getElementById method?

• To delete an element from the DOM

• To create a new HTML element

• To select an element by its unique ID

• To select multiple elements by class name

What happens if multiple elements have the same ID when using getElementById?

• It throws an error

• It returns all elements with that ID

• It returns null

• It returns the first element with that ID

Which property would you use to change the text content of an element?

• innerHTML

• textContent

• outerHTML

• value

What is the effect of using textContent on an element with child elements?

• It changes the text of the child elements

• It appends text to the child elements

• It has no effect on the child elements

• It removes the child elements

How does innerHTML differ from textContent?

• innerHTML only changes text, not HTML

• innerHTML is used for CSS styling

• innerHTML is faster than textContent

• innerHTML can include HTML tags, textContent cannot

What happens when you set innerHTML with HTML tags?

• The tags cause an error

• The tags are parsed and rendered as HTML

• The tags are displayed as text

• The tags are ignored

Which property would you use to include HTML tags in the content?

• outerHTML

• textContent

• innerHTML

• value