InnovationM Reactjs Developer Interview Questions, Process, and Tips

React JS is a JavaScript library for building user interfaces.

• Virtual DOM for efficient updates

• Component-based architecture for reusability

• JSX syntax for easy rendering

• Unidirectional data flow for predictable state management

• Server-side rendering for SEO optimization

Redux is a predictable state container for JavaScript apps.

• Redux is a state management library for JavaScript applications.

• It provides a centralized store to manage the state of an application.

• Redux follows a unidirectional data flow pattern.

• It allows for easy debugging and testing of an application's state.

• Redux can be used with React, Angular, Vue, and other JavaScript frameworks.

Closures are functions that have access to variables in their outer scope.

• Closures are created when a function is defined inside another function.

• The inner function has access to the outer function's variables, even after the outer function has returned.

• Closures can be used to create private variables and functions.

• Example: function outer() { let x = 10; function inner() { console.log(x); } return inner; } const closur

CallStack is a data structure that stores function calls in a stack. Memory Heap is a region of memory where objects are stored.

• CallStack is a LIFO data structure that keeps track of function calls.

• Memory Heap is a large region of memory where objects are allocated.

• Variables and function calls are stored in CallStack while objects are stored in Memory Heap.

• When a function is called, it is added to the top of the CallSt...read more

Redux is a state management library for JavaScript applications.

• Redux stores the entire state of the application in a single store.

• Actions are dispatched to update the state in the store.

• Reducers are pure functions that take the current state and an action, and return a new state.

• Components can subscribe to the store to receive updates when the state changes.