5. Beyond the Fundamentals


By the end of this chapter, you will be able to identify the difference between JavaScript's mutable and immutable types; manipulate each of the built-in data types confidently; convert data from one type to another; format data types for presentation; and differentiate between an expression and a statement.


In the previous chapter, you were given a tour of JavaScript, its runtimes, and its history. Using a high-level topography, that chapter will have given you an idea as to what JavaScript is, what it can do, and its ubiquity within the internet software development industry.

Understanding code can be difficult for beginners. JavaScript is no exception. Its flexibility, extensive language ...

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