August 2016
Intermediate to advanced
635 pages
14h 5m
English
book
JavaScript: Functional Programming for JavaScript Developers
by Ved Antani, Simon Timms, Dan Mantyla
Content preview from JavaScript: Functional Programming for JavaScript DevelopersBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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ES6 syntax changes
ES6 brings in significant syntactic changes to JavaScript. These changes need careful study and some getting used to. In this section, we will study some of the most important syntax changes and see how you can use Babel to start using these newer constructs in your code right away.
Block scoping
We discussed earlier that the variables in JavaScript are function-scoped. Variables created in a nested scope are available to the entire function. Several programming languages provide you with a default block scope where any variable declared within a block of code (usually delimited by {}) is scoped (available) only within this block. To achieve a similar block scope in JavaScript, a prevalent method is to use
immediately-invoked ...
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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.