Who is the Seasoned JavaScript Developer

There are some key characteristics of a Seasoned javaScript developer. 1-Focus on Fundamentals : focus on the trusted fundamental meaning ,a developer who reads lot of most recommended books in JavaScript ,for example ,you don't know js (six book series), at least every developer should read. 2- Best Practices: How do you get the best practices and the answer is widely used best practices covered by chaicode youtube and the most read javaScript books, understanding the rabbit hole of a topic is quite important. 3- Advanced Concepts: A seasoned developer must know concepts like closures , hoisting ,this and Asynchronous JavaScript(because JavaScript is single threaded, you writing the synchronous will be considered the bad practice). 4- ALl seasoned developer asks why this imp? Before we jump into code, we should examine the thinking behind the problem. If you don't know this ,you don't know the javaScript itself, when you pass a parameters ,the readiness of code decreased, so we pass t