React Painkillers - Build Improved React.js Apps - Online Course

React Painkillers - Build Improved React.js Apps - Online Course

30-days Money-Back Guarantee

Learn different React techniques, tips and tricks, secret data protection, loading optimization and other cool stuff!

Updated on Sep, 2026

Programming, Web Development, ReactJS

Training 5 or more people ?

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React is super popular library, and as a result there are plenty of jobs positions opened, so this course will help you to get job and successfully pass interviews!

in this course you will find some useful info about how to build react components, typescript examples, optimization techniques, also some job searching and interview tips and tricks. At the end of the course you will find zip archive attached, which you can download and test all the stuff we are talking about during the course.

Treat this course as a multitool - when you have some of problems described here, just open the video you need and watch it! There is no need to watch this course at one night, but you can do that if you want

Are there any prerequisites?

basic understanding of react principles like props, state, component, functional component, class component

basic understanding of javascript and ES6 like closures, data types, objects, destructuring

basic knowledge of CSS and HTML

**warning - this course is not for super complete beginners**

Throughout the course you will learn such stuff as:

event delegation pattern

XSS protection with DOM Purify package

lazy loading of both legacy components and new shiny functional components

intersection observer

route guarding and information hiding

props destructuring problem

recursion in React, rendering lists of comments with recursion

bunch of Typescript examples

Who this course is for:

How to build React robust components

Debugging tips of React app

Communications tips and tricks

Bunch of React component examples

Understanding basic React concepts like props and state, also probably would be good if you took part in developing React project before, but this is not critical, theoretical knowledge is enough

Check out the detailed breakdown of what’s inside the course

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