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Become a Full-Stack Web Developer in 2021: A Guide to Success

If you want to be a successful full-stack web developer, there are some things you need to know. From HTML and CSS to JavaScript and React, it can be hard to keep up with the latest development trends. In this article, we'll go over what a full-stack web developer does and how they do it. We'll also talk about which languages you'll need to learn from beginner to advanced levels. You'll even get a glimpse into what employers are looking for in their candidates! So if you're interested in becoming a full-stack web developer, read on for a guide of success!

What is a Full-Stack Web Developer?

A full-stack web developer is someone who is knowledgeable in all aspects of web development, including design and the back-end. Full-stack developers usually specialize in a specific language, but can learn any language in order to be a full-stack developer.

A full-stack developer will typically be a jack-of-all-trades, but master of at least one. This means that they have a full understanding of front-end technologies and their impact on user experience. They will also have a deep understanding of back-end technologies and how they interact with the front-end.

In fact, many developers have an idea of what they want to specialize in from when they first start learning to code. For example, some developers might enjoy the design aspect of web development more than the coding aspect, which is why they might choose to specialize in front-end technologies.

What skills do I need to become a Full-Stack Web Developer?

You'll need to learn HTML, CSS, and JavaScript to become a full-stack web developer. HTML and CSS are the backbone of the internet, and JavaScript is what builds functionality. So if you're serious about becoming a full-stack web developer, these three languages are a must!

But that's not all. You'll also need to learn languages like React and Ruby on Rails. These languages will help you build more advanced websites and complex projects.
HTML: HTML is the code for structuring and styling webpages. It's what you use to set up your website and how it looks. HTML is the backbone of the internet.

CSS: CSS stands for Cascading Style Sheets. It's what you use to style your HTML, which includes colors, fonts, spacing, and more.

JavaScript: JavaScript is a programming language used to build interactive websites and other online features. It's what makes your website dynamic!

React: React is a JavaScript library that helps your website run efficiently and respond quickly to users. The idea behind React is that it creates one single page instead of separating each page as a new "view."

Ruby on Rails: Ruby on Rails is a programming language used for building complex web applications

How much time will it take me to learn everything I need to know?

There's no one answer to this question, but it's important to know what you're getting into. Full-stack web development is a difficult and time-consuming endeavor. It will require long hours of studying and practice to learn the languages and frameworks that are required to get the job done.

If you're just getting started, then it might be best to work on your fundamentals. Learning HTML and CSS will help you grasp how pages are structured and how to style content. Scripting languages, like JavaScript, will teach you how to add more complex functionality to web pages. Finally, React.js will give you the power to create interactive web applications.

It's important to remember that HTML, CSS, JavaScript, and React are just the basics. If you want to be competitive for an entry-level full-stack developer position, then you'll need more than just these languages. Knowing frameworks like Angular and Node.js will be crucial for getting a leg up on your competition!

How will this career change my life down the road?

What does it take to become a full-stack web developer?

Becoming a full-stack web developer requires many different skills. You'll need to be comfortable working on the front end (HTML, CSS, JavaScript) and on the back end (SQL, Ruby, Rails). You'll also need to be good with software design and know how to code.

One of the most important things for employers is being able to code in multiple languages. That's why many full-stack developers learn how to code in languages like Python, PHP, and C++.

You may be wondering what career path this will lead you down in the future. As a full-stack developer, you'll have the flexibility to work in many different environments. You could be working on websites, apps, e-commerce stores, or whatever else your company needs you to do.

There are many career opportunities for full-stack web developers that are available in the workforce today. It all depends on what you want!

How should I prepare to become a full stack developer?

Practice Technical Interview Questions

There’s no easy way to say this: you need to practice if you want to get really good at answering technical interview questions. Most people don’t know how to address these questions, and feel like they aren’t prepared for them. You can get yourself ready by preparing with sample solutions and practicing out loud.

The best way to prepare is by taking the time to answer real examples of these question types, and then pair that with practice mock interviews. Have a friend or family member ask you the questions while you practice reading your responses out loud.

Here are some questions for you to practice:

  • How is a bubble sort algorithm implemented?
  • How to print the first non-repeated character from a string?
  • How to find the first non repeated character of a given String?
  • How do you find duplicate numbers in an array if it contains multiple duplicates?
  • How do you remove duplicates from an array in place?
  • How are duplicates removed from an array without using any library?
  • How do you find the middle element of a singly linked list in one pass?
  • How do you check if a given linked list contains a cycle? How will you find the initial node of the cycle?
  • How do you reverse a singly linked list without recursion?
  • How is a binary search tree implemented?
  • How do you traverse a given binary tree in preorder without recursion?
  • How do you print all nodes of a given binary tree using inorder traversal without recursion?
  • How is a merge sort algorithm implemented?
  • How is a radix sort algorithm implemented?
  • How do you swap two numbers without using the third variable?
  • How do you design a vending machine?
  • Write a program to find prime factors of an integer?
  • What is depth First Search Algorithm for a binary tree?
  • Difference between a stable and unstable sorting algorithm?
  • What is the difference between Comparison and Non-Comparison Sorting Algorithms?

Know Your Data Structures and Algorithms

Data structures and algorithms are the foundation of computer science. They are also what will make or break your career as a software engineer. As an engineer, you should know how to implement data structures, how they work, what are the trade-offs of each one, and how to use them correctly.

You may not think that knowing data structures and algorithms will make a difference to the high-level responsibilities you’ll be taking on in your career, but you’d be surprised. Many companies are looking for candidates who know their stuff when it comes to data structures and algorithms. If you’re interviewing for a position at Salesforce, for example, it would be smart to brush up on your knowledge of sorting algorithms.

For example, if you're given a question like: "What is the longest increasing subsequence in a given unsorted array?" You need to be able to answer it and know the algorithm needed to solve the problem.

Asking questions about how data is organized and what algorithms can be used to solve problems will help you prepare for a technical programming interview. – The Best Coding Interview Preparation Website you can trust

Among many other platforms, JudoCoder is the most reliable and efficient coding interview preparation site. Here, many coding problem-solving programs, challenges, and question-answer challenges prepare you well for your upcoming interview.

JudoCoder has a lot of coding challenge questions for your practice and knowledge. They will strengthen your programming concepts and skills. The challenges, and questions focus on various coding aspects such as algorithms, arrays, data structures, BST, Anagrams, recursion, backtracking, Hashmaps, dictionaries, string manipulation, and more.


If you're ready to take the next step in your career, then this guide is for you. You'll learn what it takes to become a successful full-stack web developer with the languages and skills necessary to get you there.

There are many free resources available online, but if you want the best education possible, then it may be time to invest in a computer programming degree.

The good news is, provides handpicked selection of all sorts of data structures and algorithm questions, most of these questions have been asked in a real interview!.

I would suggest you create a free account at and start practicing your skills. You will be prepared in no time!..

No matter what path you choose, now is the time to prepare for the future—by becoming a full-stack web developer.

Top comments (2)

henrygi95663175 profile image
Henry Gibson

Becoming a full-stack web developer is not an easy task because there is no standard definition of what that means. The first step is to decide what kind of web development you want to do. The term “full-stack” covers a lot of ground. You can do front-end development (designing websites) or back-end development (programming business logic). You can also do both. I would like to learn more here about the video games and important social issues that youngsters are facing these days.

chauhansaurabh310 profile image

JudoCoder has a lot of coding challenge questions for your practice and knowledge. learn more