useRef

Learn how to persist the value of a reference between components' re-renderings and update a reference without triggering a re-render.

We'll cover the following

What is useRef()?

Code Example

What is `useRef()`?

The useRef() Hook is used to create references by using a dedicated Hook. We’ll call it in the following way:

const ref = useRef(initialValue);

Code Example

Let’s look at an example:

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Introduction

Introduction to ES2015+

JSX – an Introduction

Rendering of Elements and Components in React

State and Lifecycle Methods

Event Handling

Forms

Lists, Fragments, and Conditional Rendering

CSS and Styling

Higher Order Components

Functions as a Child and Render Props

Context API

Refs

Error Boundaries

Portals

Code Splitting

Typechecking with PropTypes, Flow, and TypeScript

React Hooks – an Introduction

Hooks in Action

The Hooks API

Routing in React

State Management

Internationalization

Conclusion

Appendix

useRef

What is `useRef()`?

Code Example

Introduction

Introduction to ES2015+

JSX – an Introduction

Rendering of Elements and Components in React

State and Lifecycle Methods

Event Handling

Forms

Lists, Fragments, and Conditional Rendering

CSS and Styling

Higher Order Components

Functions as a Child and Render Props

Context API

Refs

Error Boundaries

Portals

Code Splitting

Typechecking with PropTypes, Flow, and TypeScript

React Hooks – an Introduction

Hooks in Action

The Hooks API

Routing in React

State Management

Internationalization

Conclusion

Appendix

useRef

What is useRef()?

Code Example

What is `useRef()`?