DEV Community

Cover image for Building a Netflix clone with Vanilla JavaScript.
Emmanuel Ugwu
Emmanuel Ugwu

Posted on • Updated on

Building a Netflix clone with Vanilla JavaScript.

Without the application of JavaScript, the Internet as we know it would not be at the level it is at today. JavaScript has become integral to the Internet experience as developers build both basic as well as advanced applications with the aim of a dynamic and increased interaction experience for users. This means that social media apps, e-commerce platforms, online video streaming, search and map engines would not be possible without it. Online video streaming platforms like Netflix have contributed to the Internet through the distribution of high quality media content, the type of entertainment that has been traditionally produced by the Hollywood studios and major television networks. Today we’ll be building a Netflix clone using plain JavaScript and the main prerequisite for building or understanding this article is knowledge of HTML, CSS and vanilla JavaScript.

Getting Started

In this article, we will go about how a Netflix clone can be created using HTML, CSS and plain JavaScript, written in a way where every developer, regardless of skill level, should be able to follow.

Defining our elements

Background header

The header is made with a background image that uses a cover CSS property as its background size to cover the entire container, even if it has to stretch the image or cut a little bit off one of the edges. The “Sign in” and “Get Started” buttons created are linked to our sign-in page with the help of an onclick() element, which calls onto a function.

function displayButton(){
    var final = document.getElementById('final');
    var main = document.getElementById('main');
    final.classList.toggle('closed');
    main.classList.add('closed');
}
Enter fullscreen mode Exit fullscreen mode

The purpose of the function above is to hide the Netflix header then show the sign-in page once either of the “Sign in” or “Get Started” buttons are clicked.

The image below shows the Netflix header:
Background Header

Sign In Feature

The sign-in feature consists of “E-mail Address” and “Password” input elements, where the email uses a regex sequence of characters to validate an if/else statement. The if/else statement checks whether any value put into the email address input element is in the form of an email, else an alert would pop up stating that the email is invalid. In a situation where it is left blank, a different alert pops up stating that the email cannot be left blank.

if(eVal === ''){
  alert('Email cannot be left blank');
  } else if(!isEmail(eVal)){
    alert('Email is invalid');
  } else if(isEmail(eVal)){
    console.log(true);
  }

function isEmail(EmailVal){
  return /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/.test(EmailVal);
}
Enter fullscreen mode Exit fullscreen mode

The password input element also uses an if/else statement to prevent it form being left blank. If both input elements pass the validation test, a message saying “Thanks for signing in. Click the sign out button” pops up below the sign-in button.

if(pVal === ''){
  alert('Password cannot be left blank');
  } else {
    console.log(true);
  }
  if(isEmail(eVal) == true && pVal !== true){
    thanks.innerHTML = 'Thanks for signing in. Click the sign out button'
  }
Enter fullscreen mode Exit fullscreen mode

Videos and Gifs

This section applies the use of videos, images ,and gifs. The attribute autoplay playsinline muted loop is added to the video element, where the playsinline attribute enables the video to always play in a required position rather than in fullscreen. With the help of some CSS properties the videos and gifs are also sized and adjusted to fit their required positions.


Demo of our videos and gifs in use.

Building an accordion menu

We'll need to build an accordion to house the FAQs(Frequently Asked Questions) and answers to them, for that an accordion menu will be needed.
An accordion menu is a graphical control element comprising a vertically stacked list of items that can be clicked to reveal or hide content associated with them. Suitable answers are provided within the list of items, in a way that when the control element is clicked on, the answers will be revealed. A function is linked to the FAQ element to enable it to show and hide its content with ease.

The function below reveals or hide the accordion content.

function toggle1(){
    var x = document.getElementById('ans1');
    var y = document.getElementById('rot1');
    y.classList.toggle('rotate');
    x.classList.toggle('closed');
}
Enter fullscreen mode Exit fullscreen mode

As shown above, the function toggles on the class of our control element answers using a classlist property, where the closed class has a CSS property of display: none to hide or show its content.

Footer

The footer makes use of a grid CSS property to style it in the form of rows and columns, making it easier to design web pages without having to use floats and positioning. The CSS property grid-template-columns: repeat(4, 1fr) creates 4 columns and a row. The extra CSS properties below are applied to make it look better.

.footer-column{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-gap: 4rem;
}
Enter fullscreen mode Exit fullscreen mode

Video

Demo of the app in use

Conclusion

With basic knowledge of JavaScript and the application of these few steps, you can build a Netflix clone. To have better understanding of the code base of this article, you can check it out on Github.

Discussion (8)

Collapse
matengodev profile image
Davis O Matengo

How did you get this good. Show me your ways

Collapse
ugwutotheeshoes profile image
Emmanuel Ugwu Author

Haha. I learnt most of what I know from code related sites and YouTube.

Collapse
matengodev profile image
Davis O Matengo

hehe...direct me to the exact resources sir..

Thread Thread
Sloan, the sloth mascot
Comment deleted
ugwutotheeshoes profile image
Emmanuel Ugwu Author

I learnt most of what I know from freecodecamp and w3schools. You can search YouTube for videos if you prefer that.

Thread Thread
matengodev profile image
Davis O Matengo

Bless up bro.Thanks

Collapse
toomakesense_17 profile image
Kings Amalaego

Brilliant submission, Thanks for sharing this info.

Collapse
ugwutotheeshoes profile image
Emmanuel Ugwu Author

thanks a lot.