Original subtitles

Hey, guys, now that we've learned about client servers and databases, let's talk about which are

the technologies that professional developers use to create these backends.

So the programming languages used on the front end are pretty fixed.

It pretty much has to be HTML, CSS and JavaScript because these are the only things that the browser

can work with.

And even though we've seen and worked with some frameworks on the front end and some common ones might

be React, Angular and Vue, these are all JavaScript frameworks and all that they do are they act as

the waiter who allows the client to interact with, ask questions about the menu, tell them that their

email is inputted in an invalid format.

Do all of this front end display and logic, and then when our request reaches the back end, we can

actually work with pretty much any programming language.

Now these are some of the most popular ones Java, Ruby, PHP, C-sharp, Python and JavaScript.

And the reason why the back end language doesn't really matter is because as long as you're able to

use something to generate the HTML, CSS and JavaScript files to send back over to the front end, then

it doesn't really matter what language you use to do that.

For example, if I wanted to Google the sunniest place on earth, I could do that in Japanese, German,

French, English.

It doesn't really matter what language I use as long as at the end I get the results back in a format

that I can read.

Now, some of the most common back end frameworks that you might come across on the internet are Rails,

which is Ruby on Rails, The Java Spring Framework, the C sharp ASP.NET from Microsoft PHP will be

using Laravel or Cake.

And then there's Python, which includes Flask and Django.

And then finally there's JavaScript, which has node.

Now the framework and language that we're going to be using and learning on the back end is Node.js.

And reason number one is in the name.

It is a JavaScript back end framework and we've invested so much time learning about JavaScript in order

to use it on the front end with React, also with vanilla JavaScript.

And now we want to be able to reuse that knowledge of JavaScript to work with it on the back end using

NodeJS.

That's not the only reason though.

It's not just because we already know JavaScript.

So we're using Node.

If you take a look at the latest StackOverflow developer survey, so they survey developers in this

case, 45,000 of them, and they classify them into professional developers and those who are learning

to code.

If we look at professional developers, the number one use of framework for developers is NodeJS, and

this list mixes all of the frameworks, not just front end or back end.

That's why you see React and Angular, and we're going to be covering the number one most popular framework.

So if you want to build a website and you want to be able to get access to the most helpful resources,

the most amount of documentation, the most amount of help online, then you're going to want to use

the most popular framework.

Also, if you want to get a job and you can see that the number one tool that professional developers

use is NodeJS, that means that most of the jobs that are asking for a back end developer or a full

stack developer will expect you to know about Node.

JS Now let's look at some of the other ones that I mentioned.

So ASP.NET Django Flask, that's Python, Laravel for PHP, Ruby on Rails.

These are all a lot less popular when you compare them with NodeJS, and some of them don't really change

in their popularity.

There's always some work for people who are C-sharp developers.

There's always some work for people who work with Python, especially if you're working with a machine

learning web app.

Now, something like PHP, in the case of Laravel and Ruby, in the case of Ruby on Rails, I would

say are actually very much declining in popularity over the years.

And definitely if you see a web boot camp that's still teaching Ruby on Rails in this day and age,

you should probably think twice about signing up and definitely, without a doubt, the most popular

back end framework that.

You need to know is NodeJS.

And because we can't make a 500 hour course, we have to focus on one technology instead of covering

all the technologies where you'll see me, you know, old and grey, and I'm still talking about one

of the other frameworks.

We have to make a choice.

And the choice that I've made is for ease of use because you already know JavaScript, but also the

most professionally important framework that you will be expected to know as a back end developer,

which is going to be NodeJS.

I hope you're excited to learn NodeJS and we will start right away in the next lesson.