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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.

JavaScript Fundamentals Before Learning React

Function A should be entirely independent of Function B

If there are more than one classes in a file, split it!

All methods written inside class definition should be strongly related to the class

Which of these scenarios best explain Modularity:

Which of these scenarios best explain Modularity:

The intellisense suggested modules are actually dependencies that exist in:

The intellisense suggested modules are actually dependencies that exist in:

We don't. We just write the name of module

While importing a module in a file, we specify its path from:

While importing a module in a file, we specify its path from:

Libraries written added within the same Project

The modules that are imported without using the path symbol are actually:

The modules that are imported without using the path symbol are actually:

Which of the following keyword is used to rename the module while importing it 

Which of the following keyword is used to rename the module while importing it

Test your knowledge of Modules with this short quiz!

Getting Started

Variables, Operators & Expressions

Functions

Classes

Modules

React

Appendix

Conclusion

Quick Quiz On JavaScript Modules!