How Much JavaScript Is Needed To Learn React?

How Much JavaScript Is Needed To Learn React?

Blake Yeboah
ยทDec 7, 2021ยท

2 min read

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React is a very popular and powerful JavaScript library used to build component-based user interfaces. Obviously, before learning a library or framework, you need to know the language but the question remains - how much JS do you need to know? That's the topic for this article.

The Fundamentals

Before learning React, you are definitely going to need to know the fundamentals of JavaScript. This includes:

  • Variables
  • Functions
  • Arrays
  • Objects
  • Event Listeners
  • etc

Having a good basis of JavaScript will definitely help you learn React. This is because in React, you will be writing JavaScript code and simply make use of React's functions and architecture.

One issue with not properly grasping the basics before learning React is that you won't know whether you are learning a feature of the library or a feature of the language. This will significantly affect your learning journey especially if you are a complete beginner.

ES6

Another part of JavaScript you should probably learn before learning React is ES6. ES6 added a lot of useful new features to JavaScript like classes and array methods (e.g .map())

I believe its important to learn ES6 before learning React since things like classes play a crucial role in React applications.

I would say this would be the bare minimum needed to learn React. However I would suggest you get very comfortable with vanilla JavaScript and learn things like DOM manipulation however that is not directly needed to learn React.

Conclusion

In conclusion, I recommend you learn the fundamentals of JavaScript as well as ES6 to be able to learn React. This is my opinion but I think its valid and reasonable. In the end of the day, if you feel ready to start learning React, there is no harm in trying.

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