Lifecycle Methods in React
In React lifecycle of components starts from its initialization and ends when it is unmounted from the DOM. Every React Component has a lifecycle of its own, lifecycle of a component can be defined as the series of methods that are invoked in different stages of the component’s existence.
Component can go through four stages of its life as follows.
- Initialization: This is the stage where the component is constructed with the given Props and default state. This is done in the constructor of a Component Class.
- Mounting: Mounting is the stage of rendering the JSX returned by the render method itself.
- Updating: Updating is the stage when the state of a component is updated and the application is repainted.
- Unmounting: As the name suggests Unmounting is the final step of the component lifecycle where the component is removed from the page.
Essential things to know as React Developer
React is an open-source JavaScript library used to create user interfaces in a declarative and efficient way. It is a component-based front-end library responsible only for the view layer of a Model View Controller(MVC) architecture. React is used to create modular user interfaces and promotes the development of reusable UI components that display dynamic data. This article covers all the essential topics provided by ReactJS which every developer should know.
Table of Content
- Why we should learn ReactJS
- JSX and its expressions.
- React Virtual DOM
- Props and State in React
- Components in React
- State Management in React
- React Hooks
- Performance
- Lifecycle Methods in React
- Conditional Rendering