HomeCoursesJavaScript Fundamentals Before Learning React

4.3

Beginner

JavaScript Fundamentals Before Learning React

Gain insights into JavaScript ES6+, ternary operators, 'this' object, built-in functions, and core concepts like composability and immutability to ease your React learning journey.

Join 2.7M developers at

Overview

Content

Reviews

After teaching React extensively (33.000+ students), be it online for a larger audience or on-site for companies transitioning to web development and React, I always come to the conclusion that React is all about JavaScript. Most of it boils down to JavaScript ES6 and beyond features and syntax, but also ternary operators, shorthand versions in the language, the 'this' object, JavaScript built-in functions (map, reduce, filter) or more general concepts such as composability, reusability, immutability or higher-order functions. While you don’t need necessarily to master all of these before starting with React, they will come up while practicing it and so to learn them will put you at a great advantage. This course is my attempt to give you comprehensive JavaScript skills that will make your React journey smooth and straight-forward.

After teaching React extensively (33.000+ students), be it online for a larger audience or on-site for companies transitioning t...Show More

Content

31 Lessons5 Quizzes5 Challenges

Getting Started

1 Lessons

Get familiar with the essentials of JavaScript to effectively learn and use React.

Entering React after learning JavaScript

Variables, Operators & Expressions

5 Lessons

Unpack the core of variables, operators, expressions, ternary operators, object destructuring, and spread operators in JavaScript.

Variable Declarations in JavaScript

Operators & Expressions in JS

Ternary Operator in React

Object Destructuring & Spread Operators

Quick Quiz on JavaScript Variables & Operators!

Functions

5 Lessons

Work your way through JavaScript function declarations, arrow functions, higher-order functions, and array methods in React.

Classes

5 Lessons

Find out about JavaScript classes, 'this' keyword binding, class inheritance, and React's preference for composition.

Modules

4 Lessons

Take a closer look at modular JavaScript, named/default exports, and leveraging libraries in React.

React

8 Lessons

Focus on understanding React components, props, state, lifecycle methods, and component syntax.

Appendix

1 Lessons

Master the steps to set up create-react-app and understand its initial structure.

Conclusion

2 Lessons

Learn how to use JavaScript proficiency to master React development effectively.

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Course Author:

Robin Wieruch

Developed by MAANG Engineers

Every Educative lesson is designed by our in-house team of ex-MAANG software engineers and PhD computer science educators, and developed in consultation with developers and data scientists working at Meta, Google, and more. Our mission is to get you hands-on with the necessary skills to stay ahead in a constantly changing industry. No video, no fluff. Just interactive, project-based learning with personalized feedback that adapts to your goals and experience.

Trusted by 2.7 million developers working at companies

"These are high-quality courses. Trust me. I own around 10 and the price is worth it for the content quality. EducativeInc came at the right time in my career. I'm understanding topics better than with any book or online video tutorial I've done. Truly made for developers. Thanks"

Anthony Walker

@_webarchitect_

"Just finished my first full #ML course: Machine learning for Software Engineers from Educative, Inc. ... Highly recommend!"

Evan Dunbar

ML Engineer

"You guys are the gold standard of crash-courses... Narrow enough that it doesn't need years of study or a full blown book to get the gist, but broad enough that an afternoon of Googling doesn't cut it."

Software Developer

Carlos Matias La Borde

"I spend my days and nights on Educative. It is indispensable. It is such a unique and reader-friendly site"

Souvik Kundu

Front-end Developer

"Your courses are simply awesome, the depth they go into and the breadth of coverage is so good that I don't have to refer to 10 different websites looking for interview topics and content."

Vinay Krishnaiah

Software Developer

Hands-on Learning Powered by AI

See how Educative uses AI to make your learning more immersive than ever before.

Personalized Interview Prep

Skip the LeetCode grind with a custom roadmap that adapts to your goals. Hands-on practice for Coding Interviews, System Design, and more.

Mock Interviews

Test your skills in a simulated interview setting. Receive personalized feedback based on your performance. Available for Coding Interviews, System Design, and more.

AI Prompt

Build prompt engineering skills. Practice implementing AI-informed solutions.

Code Feedback

Evaluate and debug your code with the click of a button. Get real-time feedback on test cases, including time and space complexity of your solutions.

Explain with AI

Select any text within any Educative course, and get an instant explanation — without ever leaving your browser.

AI Code Mentor

AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!

Course

Understanding Redux: A Beginner's Guide To State Management

Gain insights into Redux fundamentals, explore application-based problems, and discover how to effectively manage state in React environments with this beginner's guide to state management.

12 h

beginner

Course

Test-driven Development with React

Gain insights into Test-driven Development with React. Learn unit and integration testing using Jest and Enzyme, and explore tools like ESlint, Prettier, Babel, Webpack, and Travis CI.

17 h 30 m

beginner

Course

Decode the Coding Interview in JavaScript: Real-World Examples

The ultimate guide to coding interviews in JavaScript. Developed by FAANG engineers, it offers real-world problems and adaptable solutions. Get interview-ready in just a few hours.

17 h

beginner

Course

The Road to React: The One with Hooks

Gain insights into React fundamentals and Hooks. Delve into styling, app maintenance, and performance optimization. Discover hands-on experience by building a Hacker News app for your portfolio.

25 h

beginner

Course

Angular: Designing and Architecting Web Applications

Gain insights into designing scalable Angular applications. Learn about components, directives, routing, RXJS, forms, and Firebase authentication to develop rich, interactive web solutions.

20 h

beginner

Course

Web Development: Unraveling HTML, CSS, and JavaScript

Explore HTML, CSS, and JavaScript fundamentals. Gain insights into forms, controls, OOP in JavaScript, and key CSS patterns. Create responsive, stylized, and performant web applications.

20 h

beginner

Course

C++ Fundamentals for Professionals

Gain insights into professional C++ with essential C++17 standards. Learn about memory management, inheritance, templates, threads, and more to optimize performance and ensure high safety.

23 h

beginner

Course

Database Design Fundamentals for Software Engineers

Gain insights into fundamental database concepts, relational databases, and entity-relationship diagrams. Learn about normalization techniques and basics of SQL to enhance database efficiency.

8 h

beginner

Course

Understanding Redux: A Beginner's Guide To State Management

beginner

12 hour

Course

Test-driven Development with React

beginner

17 hour 30 min

Course

Decode the Coding Interview in JavaScript: Real-World Examples