December 2015
Beginner to intermediate
276 pages
5h 15m
English
Content preview from You Don't Know JS: ES6 & Beyond
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Chapter 1. ES? Now & Future
Before you dive into this book, you should have a solid working proficiency over JavaScript up to the most recent standard (at the time of this writing), which is commonly called ES5 (technically ES 5.1). Here, we plan to talk squarely about the upcoming ES6, as well as cast our vision beyond to understand how JS will evolve moving forward.
If you are still looking for confidence with JavaScript, I highly recommend you read the other titles in this series first:
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Up & Going: Are you new to programming and JS? This is the roadmap you need to consult as you start your learning journey.
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Scope & Closures: Did you know that JS lexical scope is based on compiler (not interpreter!) semantics? Can you explain how closures are a direct result of lexical scope and functions as values?
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this & Object Prototypes: Can you recite the four simple rules for how
thisis bound? Have you been muddling through fake “classes” in JS instead of adopting the simpler “behavior delegation” design pattern? Ever heard of objects linked to other objects (OLOO)? -
Types & Grammar: Do you know the built-in types in JS, and more importantly, do you know how to properly and safely use coercion between types? How comfortable are you with the nuances of JS grammar/syntax?
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Async & Performance: Are you still using callbacks to manage your asynchrony? Can you explain what a promise is and why/how it solves “callback hell”? Do you know how to use generators to improve the legibility ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.