What is JavaScript? Learn web development MDN

This involves things like putting new JavaScript features to the test and fixing any bugs that arise. They also consistently monitor performance and analyze the results of the tests. Afterward, they included the findings in reports that are distributed to stakeholders of the project. Take our free career test to find out if javascript developer is one of your top career matches.

A JavaScript developer creates and maintains online applications using the JavaScript programming language. They develop dynamic and interactive user interfaces, integrate business logic, and connect to back-end systems using HTML, CSS, and other technologies. JavaScript is a versatile programming language that plays a crucial role in modern web development. JavaScript developers are highly skilled professionals who specialize in creating and maintaining applications, websites, and other digital solutions using JavaScript. In this article, we will explore the responsibilities, skills, and career prospects of JavaScript developers.


JavaScript developers use their knowledge of the language and related technologies to write efficient and effective code for web applications. A JavaScript Developer is responsible for developing and maintaining web applications using the JavaScript programming language in computer science. They work with other web developers and designers to create websites and web-based applications that are interactive and user-friendly. In addition to writing code, a JavaScript Developer may also be responsible for troubleshooting, testing, and debugging Web-based application. JavaScript developers play a vital role in creating dynamic and interactive web applications. They possess a deep understanding of the JavaScript language, frameworks, and best practices.

what does a javascript developer do

JavaScript is a programming language that enables you to create interactive web applications. As a JavaScript developer, you’ll be responsible for implementing the front-end logic that defines how users interact with a web application. A JavaScript Developer is responsible for developing and how to hire a javascript developer managing web applications using the JavaScript programming language. They work with front-end web development tools, such as HTML, CSS, and AJAX, to create user-friendly web applications. In addition to coding, they also test and debug applications to ensure they are functioning properly.

Is JavaScript high in demand?

Ricardo has been coding for over 20 years, having worked on projects in more than ten programming languages. He has co-founded companies, worked in a few successful startups as CTO, and managed distributed teams of developers and product designers. His recent work has ranged from data science and machine learning to high-performing web and mobile applications, including Web3 and crypto. A JavaScript developer is a software developer who specializes in building web applications using JavaScript. JavaScript is a programming language used to add interactivity to web pages and create dynamic user interfaces. It is commonly used in front-end web development, but can also be used in back-end development with frameworks such as Node.js.

what does a javascript developer do

As mentioned, JavaScript developers are in the field of creating interactive web pages. Their primary role is to design and construct online applications for clients. They work with HTML, CSS, JSX (or other frameworks) to create these programs. On top of that, they also conduct code validation testing and deal with cross-browser compatibility concerns. This is a comprehensive guide for developers and those who want to learn about JS.

What Does a JavaScript Developer Do?

Code editors are among the most popular tools and technologies used by JavaScript developers. Features like syntax highlighting, code completion, debugging, and version control integration are made available to developers by a code editor. Employers and clients usually expect web developers to have certain skills that demonstrate their ability to deliver on website requirements. If you’re interested in a career as a web developer, these are some skills you can focus on to build a foundation for success. Web developers build websites and ensure they perform reliably and efficiently. Learn more about this critical role in the tech industry and how to get started.

what does a javascript developer do

While you don’t always need a degree to get a job in web development, it can certainly help. If you’re already in school (or considering earning a degree), some majors might be a better fit for your career goals than others. If you’re more interested in back-end web development, consider a degree program in computer science. If you feel more drawn to front-end development, you might opt for a degree in web design or user experience (UX). Abdelhamid is a former GitHub professional software engineer with 13+ years of experience and a master’s degree and PhD in computer science and engineering.

Step-by-Step Guide to Becoming a JavaScript Developer

A JavaScript developer is responsible for building the visual elements and behavior of a website. They also make sure that the front-end is supported by the infrastructure of the back-end, which often requires them to work closely with front-end and back-end developers. If you’re looking for JavaScript development services that can take your business to the next level, you’ve come to the right place. At ABC Company, we pride ourselves on our ability to provide custom solutions that meet the unique needs of our clients. At, we provide world-class JavaScript planning, development, and testing according to industry best practices. We use leading-edge technologies to build JavaScript applications that website visitors love.

It covers the basics of the language, syntax, and how it relates to other languages like Java or C++. It also includes useful information on code formatting, debugging tools, web frameworks, testing frameworks, and much more. For example, with Node.js, JavaScript can be used for server-side programming, allowing developers to build scalable and efficient back-end systems.

What does a JavaScript Developer do?

Once we begin developing your idea, we’ll send you clickable prototypes for testing and feedback. We’ll apply your feedback to the next round of development to achieve a final result you can be proud of. As your development partner, we’ll dive deep to capture your vision and your business goals so we can create ideas together. Emma White is a Business Development Manager at BairesDev with a background in tech company expansion through client base growth. White helps to expand BairesDev’s business at a global scale while managing new market research, overseeing growth projects, and generating leads.

  • JavaScript is a programming language that is most commonly used in web browsers to create interactive web pages.
  • In addition, you will also be responsible for working with other members of the development team to ensure that the application meets all requirements and is up to date with the latest web standards.
  • This allows us to deliver JavaScript solutions that are both robust and scalable.
  • It’s outside the scope of this article—as a light introduction to JavaScript—to present the details of how the core JavaScript language is different from the tools listed above.
  • JavaScript developers are in high demand due to the growing demand for dynamic and interactive websites.
  • We work with popular frameworks and libraries including Node.js, React, Angular, Electron, and Laravel.
  • Abdelhamid’s specialties include JavaScript, TypeScript, Node.js, Python, REST API, GraphQL, Redis, NoSQL, SQL, React, Next.js, microservices, CI/CD, and cloud services.

Although this professional usually focuses on the front-end, the programming language is not limited to this use only. Thanks to Node.js, its use has also become popular in back-end development and some JavaScript developers could also responsible of the server-side sometimes. One advantage of using an object-oriented language like JavaScript is that the programmer can create pre-written code for projects.

In this article

We have a proven track record of delivering quality results on time and on budget. Our team of JavaScript experts is capable of delivering a wide range of customization to suit your needs. We work with popular frameworks and libraries including Node.js, React, Angular, Electron, and Laravel. Java, currently the third most popular programming language after JavaScript and Python, runs on over one billion devices as part of Google’s Android operating system. It’s commonly used for credit card programming, Android apps, desktop apps, and enterprise-level apps.

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