Video with JavaScript

This tutorial covers controlling video playback using JavaScript. It starts with an introduction to video control, followed by an exploration of HTML video player features. The tutorial then demonstrates how to access video elements using JavaScript and create custom controls like play, stop, and pause buttons. Finally, it shows how to display the elapsed time of a video using JavaScript, providing a comprehensive guide to building a custom video player.

Why is it important to learn how to control video with JavaScript?

• To improve video quality

• To manage video playback on websites

• To create video games

• To edit video content

What is the default behavior of HTML video elements?

• They come with built-in controls like play and pause

• They have no controls

• They automatically play in full screen

• They require JavaScript to function

How can you access video elements in JavaScript?

• Using document.getElementsByTagName

• Using document.getElementById

• Using document.getElementsByClassName

• Using document.querySelector

What happens when you remove the default HTML video controls?

• The video becomes invisible

• The video quality improves

• The video plays automatically

• The video cannot be played

What is the purpose of the play button in the custom video controls?

• To fast forward the video

• To rewind the video

• To play the video

• To stop the video

How does the stop button differ from the pause button?

• Stop button changes the video quality

• Stop button increases the video speed

• Stop button mutes the video

• Stop button resets the video to the beginning

What does the pause button do in the custom video controls?

• It stops the video and resets to the beginning

• It pauses the video without resetting the current time

• It fast forwards the video

• It rewinds the video

How can you display the current time of the video using JavaScript?

• By using the video duration property

• By using the video playbackRate property

• By using the video volume property

• By using the video currentTime property

What function is used to update the video time display every second?

• setTimeout

• setInterval

• clearInterval

• requestAnimationFrame

Why is Math.round used when displaying the current time of the video?

• To increase the video speed

• To change the video quality

• To decrease the video volume

• To round the time to the nearest second