Vanilla Javascript. There are tons of frameworks out there that come and go, but as long as you know the fundamentals well enough you can transfer that knowledg

Vanilla Javascript. There are tons of frameworks out there that come and go, but as long as you know the fundamentals well enough you can transfer that knowledge to any framework. Sure the code length and complexity will increase, but it will not only force you to learn javascript, but the DOM as well. (canonical example of vanilla vs jquery): $('#myDiv'); vs document.getElementById('myDiv'); I cannot stress enough how important it is to understand the DOM in web development.