Components are the building blocks of React applications. They are reusable pieces of code that can be combined to create complex user interfaces. Components can be either functional or class-based.
State is an object that holds the data that determines a component's behavior and rendered output. It can be changed by the component and its children, but it is not accessible from outside the component.
Props and state are both used to pass data between components in React. The main difference is that props are passed down from the parent component, whereas state is managed within the component itself.
The setState() method is used to update a component's state. When setState() is called, React will re-render the component with the updated state.
Lifecycle methods are methods that are called at specific points in a component's lifecycle. They allow developers to execute code at specific times, such as when a component is mounted or updated.
Controlled components are components that have their state controlled by React. Uncontrolled components are components that manage their state internally.
The virtual DOM is a concept in React that allows for efficient updating of the UI. React creates a virtual representation of the DOM and compares it to the actual DOM to determine what needs to be updated.
Higher-order components (HOCs) are components that take in another component and return a new component. HOCs are used to add functionality to existing components without modifying the original component.
In conclusion, React is a powerful library used for building user interfaces. Understanding its fundamentals is essential for success in a React interview. By studying these common React interview questions and their answers, you'll be better prepared to demonstrate your knowledge and skills to potential employers.
In the future, we can expect to see continued growth and development in the React ecosystem, with new features and functionality being added to the library. Staying up-to-date with the latest trends and best practices in React development will be critical for continued success in this field.
The field of engineering is vast and complex, and the job interview process can be challenging for both candidates and interviewers. Prompt engineering interview questions and answers are essential in
As an SEO developer, you play a critical role in improving a website's visibility on search engines. You need to have a deep understanding of both SEO and web development to ensure that the website is
Frontend development is an essential part of web development that focuses on building the user interface of a website or application. Frontend developers are responsible for creating visually appealin
React Native Reanimated, React Native uygulamalarında yüksek performanslı animasyonlar oluşturmak için kullanılan bir kütüphanedir. React Native, mobil uygulama geliştirmek için kullanılan açık kaynak