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The 7 Most-Used JavaScript Topics You Should Know
Pragmatic JavaScript knowledge that you will actually use.
There is a lot of ground to cover when you are learning JavaScript. It is definitely exciting to learn a new language! — but it can also be a little bit overwhelming. Perhaps you are actively making your way through an online JavaScript course or book. It is all useful information, so how do you know what you will actually end up using?
This post will cover what I have found to be the most-used JavaScript topics in my career. I believe that spending your time on these topics will help you build a more pragmatic knowledge-base of JavaScript.
With that in mind, and in no particular order, here are 7 of the most highly used JavaScript topics that you should know about.
1. Promises
In a recent post, I wrote about recommendations for how you should allocate your time when learning JavaScript. At the very top of that list was asynchronous programming — specifically promises.
The promise is at the center of the asynchronous universe. Understanding how it works and using it correctly is essential to writing any modern JavaScript application.
It is very easy to write sloppy promise code that is both hard to read and to understand. Knowing good promise design patterns can help with that, as can async/await! (more or that later). But for now, here is a simple promise example:
Further Reading:
— ES6 Promises: Patterns and Anti-Patterns by Bobby Brennan
2. Async/Await
Writing code with promises can get messy very quickly. It can be difficult to read and write…
