Most Important Skills For A Web Developer


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HTML, CSS & JavaScript

⇨ HTML defines the structure of a web page whereas CSS is used to modify and enhance that structure by adding styling. You must have a good grip on these two languages to design a good fond-end.
HTML forms practically every web page on the Internet as we know it. How a website functions depends on the way a developer writes the HTML.



⇨ Cascading Style Sheets (CSS) interpret documents written in a markup language. They’re a more stylized presentation of the HTML language. CSS also describes how an HTML document will look visually as a website. It lays the bricks for a website’s font, colors, and overall layout.



⇨ JavaScript can be used as both a client and server side technology. It can be used to de things like add interactivity to web pages, enhance browser security, manage web content dynamically,ect. It also supports numerous libaries and frameworks that make the life of a web developer easier. JavaScript will allow you to create better experiences for web users. With JavaScript, you can write special features directly onto your sites. These include (but aren’t limited to) search bars, social media share buttons, and videos. JavaScript complements HTML. While HTML forms a basic web page, JavaScript gives it more life and functionality.



Web Protocals

⇨ A good developer must have a solid grasp of the web protocals HTTP ans HTTPS and how they work, as well as of how clients and servers communicate. Working knowledge of Secure Shell Protocal (SSL), used to encrypt the data between servers and clients, is also very helpful.



HTTP: HTTP is the protocol used to transmit all data present on the World Wide Web. This includes text, multimedia and graphics. It is the protocol used to transmit HTML, the language that makes all the fancy decorations in your browser. It works upon TCP/IP.
TCP/IP: TCP/IP is a stream protocol. This means that a connection is negotiated between a client and a server. Any data transmitted between these two endpoints is guaranteed to arrive, thus it is a so-called lossless protocol. Since the TCP protocol (as it is also referred to in short form) can only connect two endpoints, it is also called a peer-to-peer protocol.



Web Technologies & Frameworks

⇨ A good developer will often want to use a framework to make web development faster and easier. Some popular frameworks include:React.js, Angular.js,and Vue.js for front-end and Ruby on Rails,Express, and Django for back-end.

To write ther server side of your website,you need to have a sound grip of sone back-end technology. The most popular ones are Jave,.NET,Python,Ruby,and Nodejs.
Frameworks are NOT shortcuts to becoming a web developer. They exist to help us work faster and easier, but in the end, you still have to know how these libraries and frameworks function to use them correctly. Frameworks simplify your work but give you a more standardized approach to coding.



Command Line

⇨ Web devs will often need the command line to install package and build web applications. The command line is a text interface for your computer. It’s a program that takes in commands, which it passes on to the computer’s operating system to run. From the command line, you can navigate through files and folders on your computer, just as you would with Windows Explorer on Windows or Finder on Mac OS. The difference is that the command line is fully text-based. Nowadays, there are thousands of incredible command line powered tools available specifically for front end languages and workflows. The huge benefits they offer mean leveraging the command line is becoming an ever more essential skill for web designers.



APIs

⇨ Many web technologies are based on APIs and it is important for developers to know the underlying protocals in order to use those technologies efficiently. Application Programming Interfaces (APIs) are constructs made available in programming languages to allow developers to create complex functionality more easily. They abstract more complex code away from you, providing some easier syntax to use in its place.

Client-side JavaScript, in particular, has many APIs available to it — these are not part of the JavaScript language itself, rather they are built on top of the core JavaScript language, providing you with extra superpowers to use in your JavaScript code. They generally fall into two categories: Browser APIs are built into your web browser and are able to expose data from the browser and surrounding computer environment and do useful complex things with it. For example, the Web Audio API provides JavaScript constructs for manipulating audio in the browser — taking an audio track, altering its volume, applying effects to it, etc. In the background, the browser is actually using some complex lower-level code (e.g. C++ or Rust) to do the actual audio processing. But again, this complexity is abstracted away from you by the API.
Third-party APIs are not built into the browser by default, and you generally have to retrieve their code and information from somewhere on the Web. For example, the Twitter API allows you to do things like displaying your latest tweets on your website. It provides a special set of constructs you can use to query the Twitter service and return specific information.



Version Control / Git

⇨ Understanding of version controls applications like Git will make you life a lot easier as it helps you compare files, identify the differences and then merge the changes.
Code versioning or version control enables you to track and control, but also revise any changes to your programming code. Imagine that you make a few smaller changes to your code and then the whole web site stops working. It is more than obvious that the changes you made had errors, the quickest solution is to track back to the last time or version of your code that worked.



Database

⇨ Every web applicationn has a database connected to it at the back-end, from which data is retrieved and displayed on the front-end. A good web developer should have some exposure to a DBMS(Database Management System) to allow them to manager data effectively.
Data is stored, manipulated and retrieved from databases. These days we frequently use cloud systems like Azure or AWS to store these databases. What you have to learn is how to manage data in a database by using languages, such as SQL (Structured Query Language) or NoSQL (used by MongoDB, Firebase and others).



Web Services

⇨ The web servies provided by platforms such as Azure and AWS are widely used for services related to hosting and cloud computing. It helps for a web developer to be able to navigate these platforms.
A web service is a collection of open protocols and standards used for exchanging data between applications or systems. Software applications written in various programming languages and running on various platforms can use web services to exchange data over computer networks like the Internet in a manner similar to inter-process communication on a single computer. This interoperability (e.g., between Java and Python, or Windows and Linux applications) is due to the use of open standards.
Web services are XML-based information exchange systems that use the Internet for direct application-to-application interaction. These systems can include programs, objects, messages, or documents.
Components of Web Services The basic web services platform is XML + HTTP. All the standard web services work using the following components − 1.SOAP (Simple Object Access Protocol) 2. UDDI (Universal Description, Discovery and Integration) 3.WSDL (Web Services Description Language)


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