June 2014
Intermediate to advanced
696 pages
38h 52m
English
Content preview from Node.js, MongoDB, and AngularJS Web Development
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Synchronous Versus Asynchronous File System Calls
The fs module provided in Node.js makes almost all functionality available in two forms: asynchronous and synchronous. For example, it offers the asynchronous form write() and the synchronous form writeSync(). It is important to understand the difference when you are implementing code.
Synchronous file system calls block until a call completes and then control is released back to the thread. This has advantages but can also cause severe performance issues in Node.js if synchronous calls block the main event thread or too many of the background thread pool threads. Therefore, you should limit the use of synchronous file system calls when possible.
Asynchronous calls are placed on the event queue ...
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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.