What is front end developer?

A front-end developer is a software developer specializing in developing the client side of web applications. This includes the interface and user experience of a website or web application. They work primarily with technologies such as HTML, CSS, and JavaScript to create a website’s visual and interactive elements. They also use frameworks and libraries like React, Angular, and Vue.js to build web pages and user interfaces.

 

What is the popular front-end technology?

Some popular front-end technologies include:

1. HTML (Hypertext Markup Language) – used to create the structure and content of a website.
2. CSS (Cascading Style Sheets) – used to control the layout and presentation of a website.
3. JavaScript – used to create interactive and dynamic elements on a website.
4. React.js – a JavaScript library for building user interfaces.
5. Angular.js – a JavaScript framework for building web applications.
6. Vue.js – a JavaScript framework for building user interfaces.
7. Bootstrap – a popular CSS framework for creating responsive and mobile-friendly websites.
8. JQuery – A popular JavaScript library for simplifying HTML DOM manipulation and event handling.

These are just a few examples of the many front-end technologies that are widely used in web development today.

 

Compare ReactJS and Angular

React and Angular are both popular JavaScript libraries and frameworks for building web applications. Both are widely used and have a large developer community. However, they have some key differences:

1. Architecture: React uses a component-based architecture, which means that the user interface is built using reusable components. Angular, on the other hand, uses a more traditional Model-View-Controller (MVC) architecture.
2. Data Binding: Angular uses two-way data binding, which means that any changes made to the model are immediately reflected in the view and vice versa. React, on the other hand, uses one-way data binding, which means that changes to the state of the application will only be reflected in the view, and not the other way around.
3. Learning Curve: Angular has a steeper learning curve because it is a more complete framework, with a lot more built-in features compared to React. React is more flexible and allows developers to work with other libraries and frameworks, which can make it easier to learn for developers who are new to web development.
4. Size: React has a smaller library size as compared to Angular.
5. Performance: React’s virtual DOM provides better performance in handling updates and rendering the components.

Both React and Angular have their own advantages and disadvantages, so the best choice would depend on the specific requirements of a project. React is more suitable for small to medium-sized projects while Angular is more suitable for large-scale projects.

 

What are the limitations of Angular?

Angular is a powerful and feature-rich JavaScript framework for building web applications, but like any technology, it has its limitations. Some of the main limitations of Angular include:

1. Steep learning curve: Angular has a lot of built-in features and concepts that can be difficult for developers who are new to web development to understand.
2. Complexity: Angular’s complex architecture and concepts, such as dependency injection, can make it difficult for developers to maintain and scale their applications.
3. Limited flexibility: Angular follows a strict and opinionated approach to development, which can limit the flexibility of developers to use other libraries or frameworks.
4. Large bundle size: Angular has a relatively large bundle size, which can cause performance issues for larger and more complex applications.
5. High resources consumption: Angular uses a lot of memory and CPU resources, which can be an issue when running Angular on low-end devices.
6. Limited Server-side rendering: Angular is not built for server-side rendering, it requires additional libraries to be integrated with Angular to enable server-side rendering.

However, it’s worth noting that most of the limitations of Angular can be mitigated by using the appropriate techniques and libraries, and with the release of Angular universal, Server-side rendering has been improved. And also Angular team is working on improving the size and performance of the framework with the new version.

 

What are the limitations of ReactJS?

React is a popular JavaScript library for building user interfaces, but like any technology, it has its limitations. Some of the main limitations of React include:

1. Steep learning curve: React’s component-based architecture can be difficult for developers who are new to web development to understand.
2. Lack of built-in features: React is a library rather than a framework, which means that it does not come with many built-in features and tools like routing, state management, and form validation. These have to be added via additional libraries.
3. Limited support for SEO: React is JavaScript-based, which can make it difficult for search engines to index and crawl the content of React-based applications.
4. High pace of development: React is under active development, which can make it difficult to keep up with the latest changes and updates.
5. Complexity: React’s component-based architecture can make it difficult to manage the state and data flow of large and complex applications.
6. Limited Server-side rendering: React is not built for server-side rendering, it requires additional libraries to be integrated with React to enable server-side rendering.

However, it’s worth noting that most of the limitations of React can be mitigated by using the appropriate techniques and libraries, and with the release of React Fiber, React team is working on improving the performance of the library. Additionally, there are many libraries and frameworks available that work with React, such as Redux, MobX, Next.js, and Gatsby that can be used to add more functionality and help with SEO, server-side rendering and more.

 

What is the scope of the job in reactJS in India?

ReactJS is a popular JavaScript library for building user interfaces, and it is widely used in web development. The demand for React developers is high in India, as well as in other countries, as many companies are looking for developers who are proficient in React to build and maintain web applications.

There are many job opportunities available for React developers in India, across a wide range of industries such as e-commerce, finance, healthcare, and technology. Some of the major companies in India that are using React include Flipkart, MakeMyTrip, Ola, and Hike.

According to recent survey, React developers are in high demand in India, and the average salary for a React developer in India is around 7 Lakhs INR per year. The salary can vary depending on the experience, location, and the size of the company.

In summary, ReactJS is a technology with a bright future in India, with many job opportunities and good salary package available for React developers.