Radical Minds React Js Frontend Developer Interview Questions, Process, and Tips

React hooks are functions that let you use state and other React features without writing a class.

• Hooks are introduced in React 16.8 to allow state and lifecycle features in functional components.

• useState() hook is used to add state to functional components.

• useEffect() hook is used to perform side effects in functional components.

• Custom hooks can be created to reuse stateful logic across components.

• Hooks should always ...read more

Virtual DOM is a lightweight copy of the actual DOM, used for efficient updates and rendering in React applications.

• Virtual DOM is a concept in React where a lightweight copy of the actual DOM is created.

• It allows React to efficiently update and render components by comparing the virtual DOM with the actual DOM and only making necessary changes.

• Virtual DOM helps in improving performance by reducing the number of direct...read more

Redux is a state management library for React applications. Middleware is a function that intercepts actions before they reach the reducer.

• Redux is used to manage the state of a React application in a predictable way

• Middleware in Redux allows you to write logic that can intercept and modify actions before they reach the reducer

• Common middleware in Redux includes redux-thunk for async actions and redux-logger for loggin

Call, bind, and apply are methods used to manipulate the context of a function in JavaScript.

• Call - allows you to call a function with a specified 'this' value and arguments provided individually.

• Example: function greet(name) { return 'Hello ' + name; } greet.call(null, 'John');

• Bind - creates a new function that, when called, has its 'this' keyword set to the provided value.

• Example: const greetJohn = greet.bind(null, '...read more