A Comprehensive Guide to Understanding States and Lifecycle Methods

Simran Sharma
Written by

Simran Sharma

Simran Sharma

Simran Sharma

Technical Writer

A software engineer driven by a passion for innovation. My journey with a strong foundation in computer science has honed my problem-solving skills and ignited an unwavering dedication to cutting-edge technology. I consistently deliver precision, teamwork, and on-time project completion. I’m not just an engineer but a tech enthusiast committed to driving progress.

Quick Summary: Embark on a journey into the heart of React.js as we unravel the intricacies of States and Lifecycle Methods. This comprehensive guide illuminates the core concepts, empowering developers to master the art of managing component states and navigating the lifecycle methods for optimal performance and user experience.

Introduction

ReactJS is a JavaScript library for building user interfaces, and understanding state and lifecycle hooks is crucial for developing dynamic and interactive components. 

State and lifecycle are fundamental concepts in React that allow components to manage and update their data over time. State represents the current condition of a component, while lifecycle hooks are methods that get executed at various points during a component's existence.

State in ReactJS

       ReactJS Component State

  • CLASS COMPONENTS:
    State in class components is declared using ‘this.state’ in the constructor: