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Node.js EACCES error when listening on most ports
...grade privileges after you have bound to the low port using process.setgid and process.setuid.
Running on heroku
When running your apps on heroku you have to use the port as specified in the PORT environment variable.
See http://devcenter.heroku.com/articles/node-js
const server = require('http'...
Is It Possible to NSLog C Structs (Like CGRect or CGPoint)?
...t doesn't work is because %@ signifies an object. A CGPoint is a C struct (and so are CGRects and CGSizes).
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How to delete a property from Google Analytics
...ecember 5, 2014 : Converted this to community wiki… feel invited to edit and update.
UPDATE/EDIT – AUGUST 1, 2014
Google has done it again… they changed the design. But they also made things a bit simpler and more logic. Go to Administration → Property Settings and look for the Delete P...
How to split a column into two columns?
I have a data frame with one column and I'd like to split it into two columns, with one column header as ' fips' and the other 'row'
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Can “this” ever be null in Java?
Saw this line in a class method and my first reaction was to ridicule the developer that wrote it.. But then, I figured I should make sure I was right first.
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Show/Hide the console window of a C# console application
...the console window by its title . I dug a bit deeper into the Windows API and found that there is a much better and easier way, so I wanted to post it here for others to find.
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Squash my last X commits together using Git
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Use git rebase -i <after-this-commit> and replace "pick" on the second and subsequent commits with "squash" or "fixup", as described in the manual.
In this example, <after-this-commit> is either the SHA1 hash or the relative location from the HEAD of the c...
Why is my Spring @Autowired field null?
...sn't know about the copy of MileageFeeCalculator that you created with new and didn't know to autowire it.
The Spring Inversion of Control (IoC) container has three main logical components: a registry (called the ApplicationContext) of components (beans) that are available to be used by the applica...
Visual Studio keyboard shortcut to automatically add the needed 'using' statement
What is the keyboard shortcut to expand the little red line that gives you the menu where you can choose to have the necessary using statement added to the top of the file?
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How to get file creation & modification date/times in Python?
...on date in a cross-platform way is easy - just call os.path.getmtime(path) and you'll get the Unix timestamp of when the file at path was last modified.
Getting file creation dates, on the other hand, is fiddly and platform-dependent, differing even between the three big OSes:
On Windows, a file'...