Take your JavaScript to the next level. Gain an understanding of callbacks, higher-order functions, closure, asynchronous and object-oriented JavaScript!| frontendmasters.com
“Reactivity” is how systems react to changes in data. There are many types of reactivity, but for this article, reactivity is when data changes, you do things.| frontendmasters.com
JavaScript Frameworks generally do a lot of DOM handling for you, but doing it yourself can be the most performant option, and there are quite a few best practices.| frontendmasters.com