Become a Front-end Developer

Have you ever looked at famous website and wondered how it was created? Have you looked at the tech that they use, the way it was laid out, the effects that were applied on the buttons and thought, “I wonder how complicated that is?” or, “I wish I could do that”?

Learning HTML (Hyper-text Markup Language), CSS (Cascading Style Sheets), and client-side scripts like JavaScript might be the fastest way to understand how the website you are seeing was designed. Those are critical skills needed to become a front-end developer – the person assigned to design an user interface that is easy and interactive to use.

What is a Front-End Developer?

Front-end development is mostly focused on the users view of the of development. These developers control the interface displayed in your customers’ browser. A Front-end developer is required to deal with the “customer taste” because they are responsible for every aspect that the customer sees. Sometimes it is as simple as picking an animation for transitioning between two webpages or positioning the menu button. That’s why a front-end developer needs to have a good sense of aesthetics and creativity to fulfill the customer’s preferences. Understanding front-end development might help you to find the difference of front-end developer to full stack developer.

What are the core skills to be a Front-End Developer?


HTML is a markup language that can contain a programming laguage such as Java, PHP, Ruby. It doesn’t need to declare variables, logic, or arithmatic like other programming languages, and requires no compiler to run it.

CSS is a style sheet language. In combination with HTML, CSS can be used to create a rich and interactive user interface wwithin a user’s browser. CSS can be used to modify the type, colors, fonts and allignment of elements of the webpage based on the customer’s preferences.

2. JS (JavaScript)

JavaScript is a scripting language introduced in 1994 as “script mocha”. After a name change in 1997 JavaScript was standardized into a general programing language called ECMAScript-262, and in 2009 the fifth version of ECMA-262 was launched. In 2015 JavaScript was improved as ECMAScript 6 with some significant functional improvements needed by developers. Today JavaScript uses ECMAScript 7 as its standardized language, and can work with HTML to develop more comprehensive webpages that contain items like real-time maps, interactive films, and online games.

3. JS Framework

JavaScript frameworks are collections of JavaScript source libraries (such as VueJS, ReactJS, and AngularJS) that allow developers access to pre-written JS code to use for routine programming features and tasks—literally a framework to build web applications or websites. Data shows that, based on usage, these frameworks attract more users than any others. VueJS scores 45.3k stars, ReactJS 34.2k stars and Angular 12.4k stars (source:

Vue JS is the most popular JavaScript framework because it makes it easy to migrate from an existing system to a new system without updating the source. Vue JS can be used instead of jQuery, and is used in and Behance.

ReactJS is the second most popular framework, because it can real-time data and DOM (Document Object Model) to update a website’s content. Manipulating data using DOM does involve a resource cost, but ReactJS provides a Virtual DOM to mitigate this. Facebook and Instagram are examples of well-known sites that use ReactJS.

AngularJS sometimes suffers in popularity compared to VueJS and ReactJS, because the server is not secure. If the application disables JavaScript, users can only see the base page, but otherwise AngularJS can be powerful. Angular also uses add-ins like RXJS, Angular CLI, Ionic, Angular Material and Angular Universal. Popular websites that use AngularJS are Google About and the GitHub Community Forum.

4. Package Manager

A Package Manager is a piece of software used to manage the dependencies of additional libraries needed for specific functionality. Some of the most used package managers are NPM, Bower, and Yarn.

NPM is the default package manager for the JavaScript language, and runs on environment node.js. NPM consists of some client command lines features known as NPM.
Bower is package manager for developing user interfaces, and is web based. Bower manages CSS and JS libraries.

Yarn is package manager created by Facebook and Google to handle NPM issues such as nested dependency, dependency structure non- deterministic and time installation.

5. GIT

GIT is a version control system that detects and controls file changes within software. For example, in a team of software developers, each member can use GIT to track the changes that others have made in order to review their work.

GIT is very useful for code management in a project involving multiple developers, and to carry out updates in a specific software product. Some the most used GIT examples are GitHub, Bitbucket and Code Commit.

Bitbucket and GitHub are version control system (VCS). Both offer similar functionality and are very popular. Bitbucket was created using Python and Django as the UI. GitHub was created using Ruby on Rails and Erlang. Bitbucket has since integrated with JIRA, but GitHub hasn`t yet integrated with any tracking product. Both can set their repository as public or private, but GitHub only provide 5 private repositories.

Code Commit is version control system that is provided with an AWS account. This VCS have same features as Bitbucket or GitHub, but requires an AWS subscription. Code Commit is considered more secure then GitHub, but similar to Bitbucket’s premium version.

6. Responsive Design

Responsive Design is a self-adjusting design that alter any layers’ form and size to match the device it is being viewed on. With so many types of device with differing displays available, it is important for the frontend developers to develop a compatible design for most varieties of device. Responsive Design also has a framework, the most popular being Bootstrap. It is easy to use and offers many features including layout, grids and components. The latest version of Bootstrap is version 4.

7. Testing/Debugging

Testing or debugging vital to test the functionality and performance of your software. On the front-end, tests should include include logging in, inputting data in a form, uploading and downloading.
Tests are also important to check the validation of a form and the security of the system. For example, to run a test on a system security, developers can employ SQL injection technology.

Testing also can automated testing using purpose-built frameworks. A popular automated testing framework is Cypress with Cucumber.

What are Job Options for a Front-End Developer?

There are many types of job offered for front-end developers and for each position the applicants are required to master all these skills. The different types of role include:

  • Front-end Developer – one who creates the main page of a website or mobile app to adjust its interface to be more attractive and useable. These days front-end developers may also be responsible for processing data from the server and presenting it in an attractive form within the page.
  • Web Designer – an older term for a front-end developer . Usually, a designer creates the creative layout to be displayed on the webpage. To become a web designer, people should have deep experience and skill in using CSS and JavaScript.
  • UI/UX Designers – Front-end developers who focus on developing the User Interface and User Experience. UI designers refine the visual aspect while UX designers perform multiple user testing to ensure the site works well and meets users’ preference.

If you are interested in following your passion and becoming a Front-End Developer, why not join us at Mitrais? You can find the golden opportunity here. We look forward to meeting you soon!


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