LifeCycle.md

Introduction

React native like other platforms offers various life cycle for creating, updating and terminating your components. Here is a quick overview of the states.

Mounting

These below methods are called in the following order when an instance of a component is being created and inserted into the DOM:

• constructor()
• static getDerivedStateFromProps()
• render()
• componentDidMount()

Updating

An update when needed can be caused by changes to the props or the state. The below methods are called in the following order when a component is being re-rendered:

• static getDerivedStateFromProps()
• shouldComponentUpdate()
• render()
• getSnapshotBeforeUpdate()
• componentDidUpdate()

Unmounting

This method is called when a component is being removed from the DOM:

• componentWillUnmount()

Error Handling

This method is called when there is an error during rendering, in a lifecycle method, or in the constructor of any child component.

• componentDidCatch() Note: Instance properties can be set by using props or state.