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MERN Quick Start Guide

You're reading from   MERN Quick Start Guide Build web applications with MongoDB, Express.js, React, and Node

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Product type Paperback
Published in May 2018
Publisher Packt
ISBN-13 9781787281080
Length 302 pages
Edition 1st Edition
Languages
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Author (1):
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Eddy Wilson Iriarte Koroliova Eddy Wilson Iriarte Koroliova
Author Profile Icon Eddy Wilson Iriarte Koroliova
Eddy Wilson Iriarte Koroliova
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Toc

Table of Contents (8) Chapters Close

Preface 1. Introduction to the MERN Stack FREE CHAPTER 2. Building a Web server with ExpressJS 3. Building a RESTful API 4. Real-Time Communication with Socket.IO and ExpressJS 5. Managing State with Redux 6. Building Web Applications with React 7. Other Books You May Enjoy

Catching errors with error boundary components

Error boundary components are just React components that implement the componentDidCatch life cycle method to catch errors in their children. They catch errors in constructor methods when a class component is initialized but fails, in life cycle methods, and while rendering. Errors that cannot be caught are from asynchronous code, event handlers, and errors in the error component boundary itself.

The componentDidCatch life cycle method receives two arguments: the first one is an error object while the second received argument is an object containing a componentStack property with a friendly stack trace that describes where in the React tree a component failed.

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