ReactJS Interview Question

Related Software Developer Interview Guides Coding Java Python Java 8 Node.js JavaScript Angular Spring Boot Frontend Developer ReactJS Redux Interview Questions Here are some ReactJS Interview Questions on the ReactJS Redux concept.

Class Components Functional Components State Can hold or manage state Cannot hold or manage state Simplicity Complex as compared to the stateless component Simple and easy to understand Lifecycle methods Can work with all lifecycle methods Does not work with any lifecycle method Reusability Can be reused Cannot be reused

We can embed two or more components into one using this method:

A higher-order component acts as a container for other components. This helps to keep components simple and enables re-usability. They are generally used when multiple components have to use a common logic. 

State Props Use Holds information about the components Allows to pass data from one component to other components as an argument Mutability Is mutable Are immutable Read-Only Can be changed Are read-only Child components Child components cannot access  Child component can access  Stateless components Cannot have state Can have props

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We can update the state of a component by using the built-in ‘setState()’ method: