Finally, understanding the language will help you debug and troubleshoot code. If you don’t understand the language, it will be much harder to find and fix errors in your code.
First, you’ll need to understand the syntax of the language. This includes basic concepts such as variables, data types, functions, and objects.
Second, you’ll need to understand the core concepts of the language. This includes the event loop, asynchronous programming, and the Document Object Model (DOM).