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DailyJS: V8 Optimization Killers

Bluebird gets a lot of respect for its performance and API style, and reading Optimization killers on the Bluebird wiki reinforced my own inclination to use it over the dozens of other competent promise libraries. Dug up by diggan on Hacker News, this wiki page explores some ways seemingly innocent JavaScript can cause V8 to avoid optimisation. It contains a code sample that allows you to detect i

hide_o_55 2014/06/27

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DailyJS: Node Hardware Hacking with Tessel

hide_o_55 2014/06/11

Node.js

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DailyJS: JavaScript Developer Survey 2013: Results

The JavaScript Developer Survey has now closed. As always the results are available to the community for further analysis: Summary Raw spreadsheet data (zipped CSV) Results for 2012 51% of readers write client-side code, while 28% said they write server-side code. Last year client-side was at 98%, so I imagine this is partly due to a changing audience on DailyJS, but it’s interesting how strong se

hide_o_55 2013/12/13

JavaScript

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DailyJS: New Features in npm

npm is moving fast, so here are some features you might have missed since 1.3.7. Remove devDependencies We’ve noticed people running into situations where ./node_modules gathers cruft. For example, installing devDependencies during deployment due to various reasons. To clean up in npm 1.3.10 and above, just run: npm prune --production Repository Shorthands Use the shorthand "username/repo" for the

hide_o_55 2013/09/07

Node.js

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DailyJS: LevelDB and Node: What is LevelDB Anyway?

This is the first article in a three-part series on LevelDB and how it can be used in Node. This article will cover the LevelDB basics and internals to provide a foundation for the next two articles. The second and third articles will cover the core LevelDB Node libraries: LevelUP, LevelDOWN and the rest of the LevelDB ecosystem that’s appearing in Node-land. What is LevelDB? LevelDB is an open-so

hide_o_55 2013/04/20

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DailyJS: Five Minute Guide to Streams2

Node 0.10 is the latest stable branch of Node. It’s the branch you should be using for Real Work™. The most significant API changes can be found in the stream module. This is a quick guide to streams2 to get you up to speed. The Base Classes There are now five base classes for creating your own streams: Readable, Writable, Duplex, Transf orm, and PassThrough. These base classes inherit from EventEm

hide_o_55 2013/04/09

Node.js

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DailyJS: ES6 for Node

In Harmony of Dreams Come True, Brendan Eich discusses the “new-in-ES6 stuff” that is starting to come to fruition. Although his discussion mostly focuses on Mozilla-based implementations, he does relate upcoming language features to a wide range of JavaScript projects, including games. This is relevant to Node developers because ECMAScript 6 is happening, and changes are already present in V8 its