How To create an Error Boundary in React Applications
A step by step guide with an example project
React is one of the popular Javascript libraries. React is released first in 2013 and it gained a lot of popularity over the years. It’s a declarative, component-based, and efficient javascript library for building user interfaces. There is a common problem when you are building a Javascript application. Javascript errors happen at any time or on any page and when it happens it breaks the entire application. This is not a good experience for the users.
The errors can happen in a number of ways: For example, when you are expecting an array from the API and you are looping through it without checking whether the array contains data or not.
In React application, we can deal with this in two ways: using try-catch (only works with imperative code) and using Error Boundary. In this post, we will see what is Error Boundary and how to use it in your React applications with an example project.
- What is Error Boundary
- Prerequisites
- Example Project
- Sample Error Scenario
- Creating an Error Boundary Class
- Demo
- What Errors Error Boundary Can’t Catch
