A Functional Programmer’s Introduction to JavaScript
For those unfamiliar with JavaScript or ES6+, this is intended as a brief introduction. Whether you’re a beginner or experienced JavaScript developer, you may learn something new. The following is only meant to scratch the surface and get you excited. If you want to know more, you’ll just have to explore deeper. There’s a lot more ahead.
The best way to learn to code is to code. I recommend that you follow along using an interactive JavaScript programming environment such as CodePen or the Babel REPL.
Alternatively, you can get away with using the Node or browser console REPLs.
Expressions and Values
An expression is a chunk of code that evaluates to a value.
The following are all valid expressions ...
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