Modern ES6 classes, encapsulation, inheritance, and polymorphism.
Developers who want a bulletproof understanding of vanilla JavaScript before learning React, Angular, or Vue.
Here’s an interesting, honest write-up about “The Complete JavaScript Course 2020: Build Real Projects!” — specifically addressing the idea of it, why people look for it, and what you should actually do instead.
Which (React, Vue, etc.) do you plan to learn next?