What Are the Skills Required for a Javascript Developer?

What is JavaScript?

JavaScript or JS is a scripting language that is used to develop interactive and user-friendly web pages. It has the capacity of changing and updating both HTML and CSS and can also calculate, manipulate and validate data. JS is a dynamic and object-oriented programming language that allows the client-side scripts to interact with the user and make dynamic pages. Some of the features of JavaScript are a follows-

• It is an interpreted and lightweight programming language
• It is designed to create network-centric applications
• Integrated with Java and HTML
• It is an open and cross-platform programming language.

Advantages of using JavaScript

JavaScript is useful in both frontend and backend web development. Let’s check some of its advantages below-

• Interactive - The main pros of using JS in front-end development are that it increases the interactivity of an application. It helps the developers to build some functional components that make the User-Interface of a web application user-friendly. JS increases the interactivity of pop-ups, site navigation, all image sliders, menus, validations form, tabs, and all other components.

• Compatible - JavaScript will always run clean and smooth no matter the type of browser. This feature gives a sigh of relief to the developers because they can express their incorporation without being too worried to handle the compatibility of any application. This feature allows the cross-platform compatibility of apps, hence the developers started to use JS not only to create web apps but also to create mobile apps as well.

• Speed - JS provides quite impressive speed for the implementation of various functions on a website. As it is regarded as a client-side language, it instantly performs the functions and provides the result. As a result of this, the web and mobile applications become efficient.

• Offline Support - JavaScript also helps in back-end development and it offers benefits over other programming languages by providing offline support. It provides support to the application even if there is less or no internet connection. For this purpose, cached data is used to provide an interface to the user until the connectivity is back. This concept is mostly used in the PWAs.

• Functionality - Apart from the client-side programming, JavaScript also increases the functionality of the server-side application also. On the backend side, JavaScript also deals with the database and business logic to create the operation possible to perform the particular function as per the need of the user. Due to all these, the functionality of JavaScript in web development is also increasing.

• Accessibility - As because the frameworks of JavaScript are much lighter, so the code accessibility to the server also becomes smooth and easier. The program inflow remains uninterrupted without any worry of a software crash. The more the codes are accessible, the results are better and the overall performance of the application remains static every time.

Top Skills and expertise of a JavaScript Developer

JavaScript Developer is a booming profile and they are wanted by most of the JavaScript development companies for making robust web pages. This profile is at its peak and those who want to make their future bright can surely opt for this position. So, let’s dig into some of the skills below that a JavaScript Developer should have-

• Proficient in core JavaScript - One of the most important things in JavaScript development is to learn the core of it. The candidate need not have to be a master but should understand the basic paradigm and control flow. JS is both a dynamic and prototype-based programming language and it is very easy to learn even for beginners.

• Client-Side framework and libraries - Often the JS developers get confused about which framework and libraries to choose, but it is recommended to select either React JS or Angular JS because they have a great demand in the market. The candidate must have a good knowledge of both these libraries so that they can secure a bright future.

• Know to write Cross-browser code - The JS developer should know how to write cross-browser code, which means the app or website that they will develop should have compatibility with multiple browsers.

• Knowledge about React JS - It is very crucial for any JavaScript Developer candidate to have knowledge about React JS which is a popular JS library and it allows the developers to perform amazing things very efficiently. It has a virtual DOM that allows quick modification and it is highly demanded in the web development market now.

• Knowledge of Redux - Just like React JS, the JS developer candidate must have the technical knowledge of Redux which is famous state management for React. Although Redux is a bit tough to learn the developers can make things easier by learning Context API. The eCommerce functions of React application need Redux, hence it is important to learn Redux for JS developers.

• Asynchronous programming - If you want to hire a JavaScript developer, then make sure that the candidate is well aware of asynchronous programming. They should also have knowledge about hosting, prototypes, Scope, closures, promises, Coercion, callback, and how all these works in JS.

• Should have good communication Skills - It is one of the most important soft skills of any JavaScript programmer during attending any interview session. The candidate must have strong communication skills so that they can deal with their teams and clients easily. This is a vital skill in every profession and one must work on their communication skills for better opportunities ahead.

• Updates about latest trends and technologies - Technologies changes every single day, so the JS developer must be aware of the ongoing and upcoming trends in web development as well as JavaScript updates to withstand the market competition. Knowledge about the latest trends is very essential because then only the developer can create a market-ready web application as per their clients’ demand.

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