What should I learn?

Question

I want to be a backend web/app developer. So I will be learning about backend technologies. I just don't know how to begin learning.

Here is what I know:
1. Familiarity of HTML/CSS/JS.
2. Little bit about Git/Servers.
3. Fundamental of jQuery and little about other JS Libraries.

Here is my problem:
1. I am afraid I will end up in trouble if I learn higher concepts first, or miss basics.
2. I don't know what are the basic concepts (ftp, dns, wordpress, firebase, php idk).
3. PHP SQL Python is what order?

Answer 1

Hi Baldeep Singh

Here is order for Web Development..
• Start with HTML, and then move on to CSS, JavaScript, JQuery, PHP, and SQL. (src. https://www.sololearn.com/faq/#q1)

Here is some resources for Web Development👇
https://www.sololearn.com/discuss/617443/?ref=app
https://www.sololearn.com/discuss/790206/?ref=app

Editors & Apps for Web Development👇
https://code.sololearn.com/WLERR0KIgB86/?ref=app

Answer 2

Here is a very rich video, detailed (step by step) guidelines for starting online Career ( learning Web Development [Front End,Back End & Full Stack ] and other Programs):

https://youtu.be/Zftx68K-1D4

⏩⏩A very good reference:
https://www.sololearn.com/Discuss/284542/?ref=app

⏬⏬By August Mein:⏬⏬
1. Choosing your first Language

You can choose any language.
if you can't decided here the guide :

HTML is used to make web structure.

CSS is used to give style or animate web

JAVASCRIPT is used to make dynamic web (you can even make game)

PHP is server side scripting language

SQL is database manajemen in server side

C++ is multiplatform OOP based programming language (you can make many app including Games)

C# is more spesific (windows os) than C++

Java is used to build app that can run on any devices (including Android).
JAVA is not JAVASCRIPT

Python is multiplatform OOP based programming languages with easy syntax (compared to other OOP Language)

Python3 and Django for building strong and very rich website ( flask is used for small website,but Django for everything)

kivy ( a Python Program for anroid )is used for making android apps.

Kotlin is Google's new Program for android.
Google's new android version is built on Kotlin.Kotlin is dynamic and co opt with latest technological development (such as Augmented Reality, Artificial Intelligence, Facial Recognition etc)
It's coding process is also simple and as like Python.

Swift is for building apple / IOS app .

To improve coding skills 2nd link is helpful:

https://www.sololearn.com/Discuss/437973/?ref=app
https://www.sololearn.com/discuss/1062064/?ref=app
https://www.sololearn.com/discuss/1033194/?ref=app