This video is a quick - very quick by my standards - video on a short script and interacting with a website to provide real-time updates to users. The script essentially just pulls in variables and outputs the product (multiplying price * amount) so that a user's total order price changes as they select a different amount.
Most of what I know of JavaScript - which is honestly not a lot - is from the excellent tutorials at W3schools. I've not spent as much time with other elements of how JavaScript interacts with databases and helps create more dynamic websites, but I am still learning as I go.
A couple more sites and references which would be good for future reading and understanding are below. Several are beyond what I've spent time with having focused mostly on PHP and Linux the past couple of years, but I know that they are powerful tools and hope the references can give those interested some more direction for future areas to study to improve their web development skills.
Angular - Typescript- and JavaScript-based (AngularJS) web development platform, led by Google Angular team.
JQuery - more advanced functionality using the JavaScript framework, also includes some potential for DB interaction, though less a focus than PHP/mysqli.
w3schools Web Development Roadmap - a great overview for all the various building blocks that go into web development.
There are a ton of things that go into building a strong website. This is exactly why so many business chose to pay to have things hosted on Amazon or setup a site with Shopify or Wix. I personally don't like default templates and structure for any site I want to create as often the templates are extremely complex or only partially editable at the HTML/JavaScript/PHP level. That said, things like security - SSL/TLS encryption, secure payment methods, and servers for hosting, and a good CDN for helping copy and deliver content the world-round are costly. Most platforms designed to host a site for you take care of a lot of that back end and any creator would need to weigh said costs with the flexibility of developing a site completely from scratch.
Hopefully these tutorials can help those looking to just gain a basic understanding of what goes into web design.
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