When you hire a Front-End Developer, more experience with source control—especially the flavor you intend to use—will allow them to integrate into a team much more easily. Without these tools, you will quickly hit a point in your project where developers need to see file history and the reason behind a change—but can’t. If the front-end developer you’re considering doesn’t know how to use CSS transforming tools, you can expect bloated style sheets with compatibility issues that take longer to fix. Use of the JavaScript language is fundamental for all front-end developers in order to make web pages interactive. Prashant is a full-stack developer with a broad and versatile coding skill set.

If we want to use test-driven development or behavior-driven development, JavaScript task runners with package managers allow us to set up projects to make applications front-end testable. An application’s front-end receives data from its back-end using networking protocols. Front-end developers need to understand the REST architectural style and standard networking protocols designed for web application environments.

Ui Development

Ui Development

Many times, front-end developers don’t need to build UI elements from scratch. UI frameworks allow for reusing already-created UI elements with defined style guides, compatible with desktop browsers and mobile devices. All front-end developers have to understand web markup and cascading style sheets . These are the standard building blocks that web browsers interpret and present as visual UI elements. hire a Front-End Developer Front-end developers should know HTML5 and CSS3—which have been the standard versions for a while now—and know when to use their more recent features. If we want to provide an engaging experience to our users, hiring good front-end developers is key. Johnathan has 15 years of experience writing web apps that span consumer productivity software to mission-critical financial trading platforms.

Can I get a job if I know JavaScript?

Basically, yes, if you know JS and whatever framework the company you’re applying to uses, you can get a job, but if it’s your first job they might expect to give you a decent amount of hands-on training for the first 3-6 months or so.

Let them explain what approaches are used in JavaScript frameworks and libraries and if they prefer a certain approach. If the front-end developers don’t know JavaScript frameworks and what they were designed for, don’t even think about hiring them. It can also happen that front-end developers have to start building front-end architecture without any support or data from an application’s back-end. In this case, they need to know how to design and develop their own API calls to mock the data that will later be provided from the back-end. If you want to provide a better user experience, SPAs may be one way to do it.

Is jQuery or bootstrap better?

Bootstrap is library written in HTML, CSS, and JavaScript whereas jQuery is written using JavaScript. Bootstrap is based on CSS3 and appears great in new browsers whereas jQuery with its UI component functions may not look as great as Bootstrap, it provides a cleaner fall back in older browsers.

If your project specifically requires 3D graphics, they should probably be comfortable using X3D or a similar library. Web applications can also use a multiple-page approach or a hybrid of the two. Based on the project, front-end developers should know which approach is appropriate for the project and how to implement it. Event-driven programming is not enough for designing and implementing complex front-end architecture. Front-end JavaScript developers should know other programming paradigms such as MVC, OOP, and functional programming, which support programming concepts that help create reusable and readable front-end code. In this article, we described front-end developers’ responsibilities in a web application context. We divided front-end development work into two categories–UI and JavaScript development, where each category requires specific knowledge and a specific skill set.

SPAs let user actions trigger re-rendering processes on other UI elements without reloading the whole page. Almost all JavaScript frameworks or libraries for implementing front-end architecture support the SPA concept. Alexander carries multiple technical degrees in Nuclear Physics and worked at CERN as a Python developer implementing dynamic performance optimizations for complex web applications. He excels at rapidly integrating reliable web technologies and achieving flexible software architecture designs. His strong theoretical and practical background in IT, business consulting, and project management makes him extremely capable on projects of any size. It can be very hard for someone who hasn’t been involved in software development to recognize what sort of developer experience is required for the project. But by using the Q&A in the article above, you will be able to recognize if a front-end developer understands and is able to communicate about fundamental concepts effectively.

Ui Development

Ui Development

Front-end developers can use a template for the automatic generation of UI elements. If your project runs on a platform or CMS, front-end developers who are familiar with that platform and templating system have a big advantage, because they can develop your project’s UI faster and with less hassle.

Ui Development

This gives the developer a chance to show their level of experience in the industry. If front-end developers have developed applications for a wider audience or for many years, they should come across compatibility hire a Front-End Developer issues among different web browsers. Even if you don’t use code versioning tools—yet—you’ll want to find a front-end developer who is comfortable setting that up for you and implementing versioning best practices.

Ui Development

hire a Front-End Developer

He has extensive knowledge of front-end JavaScript and browser APIs as well as significant experience with popular frameworks and libraries like React and Redux. Johnathan’s deep full-stack experience includes Node.js and Express, MongoDB as well as more traditional technologies like PHP, ASP.NET, and MySQL. A good opportunity to let them show their knowledge about JavaScript frameworks and libraries and when and how they should be used. There is no universal framework or method when it comes to developing front-end architecture, and the right way depends on the project and team. Front-end JavaScript developers often work closely with back-end developers in order to design API calls which define communication between an application’s front-end and back-end.

Ui Development

hire a Front-End Developer

Ui Development

JavaScript bundlers and task runners process front-end source code, which includes tasks for managing and optimizing source code and dependencies. They allow the automation of repetitive tasks in front-end development without additional tools.

Multiple-page applications redraw the whole UI with every user action that submits or requests new data. Front-end developers should understand this concept and be able to explain to you which approach is suitable for the project and why. These front-end developer interview questions will help you evaluate your candidate’s experience if you’re looking for a simpler infrastructure without much custom JavaScript development. Also, there’s a difference between making simple commits while working alone and knowing how to integrate changes in the context of a fast-paced development team.

  • We divided front-end development work into two categories–UI and JavaScript development, where each category requires specific knowledge and a specific skill set.
  • If the front-end developers don’t know JavaScript frameworks and what they were designed for, don’t even think about hiring them.
  • It can also happen that front-end developers have to start building front-end architecture without any support or data from an application’s back-end.
  • Let them explain what approaches are used in JavaScript frameworks and libraries and if they prefer a certain approach.
  • In this article, we described front-end developers’ responsibilities in a web application context.
  • Front-end JavaScript developers should know other programming paradigms such as MVC, OOP, and functional programming, which support programming concepts that help create reusable and readable front-end code.

Front-end developers are responsible for implementing UI and UX designers’ work. They should be familiar with user interface design best practices and know how to use the output of wireframing and mockup tools like Sketch and Balsamiq. If we want to allow using web applications in mobile devices, the UI should adapt to mobile device environments. (Even if you don’t, your users may try it anyway.) Front-end developers need to know how to build and optimize web applications for so they are flexible when it comes to screen sizes, ratios, and orientations. Front-end developers are experts in the practice of creating HTML, CSS, JavaScript, and more for a website or web application while keeping an eye on UI and UX. The questions presented in this guide help identify those front-end developers with the experience to produce masterful results. SPAs are able to redraw any part of the UI even with new data, without the need to reload all of the UI content.