Modern JavaScript from the Beginning - Second Edition - Custom insertAfter() Challenge

The video tutorial guides viewers through creating a custom 'insertAfter' function in JavaScript. It begins with a challenge to create the function, followed by an explanation of example code. The instructor provides hints on using DOM properties like parent and sibling elements. The function is implemented step-by-step, tested, and debugged. The video concludes with a summary and a preview of the next topic, which involves replacing elements in the DOM.

What is the main challenge presented in the first section of the video?

• Learning about DOM events

• Styling elements with CSS

• Creating a custom 'insert after' function

• Understanding the 'insert before' method

Which DOM property is used to access the parent of a given element?

• previousSibling

• parentElement

• childNodes

• nextSibling

How can you insert a new element after an existing one using 'insertBefore'?

• By using the 'previousSibling' property

• By using the 'nextSibling' property

• By using the 'firstChild' property

• By using the 'childNodes' property

Why is it important to understand properties like 'parentElement' and 'nextSibling'?

• They are used for form validation

• They are crucial for DOM manipulation

• They help in styling elements

• They are used for event handling

What should you do if you need more information about DOM methods?

• Guess and check

• Refer to the MDN documentation

• Ask a friend

• Ignore the problem