The developers at Facebook have been showing off React Native for a few months, but it’s finally been released on GitHub: facebook/react-native. I went to a Facebook tech talk about React Native earlier this month, and as someone who has experience developing iOS apps, I was extremely excited about it. React Native lets you write React components with JSX that are converted to native views. In the
Client-side development has been shifting away from monolithic libraries. While jQuery is still hugely popular, building projects from smaller libraries is increasingly common. To make this easier to deal with, projects have appeared to manage dependencies. These tools may be simple package managers, or a combination of a build tool and a package manager. Recent History Client-side package manager
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
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
We are now 100% relying on @testacularjs. Finally! plus.google.com/11032358723052…— AngularJS (@angularjs) October 18, 2012 Vojta Jina created Testacular (GitHub: vojtajina / testacular, License: MIT, npm: testacular) to write better tests for AngularJS, Google’s client-side library that’s rapidly gaining support from the wider web development community. While established projects like Selenium ar
Over the last month we’ve looked at Backbone’s internals in detail. This post summarises these findings. To recap, here’s a list of all the parts in Backbone.js: Hacker’s Guide: Part 1: Setup, Events, Models Part 2: Constructor, Inheritance, Collections, Chainable API Part 3: Router, History, Views Part 4: Inheritance, Sync Leverage Events Backbone’s classes are designed to be inherited from. Ever
An anonymous pipe can be used to connect the standard streams of multiple processes. This example prints out the result of whoami using FIGlet, and also uses tput to colourise the output. Pipes are typically denoted with the vertical bar character. Both the | notation and concept of pipes were created by Doug McIlroy, who was quoted in part one of this series for his “Write programs that do one th
Jake Luer is a Node developer and consultant focused on helping to shape the next-generation of mobile and web applications. He is logicalparadox on GitHub and @jakeluer on Twitter. Chai (GitHub: logicalparadox / chai, npm: chai, License: MIT) is a BDD / TDD assertion library for Node and the browser that can be delightfully paired with any JavaScript testing framework. Chai aims to be an expressi
The console object crops up everywhere. But what is it, and what can it do? Most people seem to use it without realising the sheer convenience it can provide. Let’s take a look at where it comes from, and how to use it correctly. Built-in vs. Host The console object is what’s known as a host object in ECMAScript. Host objects are supplied by the host environment. Node’s documentation refers to con
Node’s module system is deceptively clever. On the surface it seems like it provides just enough functionality to get by, but it can go a long way towards helping to structure an application elegantly. Node’s official documentation covers all of the major features, yet many modules sent in for review at DailyJS don’t use these techniques where they could. For this article I’ll be using Express app
Programming style is where opinion and reason collide, often leading to endless arguments with no clear winner. The real secret to style is to be consistent, and respect other people: if you’re working on a project by another author, then follow their style. Some companies and open source projects may have their own in-house style guide, but it’s generally fairly easy to pick up the style of a pro
The results are in! Thanks to everyone who took part, your answers are now the property of the community. The raw result set is here: JavaScript Developer Survey 2011, Data. A summary of the results generated by Google Docs can be downloaded here: JavaScript Developer Survey 2011, PDF. I got the feeling that client-side developers felt a little underrepresented by the survey, so in future I can r
Alex Kessinger is a programmer who lives in the Bay Area. He strives to make websites, cook, and write a little bit better each day. You can find more from Alex at his blog, on Twitter, and Google+. If you are using a script loader, or even if you are just putting your scripts at the bottom of your DOM, you have a problem. In some cases your scripts will load after the user has clicked on somethin
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