Simon Willison’s Weblog

Entries tagged nodejs

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How does one decide which Javascript framework (e.g. Node, Backbone, Angular) to use on any given project?

If you are just learning JavaScript, I suggest trying to work without any frameworks or libraries at all. Starting with something like Angular will make it much harder for you to learn the core language and browser APIs.

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In simple terms, what is node.js?

It’s server-side programming, like PHP. The language you write the server-side code in is JavaScript (specifically the JavaScript version supported by Google’s V8 JavaScript engine, which was originally written for the Chrome web browser).

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Does Go have an equivalent node.js’s NPM?

Sort of. Go ships with a command that can download and compile a dependency for your project ("go get github.com/russross/blackfriday") but it doesn’t have a solution for library versioning yet (as far as I can tell).

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What is currently the best technology stack for web scraping?

PhantomJS combined with CasperJS is pretty fantastic—it runs a full, headless copy of a Webkit browser so it can operate against a real DOM, execute JavaScript properly, even grab full rendered screenshots of areas of the page but is still easy to automate.

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Should a beginner to web development start out with Node.Js?

Maybe. One of the things I like about Node.js is that the raw abstraction it provides over HTTP is much closer to how the actual protocol works than the abstractions provided many of the more widely used frameworks such as PHP, Django or Rails. That might actually make it an effective learning tool—I’d be interested in hearing from some web developers who learnt Node.js as their first server-side technology.

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How do I choose between asynchronous web frameworks? My tech group is fairly language agnostic and we’re trying to standardize on some technologies.

Since they are all pretty close to each other and it sounds like your tech group’s skills would support any of them, I would suggest having your tram build a simple prototype in all three so you can compare them for your own particular team and situation.

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What are the design mistakes in the Meteor framework?

Treating the non-JavaScript case as unimportant.

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How do I get started with node.js?

You don’t run Node.js in a script tag on your website. Node is a technology for writing servers in JavaScript—you can think of it as a replacement/alternative for PHP, Python, Ruby, ASP.NET etc.

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Why is node.js so much faster?

There are two main reasons.

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What are the differences between node.js and websockets?

This is like asking “what’s the difference between PHP and HTTP”. Node.js is a technology framework you write code in. WebSockets is a protocol which can be implemented using a technology framework. You can use Node.js to implement the server-side aspect of WebSockets.

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How difficult is to to learn a language framework, like node.js?

The answer varies enormously depending on the language and the framework. Some frameworks are very easy to pick up, others are harder.

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What are the biggest sites/web applications that are using the Node.js framework?

I imagine LinkedIn are one of the largest now—they use Node.js for the back-end of their mobile and tablet apps.

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What server do I need to handle 1000+ users simultaneously while they can post messages, upload pictures, and other similar stuff on a website based on PHP and mySQL?

You don’t need to handle 1,000 users simultaneously: you need to build something and ship it and start the process of discovering what you can build that will attract that many users. Seriously: don’t even start worrying about that kind of scale until you know you’re going to need it.

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How does Linkedin use Node.js?

They use it for the backed for their mobile app. Here’s an article with more information: http://venturebeat.com/2011/08/1...

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What are the best practices in Node.js to communicate with an existing Java backend?

Node speaks HTTP extremely well, and using HTTP means you can do things like put an HTTP load balancer or cache (such as varnish) between Node and your Java application server at a later date.

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Does Quora use node.js?

Quora use their own event-based Python web framework which they’ve talked about quite a bit, called LiveNode. I believe it’s based on Tornado, the open source Python evented framework/appserver that was open sourced by Facebook after they acquired FriendFeed.

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Is Node.js a strong platform to use to build a RESTful API platform?

Yes. It’s very, very good at speaking HTTP.

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Why is Diaspora built on Ruby on Rails instead of Node.js?

Because Node.js had almost no visibility at all six months ago when Diaspora started. Also, Node.js has only very recently stopped breaking API backwards compatibility on a regular basis. Plus the Ruby library ecosystem is much, much larger than the Node.js ecosystem.

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Would you recommend using Google Go with web.go, or Node.js for a new web server project which will involve high IO?

If you already know JavaScript, picking up Node.js is pretty easy. It also has a much larger community of web developers around it at the moment than web.go, which means there’s more example code / open source bits and pieces floating around.

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What companies are using Node.js in production in Texas?

There’s a list on this page: https://github.com/joyent/node/w...

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