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Upgrading Node.js to latest version

So, I have Node.js installed and now when I tried to install Mongoosejs I got an error telling me that I don't have the needed version of Node.js (I have v0.4.11 and v0.4.12 is needed). ...
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Python argparse mutual exclusive group

...ns within the group mutually exclusive. What you're looking for is subcommands. Instead of prog [ -a xxxx | [-b yyy -c zzz]], you'd have: prog command 1 -a: ... command 2 -b: ... -c: ... To invoke with the first set of arguments: prog command_1 -a xxxx To invoke with the sec...
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Key hash for Android-Facebook app

I'm working on an Android app, in which I want to integrate a Facebook posting feature. I downloaded the Facebook-Android SDK, and I got the readme.md (text file) in there, in which it is mentioned to generate the key hash for Android. How do I generate it? ...
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Cached, PHP generated Thumbnails load slowly

...ised by David got my bounty, albeit making my site only 3% faster overall, and while not answering the site's main bottleneck. Time for for clarification of my question, and, another bounty: ...
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How to generate a random number between a and b in Ruby?

To generate a random number between 3 and 10, for example, I use: rand(8) + 3 8 Answers ...
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Difference between ObservableCollection and BindingList

I want to know the difference between ObservableCollection and BindingList because I've used both to notify for any add/delete change in Source, but I actually do not know when to prefer one over the other. ...
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How to make exe files from a node.js app?

... There a few alternatives, both free and commercial. I haven't used any of them but in theory they should work: Iexpress (native windows tool) Quick Batch File Compiler (commercial) BoxedApp Packer "Advanced" Batch To EXE Converter" (freeware) Most will requ...
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Compiling Java 7 code via Maven

...the mvn script in your maven installation to see how it's building the command. Perhaps you or someone else has hard-coded a JAVA_HOME in there and forgotten about it. share | improve this answer ...
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HTML/CSS: Making two floating divs the same height

...ottom padding of a large amount, bottom negative margin of the same amount and surrounding the columns with a div that has overflow hidden. Vertically centering the text is a little trickier but this should help you on the way. #container { overflow: hidden; width: 100%; } #left-col...
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Object comparison in JavaScript [duplicate]

... Unfortunately there is no perfect way, unless you use _proto_ recursively and access all non-enumerable properties, but this works in Firefox only. So the best I can do is to guess usage scenarios. 1) Fast and limited. Works when you have simple JSON-style objects without methods and DOM nodes...