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You Don't Know JS: Up & Going

Read These If You Haven't Already

Chapter 1 TL;DR

Learning programming doesn't have to be a complex and overwhelming process. There are just a few basic concepts you need to wrap your head around.

These act like building blocks. To build a tall tower, you start first by putting block on top of block on top of block. The same goes with programming. Here are some of the essential programming building blocks:

  • You need operators to perform actions on values.
  • You need values and types to perform different kinds of actions like math on numbers or output with strings.
  • You need variables to store data (aka state) during your program's execution.
  • You need conditionals like if statements to make decisions.
  • You need loops to repeat tasks until a condition stops being true.
  • You need functions to organize your code into logical and reusable chunks.

Code comments are one effective way to write more readable code, which makes your program easier to understand, maintain, and fix later if there are problems.

Finally, don't neglect the power of practice. The best way to learn how to write code is to write code.

Chapter 2 TL;DR

The first step to learning JavaScript's flavor of programming is to get a basic understanding of its core mechanisms like values, types, function closures, this, and prototypes.

Of course, each of these topics deserves much greater coverage than you've seen here, but that's why they have chapters and books dedicated to them throughout the rest of this series. After you feel pretty comfortable with the concepts and code samples in this chapter, the rest of the series awaits you to really dig in and get to know the language deeply.

Chapter 3 TL;DR

The YDKJS series is dedicated to the proposition that all JS developers can and should learn all of the parts of this great language. No person's opinion, no framework's assumptions, and no project's deadline should be the excuse for why you never learn and deeply understand JavaScript.

We take each important area of focus in the language and dedicate a short but very dense book to fully explore all the parts of it that you perhaps thought you knew but probably didn't fully.

"You Don't Know JS" isn't a criticism or an insult. It's a realization that all of us, myself included, must come to terms with. Learning JavaScript isn't an end goal but a process. We don't know JavaScript, yet. But we will!

Appendix A TL;DR

Thank you to a lot of people.