The Front-End Web Developer Bootcamp - HTML, CSS, JS, and React - DOM Other Objects

The video tutorial covers methods to target and manipulate DOM elements using JavaScript. It explains how to use IDs, tag names, and class names to access elements, and explores additional document methods like document.all, head, title, and body. The tutorial demonstrates using VS Code and the console for JavaScript coding, highlighting the convenience of software for error detection. Advanced document methods such as links, images, and URL are also discussed, with practical examples of DOM manipulation using getElementById, getElementByTagName, and getElementByClassName.

Which method is NOT used to target elements in the DOM?

• getElementByStyle

• getElementByClassName

• getElementByTagName

• getElementById

What is one advantage of using an editor like VS Code over the browser console for JavaScript coding?

• It allows for direct HTML editing.

• It provides automatic error highlighting.

• It can run JavaScript faster.

• It supports more programming languages.

Which document property would you use to access all the elements in a webpage?

• document.body

• document.all

• document.title

• document.head

What will document.links[5] return if there are fewer than six links in the document?

• An error message

• undefined

• null

• An empty string

What will document.getElementById('header') return if the ID 'header' is not present in the document?

• null

• An error message

• An empty string

• An empty array

How can you access the third element in a list of elements retrieved by document.getElementsByTagName('ul')?

• document.getElementsByTagName('ul').item(3)

• document.getElementsByTagName('ul')[2]

• document.getElementsByTagName('ul')[3]

• document.getElementsByTagName('ul').item(2)

Which method would you use to retrieve all elements with a specific class name?

• document.getElementsByClassName

• document.querySelector

• document.getElementsByTagName

• document.getElementById