10 Must-Have Front-End Developer Skills to Look at Before Hiring in 2022

10 Must-Have Front-End Developer Skills to Look at Before Hiring in 2022 The experts who design and build user interfaces that users view and interact with our front-end developers. Simply put, they employ tools like HTML, CSS, and JavaScript to create visually appealing user interfaces. UX (User’s Experience) and UI (User’s Interface) are the two divisions of Front-End once more. The graphical link between front-end development and user experience is the user interface. User Experience (UX) is a term used to describe how a user feels about a product or service in general. UI is used for design roles, while the front end is utilized for development responsibilities. It is one of the most rewarding careers, and by 2028, it is predicted to expand by 13%. Let’s now discuss the qualities needed to check before hiring a front-end developer in 2022:

HTML, CSS, and JavaScript Without HTML, CSS, and JavaScript, front-end development is not possible. They are essential to creating a dynamic and engaging user interface. Let’s go over each of these in greater detail. HyperText Markup Language, or HTML as it is often known, is a scripting language used to create web pages. It serves as the basis and fundamental building block for web pages. It offers a broad overview of a website’s

appearance. You can use Notepad to edit HTML at the novice level and save changes with the.html extension. You can also use other IDEs for a project.

Cascading Style Sheet, also known as CSS, is a language used to give aesthetics to web pages. It breathes life into a digital document. Simply put, a page can look interesting and appealing by adding features like layout, format, color, typefaces, etc. to the page. To align the text, add color, create an effect, change the font color and size, and many other things, there are numerous properties available.

JavaScript is a text-based programming language that is utilized on both the front end (client-side) and back end (server-side) to create dynamic and responsive web pages. When dealing with JavaScript, several terms and concepts must be thoroughly understood.

Front-end Framework A library may also be included in frameworks, which are the tools that provide components that are specialized to accelerate development. It is a platform or tool for creating your website’s front end. Frameworks, to put it simply, create the building’s layout and structural layout. You must be knowledgeable about the work and how to apply it for quicker coding. The framework can be used to carry out tasks including managing AJAX calls, connecting data to Document Object Model (DOM) elements, specifying a file structure, and styling website elements. There are other front-end frameworks available, including Angular, Vue.js, and React, although the latter is the most widely used, well-liked, and convenient. Facebook created React, an open-source JavaScript library for creating user interfaces (UI). React is a Virtual Document Object Model (DOM) that stands out for its remarkable capabilities.

Responsiveness The days of users checking a certain website on just one device are long gone.

Today, we all view websites on various devices depending on what is most comfortable for us, and we all want the page to seem responsive and dynamic on any device. Front-end developers should be aware of the phrase “responsiveness” when it comes to web development, which means that websites should be responsive and accessed on any device, such as mobile, laptop, phone, tablet, etc.

The website should be able to adapt to the user's chosen device (laptop, tablet, smartphone, etc.).

The days of users checking a certain website on just one device are long gone.

Today, we all view websites on various devices depending on what is most comfortable for us, and we all want the page to seem responsive and dynamic on any device. Front-end developers should be aware of the phrase “responsiveness” when it comes to web development, which means that websites should be responsive and accessed on any device, such as mobile, laptop, phone, tablet, etc.

The website should be able to adapt to the user's chosen device (laptop, tablet, smartphone, etc.).

Version Control Systems A version control system tracks how a file or set of files has changed over time in terms of the source code. They are typically software solutions that assist the development team in managing source code changes while also identifying who made which changes. Every front-end developer should be proficient in it. The most well-known open-source, distributed version control system is called Git (Global Information Tracker), and it allows each user to make changes to the entire repository from their computer. To install it on your machine, use the command line.

Git makes it simple to undo changes and go back and forth with a detailed explanation of what was changed.

CSS Pre-Processer A more sophisticated version of CSS is CSS Preprocessor. It is an application that enables you to produce CSS using the special syntax of the preprocessor. In the long run, it makes it simpler to edit and easier to maintain the code. By removing some lines from the code, CSS preprocessors with features like nested selectors and inheritance selectors—which are not available in pure CSS—make the code more understandable and orderly. It takes time to write repetitive code, which is more common when using only CSS. This can be avoided by employing CSS preprocessors, another component every front-end developer has to use, to speed up CSS development.

Command Line For handling files on your system, use the text-based CLI, or Command Line Interface. Additionally, an all-purpose GUI (Graphical User Interface) has limits for some particular applications. It plays a significant role in web development. When dealing with web development, you enter commands into a terminal and it executes some operations to help get some outcomes. To use a text interface to access operating system features, you should also be familiar with Shell’s characteristics.

You can get speedier management thanks to it. To sum up, command-line tools provide new opportunities for streamlining the creation and delivery of HTML, CSS, and JavaScript code.

Testing and Debugging Testing and debugging are crucial steps that must be taken after a web application has been developed to ensure that the end product is bug-free and offers the user a positive experience. Testing and debugging are essential steps in the software development process because there is a very slim possibility that there won’t be any issues. Any front-end developer should have this additional expertise if they want to create a high-quality website. Let’s clarify the distinction between testing and debugging now: ● A software procedure called testing is used to guarantee the reliability and efficiency of a web application. While testing, several variables, including usability and compatibility, must be taken into consideration. The seamless, error-free operation of the application should be the tester’s priority. There are many different types of testing, some of which include component and unit testing. ● Individual code blocks are tested through unit testing, which verifies that the website will function as intended. Every action is carried out similarly to pressing a button, which, if necessary, navigates the user to another website. ● Component testing inspects a specific component and validates discrete elements of an application. Here, engineers test the written code using actual data as opposed to fictitious data.

Several additional testing methods improve how effectively a website functions.

Integration testing, beta testing, and many more are further types of testing.

Debugging is the process of resolving issues (bugs) in a web application that were discovered during testing. To make the application error-free and ensure that the website functions properly, this procedure entails identifying the defect, locating its source, and fixing the issue. The steps involve locating the error, evaluating it, fixing it, and validating it. Both manual and automatic tools are capable of performing this task. It is a crucial ability for a front-end developer to have because it allows them to identify and correct source code issues. Additionally, breakpoints should be used correctly to examine how the code flows and to detect mistakes line-by-line, which aids in understanding how the code is executed.

Web Performance Optimization The term “web optimization” mainly relates to how quickly a website loads. Web page optimization increases the speed, scalability, and smoothness required for any web application. A website is typically seen as being poorly optimized if it takes more than three seconds to load.

Numerous elements that contribute to optimization problems include Local and global convergence, the function of the underlying optimization technique, the function of multigrid recursion, and the characteristics of the optimization model.

DOM Manipulation Web documents can be programmed using the DOM (Document Object Model) interface. With the ability of computer languages to communicate with the page, it represents the document as nodes and objects. A web page’s document structure, layout, and content can all be modified using the software.

The act of manipulating the HTML page by adding, deleting, altering, and relocating the elements that are displayed in a web browser is known as DOM manipulation.

DOM manipulation should be one of the first concepts learned when learning JavaScript for web browsers. Any online document’s structure and content, including the HTML and styling, are represented by it. You can design responsive online experiences thanks to it. The first step in manipulating an element inside the DOM is to select it and store a reference to it inside a variable. You can change the website’s layout, update the data, and create fully customizable applications without having to refresh the page.

RESTful APIs ● ● ● ●

GET requests are used to get data.

POST request for data creation, data update request using PUT, To remove one from an application, use the DELETE command.

Calls to APIs can utilize any HTTP method. A well-crafted REST API is equivalent to a website that functions using HTTP and runs in a web browser.

Wrapping It All Up… 10 skills are required to be seen in a front-end developer before hiring them in 2022.

Well, it is also suggested to look for a company that is working on these processes already, and outsource your front-end and back-end support. One such company working in the same field is RGInfotech, which provides the most affordable and best front-end support in the market.